How long is the flight from London to Ottawa?

KLM, WestJet, and Air Transat can get you from London to Ottawa in just under 11h 46m. Your travel time can differ by up to 6h 51m. Airlines will cover a distance of 3340 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from London to Ottawa round-trip?

Air Canada, at £299, was found to be the cheapest airline from London to Ottawa.Alternate airlines flying return to your destination include United Airlines and KLM. Users have found that Air Canada is 44% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from London to Ottawa one-way?

For one-way options, check prices for Virgin Atlantic. According to our data, you can fly for as low as £274. Users have also found prices from £279 and £408 on WestJet and KLM, respectively.

What is the cheapest day to fly from London to Ottawa?

Travellers seeking maximum savings on their London to Ottawa flight should consider departing on Monday evenings when fares are most often at their lowest. Wednesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 inches per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

What are the most popular routes from London to Ottawa?

When deciding which route to take from London to Ottawa consider London Heathrow - Ottawa, London Gatwick - Ottawa or London City - Ottawa as they are the most popular.

What are the cheapest flights from London to Ottawa?

Looking for the cheapest flight from London to Ottawa? While on average our users pay £2,464, our data indicates the cheapest price to be £386. The most popular route (London Heathrow - Ottawa), is priced around £363.

What are the most reliable airlines from London to Ottawa?

Consider Air Canada (80%), Aegean Airlines (80%) or Austrian Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from London to Ottawa.

What are the most popular airlines that fly from London to Ottawa?

Air Canada, Air France and KLM are the most popular airlines when flying from London to Ottawa.

Where are the most common stopover locations when flying from London to Ottawa?

London to Ottawa flights have a stopover in Paris most of the time. Paris is followed by Montreal in terms of the most popular stopover location on flights from London to Ottawa.

Where are the least popular stopover locations for London to Ottawa flights?

The least popular stopover on flights from London to Ottawa is Toronto.

What are some popular things to do or see while on a stopover in Paris?

Most Paris visitors opt to spend their time experiencing Eiffel Tower, Champs-Elysées, and Notre Dame. Eiffel Tower, Champs-Elysées and Notre Dame are located about 15.8 mi, 14.7 mi, and 14.3 mi, respectively from Paris Charles de Gaulle if you are interested in checking them out. Those landing in Paris looking to spend some time exploring during their stopover can hire a car for about £36 per day.

What airport do you fly into for flights to Ottawa from London?

If you book a flight to Ottawa from London, you will be flying to Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa. There are 4 flights from London to Ottawa per day from 7 different airlines.

Can I find deals for flights from London to Ottawa that include hotel bookings?

Yes. In addition to deals on London to Ottawa flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Ottawa?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Ottawa.

Can I find deals for business class flights from London to Ottawa?

Yes. Cheapflights offers flight deals from London to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£252+ Cheap Flights from London to Ottawa

Q: How much does it cost for a return flight from London to Ottawa?

Airfare is below average for this route at the moment. London to Ottawa flights typically cost between £472 and £613 in October. The cheapest return flight price found within the last 3 days was £417 on Multiple Airlines (4 Oct-10 Dec).

Cheapflights Tip: The best prices from London to Ottawa are usually found in January or February, booked 90 days in advance, depart on a Monday or Friday and return on a Monday

Cheap flight deals from London to Ottawa

Round-trip from	£417
One-way from	£252
Popular in	August
Cheapest in	January
Average price	£530
Good round-trip deal	£520 or less
Good one-way deal	£594 or less

Air France
4/10-10/12
2 total stops
21h 12m total
London to Ottawa

Search Deals

1/10
3 total stops
21h 42m total
London to Ottawa

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£62 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to Ottawa.

Search Deals

Price to beat on a one-way flight from London (LON) to Ottawa.

Search Deals

Find flight deals from London to Ottawa

Cheapest flights from London to Ottawa
Explore the most affordable flight options available from London to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Sat 4/1017:50LHR - YOW

1 stop11h 32mMultiple Airlines

Wed 10/1217:20YOW - LHR

1 stop9h 40mMultiple Airlines

Deal found 17/9£417

Tue 30/917:50LHR - YOW

1 stop11h 32mKLM

Thu 27/1117:20YOW - LHR

2 stops12h 25mKLM

Deal found 16/9£424

Tue 14/1017:50LHR - YOW

1 stop11h 32mAir France

Tue 21/1017:15YOW - LHR

1 stop18h 20mAir France

Deal found 16/9£424

Thu 9/1017:50LHR - YOW

1 stop11h 32mMultiple Airlines

Mon 20/1017:15YOW - LHR

1 stop23h 10mMultiple Airlines

Deal found 15/9£428

Thu 6/1106:30LHR - YOW

2 stops13h 40mKLM

Thu 20/1117:20YOW - LHR

2 stops12h 25mKLM

Deal found 16/9£429

Tue 14/1008:50LGW - YOW

3 stops38h 08mMultiple Airlines

Thu 16/1014:20YOW - LGW

2 stops26h 05mMultiple Airlines

Deal found 17/9£429

Sat 4/1017:50LHR - YOW

1 stop11h 32mKLM

Sat 25/1005:55YOW - LHR

2 stops21h 10mKLM

Deal found 15/9£433

Tue 14/1008:30LHR - YOW

1 stop20h 52mMultiple Airlines

Tue 21/1005:55YOW - LHR

2 stops22h 40mMultiple Airlines

Deal found 16/9£434

Fri 26/1206:30LHR - YOW

2 stops13h 40mKLM

Sat 17/105:40YOW - LHR

2 stops21h 25mKLM

Deal found 15/9£443

Tue 14/1017:50LHR - YOW

1 stop11h 32mMultiple Airlines

Thu 23/1017:15YOW - LHR

1 stop9h 45mMultiple Airlines

Deal found 15/9£444

Sat 1/1109:00LHR - YOW

2 stops19h 42mMultiple Airlines

Sat 8/1105:40YOW - LHR

2 stops33h 55mMultiple Airlines

Deal found 16/9£448

Tue 30/914:45LHR - YOW

2 stops14h 37mMultiple Airlines

Fri 28/1117:20YOW - LHR

1 stop12h 10mMultiple Airlines

Deal found 15/9£448

Best flights from London to Ottawa
Discover carefully curated flight deals from London to Ottawa that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Thu 6/1106:30LHR - YOW

2 stops13h 40mKLM

Thu 20/1117:20YOW - LHR

2 stops12h 25mKLM

Deal found 16/9£429

Sat 11/1010:45LGW - YOW

2 stops18h 37mWestJet

Wed 22/1005:55YOW - LGW

2 stops22h 30mWestJet

Deal found 17/9£471

Thu 9/1006:50LHR - YOW

2 stops12h 01mMultiple Airlines

Wed 15/1019:50YOW - LHR

1 stop29h 45mMultiple Airlines

Deal found 18/9£488

Thu 25/1211:40LGW - YOW

1 stop11h 46mAir Transat

Tue 6/106:45YOW - LGW

1 stop22h 00mAir Transat

Deal found 17/9£489

Mon 22/909:30LHR - YOW

2 stops15h 47mAir Canada

Sun 28/909:05YOW - LHR

1 stop19h 30mAir Canada

Deal found 17/9£489

Wed 11/309:50LCY - YOW

2 stops35h 28mLufthansa

Sun 15/318:20YOW - LCY

2 stops34h 55mLufthansa

Deal found 16/9£622

Thu 8/109:15LCY - YOW

2 stops15h 03mSWISS

Sat 17/116:15YOW - LCY

2 stops15h 25mSWISS

Deal found 16/9£685

Fri 31/1013:00LHR - YOW

1 stop15h 42mMultiple Airlines

Fri 7/1118:55YOW - LHR

2 stops20h 40mMultiple Airlines

Deal found 16/9£492

Sat 27/908:30LHR - YOW

2 stops16h 44mAir Canada

Sun 28/914:00YOW - LHR

2 stops14h 35mAir Canada

Deal found 16/9£493

Wed 24/1211:40LGW - YOW

1 stop32h 16mAir Transat

Tue 6/106:45YOW - LGW

1 stop22h 00mAir Transat

Deal found 16/9£508

Thu 25/912:40LHR - YOW

2 stops16h 39mAir Canada

Sat 4/1018:10YOW - LHR

1 stop21h 50mAir Canada

Deal found 17/9£494

Sun 21/912:40LHR - YOW

2 stops17h 54mAir Canada

Mon 29/909:05YOW - LHR

1 stop19h 30mAir Canada

Deal found 17/9£495

Mon 29/1211:40LGW - YOW

1 stop11h 46mAir Transat

Tue 6/106:45YOW - LGW

1 stop22h 00mAir Transat

Deal found 16/9£555

Wed 24/1206:35LGW - YOW

2 stops36h 52mMultiple Airlines

Tue 6/109:25YOW - LGW

1 stop15h 35mMultiple Airlines

Deal found 16/9£561

Sun 21/909:30LHR - YOW

2 stops15h 47mAir Canada

Sun 28/914:00YOW - LHR

2 stops14h 35mAir Canada

Deal found 17/9£495

Sun 28/1211:40LGW - YOW

1 stop11h 46mAir Transat

Tue 6/106:45YOW - LGW

1 stop22h 00mAir Transat

Deal found 16/9£555

Thu 2/1006:55STN - YOW

3 stops22h 27mMultiple Airlines

Sat 11/1017:05YOW - STN

2 stops26h 15mMultiple Airlines

Deal found 16/9£562

Thu 25/906:50LHR - YOW

2 stops22h 29mAir Canada

Thu 2/1021:55YOW - LHR

2 stops18h 05mAir Canada

Deal found 16/9£497

Fri 9/109:25LCY - YOW

2 stops14h 53mSWISS

Sat 17/116:15YOW - LCY

2 stops15h 25mSWISS

Deal found 16/9£733

Wed 11/311:40LGW - YOW

1 stop17h 01mAir Transat

Sun 15/306:45YOW - LGW

1 stop23h 00mAir Transat

Deal found 17/9£569

Tue 4/1109:50LCY - YOW

2 stops18h 18mMultiple Airlines

Tue 25/1109:15YOW - LCY

2 stops19h 00mMultiple Airlines

Deal found 16/9£569

Tue 14/1006:50LHR - YOW

2 stops12h 01mAir Canada

Thu 23/1012:00YOW - LHR

1 stop28h 00mAir Canada

Deal found 16/9£508

Thu 6/1109:40LCY - YOW

2 stops14h 38mMultiple Airlines

Thu 20/1112:05YOW - LCY

2 stops16h 15mMultiple Airlines

Deal found 16/9£569

Mon 15/1211:40LGW - YOW

1 stop11h 46mAir Transat

Mon 5/106:45YOW - LGW

1 stop22h 00mAir Transat

Deal found 17/9£574

Wed 1/1008:45LCY - YOW

3 stops18h 20mMultiple Airlines

Tue 7/1014:48YOW - LCY

2 stops16h 42mMultiple Airlines

Deal found 17/9£575

Thu 25/1211:40LGW - YOW

1 stop11h 46mAir Transat

Wed 31/1206:45YOW - LGW

1 stop22h 00mAir Transat

Deal found 16/9£583

Wed 15/1010:45LGW - YOW

3 stops19h 49mMultiple Airlines

Wed 22/1005:55YOW - LGW

3 stops27h 15mMultiple Airlines

Deal found 17/9£576

Sat 27/1211:40LGW - YOW

1 stop18h 01mAir Transat

Mon 5/106:45YOW - LGW

1 stop22h 00mAir Transat

Deal found 16/9£597

Sat 4/1010:45LGW - YOW

1 stop33h 01mMultiple Airlines

Wed 10/1205:40YOW - LGW

2 stops47h 20mMultiple Airlines

Deal found 16/9£583

Thu 25/908:15STN - YOW

3 stops45h 07mMultiple Airlines

Thu 2/1005:55YOW - STN

3 stops31h 45mMultiple Airlines

Deal found 17/9£633

Direct flights from London to Ottawa
Explore direct flight options from London to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2025.

Thu 9/1014:05LHR - YOW

Nonstop7h 20mLufthansa

Mon 20/1018:55YOW - LHR

Nonstop6h 35mLufthansa

Deal found 15/9£506

Wed 15/1012:40LHR - YOW

Nonstop7h 20mMultiple Airlines

Wed 22/1021:00YOW - LHR

Nonstop6h 35mMultiple Airlines

Deal found 17/9£515

Thu 2/1014:05LHR - YOW

Nonstop7h 20mLufthansa

Sat 11/1021:00YOW - LHR

Nonstop6h 35mLufthansa

Deal found 16/9£527

Sat 11/1012:40LHR - YOW

Nonstop7h 20mAir Canada

Wed 22/1021:00YOW - LHR

Nonstop6h 35mAir Canada

Deal found 17/9£574

Sat 27/912:40LHR - YOW

Nonstop7h 20mLufthansa

Wed 1/1021:00YOW - LHR

Nonstop6h 35mLufthansa

Deal found 17/9£1,115

Sat 27/912:40LHR - YOW

Nonstop7h 20mLufthansa

Thu 2/1018:55YOW - LHR

Nonstop6h 35mLufthansa

Deal found 17/9£2,101

Sat 11/1012:40LHR - YOW

Nonstop7h 20mLufthansa

Thu 16/1018:55YOW - LHR

Nonstop6h 35mLufthansa

Deal found 15/9£2,473

Last-minute flights from London to Ottawa
Discover last-minute flight deals from London to Ottawa. Data last updated 18 September 2025 and is based on user searches.

Sat 20/909:30LHR - YOW

2 stops15h 47mAir Canada

Mon 6/1009:15YOW - LHR

1 stop30h 45mAir Canada

Deal found 16/9£464

Thu 25/910:45LGW - YOW

2 stops18h 37mWestJet

Thu 2/1005:55YOW - LGW

2 stops22h 30mWestJet

Deal found 16/9£468

Sat 27/914:05LHR - YOW

1 stop23h 55mAir Canada

Sun 28/917:50YOW - LHR

1 stop11h 20mAir Canada

Deal found 17/9£452

Tue 30/917:50LHR - YOW

1 stop11h 32mKLM

Thu 27/1117:20YOW - LHR

2 stops12h 25mKLM

Deal found 16/9£424

Tue 30/906:50LHR - YOW

2 stops13h 14mAir Canada

Thu 27/1120:25YOW - LHR

2 stops19h 10mAir Canada

Deal found 16/9£453

Sat 4/1017:50LHR - YOW

1 stop11h 32mMultiple Airlines

Wed 10/1217:20YOW - LHR

1 stop9h 40mMultiple Airlines

Deal found 17/9£417

Thu 9/1006:50LHR - YOW

2 stops12h 01mAir Canada

Sun 12/1021:55YOW - LHR

2 stops18h 05mAir Canada

Deal found 16/9£462

Sat 11/1010:45LGW - YOW

2 stops18h 37mWestJet

Wed 22/1005:55YOW - LGW

2 stops22h 30mWestJet

Deal found 17/9£471

Tue 14/1017:50LHR - YOW

1 stop11h 32mAir France

Tue 21/1017:15YOW - LHR

1 stop18h 20mAir France

Deal found 16/9£424

Tue 14/1008:50LGW - YOW

3 stops38h 08mMultiple Airlines

Thu 16/1014:20YOW - LGW

2 stops26h 05mMultiple Airlines

Deal found 17/9£429

Tue 14/1008:30LHR - YOW

1 stop20h 52mMultiple Airlines

Tue 21/1005:55YOW - LHR

2 stops22h 40mMultiple Airlines

Deal found 16/9£434

Tue 14/1017:50LHR - YOW

1 stop11h 32mMultiple Airlines

Thu 23/1017:15YOW - LHR

1 stop15h 30mMultiple Airlines

Deal found 16/9£445

One-way flights from London to Ottawa
Search for one-way flight options from London to Ottawa. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Wed 1/1007:40LHR - YOW

3 stops21h 42mMultiple Airlines

Deal found 17/9£252

Mon 15/1208:15LHR - YOW

2 stops45h 27mMultiple Airlines

Deal found 16/9£259

Wed 22/1018:05LGW - YOW

2 stops51h 53mMultiple Airlines

Deal found 16/9£260

Sat 1/1114:00LGW - YOW

2 stops39h 42mMultiple Airlines

Deal found 17/9£266

Wed 15/1022:10STN - YOW

2 stops47h 48mMultiple Airlines

Deal found 17/9£270

Wed 22/1020:50LHR - YOW

2 stops49h 08mMultiple Airlines

Deal found 16/9£274

Mon 15/1209:00LHR - YOW

1 stop11h 10mVirgin Atlantic

Deal found 16/9£275

Sat 18/1010:45LGW - YOW

2 stops18h 37mWestJet

Deal found 16/9£279

Thu 30/1014:00LGW - YOW

2 stops38h 42mMultiple Airlines

Deal found 16/9£287

Thu 23/1005:35LGW - YOW

3 stops40h 23mMultiple Airlines

Deal found 16/9£288

Fri 24/1010:45LGW - YOW

1 stop33h 01mMultiple Airlines

Deal found 16/9£292

Sun 14/1219:20LHR - YOW

1 stop24h 50mVirgin Atlantic

Deal found 16/9£301

Fly from

Fly to

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 6/11

06:30-15:10

2 stops13h 40m

Ottawa

Thu 20/11

17:20-10:45

2 stops12h 25m

£429

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 11/10

10:45-00:22

2 stops18h 37m

Ottawa

Wed 22/10

05:55-09:25

2 stops22h 30m

£471

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 9/10

06:50-13:51

2 stops12h 01m

Ottawa

Wed 15/10

19:50-06:35

1 stop29h 45m

£488

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 25/12

11:40-18:26

1 stop11h 46m

Ottawa

Tue 6/1

06:45-09:45

1 stop22h 00m

£489

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 22/9

09:30-20:17

2 stops15h 47m

Ottawa

Sun 28/9

09:05-09:35

1 stop19h 30m

£489

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 31/10

13:00-00:42

1 stop15h 42m

Ottawa

Fri 7/11

18:55-20:35

2 stops20h 40m

£492

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 27/9

08:30-20:14

2 stops16h 44m

Ottawa

Sun 28/9

14:00-09:35

2 stops14h 35m

£493

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 25/9

12:40-00:19

2 stops16h 39m

Ottawa

Sat 4/10

18:10-21:00

1 stop21h 50m

£494

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 21/9

12:40-01:34

2 stops17h 54m

Ottawa

Mon 29/9

09:05-09:35

1 stop19h 30m

£495

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 21/9

09:30-20:17

2 stops15h 47m

Ottawa

Sun 28/9

14:00-09:35

2 stops14h 35m

£495

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 60 results

...

Best time to book a flight from London to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from London with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Ottawa

How far ahead should I book a flight from London to Ottawa?

To ensure you get the cheapest price possible for a flight from London to Ottawa, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London to Ottawa?

Currently, January is the cheapest month in which you can book a flight from London to Ottawa (average of £588). Flying from London to Ottawa in December is currently the most expensive (average of £875). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to YOW?

It’s typically best to fly out from London to Ottawa in the evening. Doing so could potentially save you 19% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost for a return flight from London to Ottawa?

What’s the top stopover airport for flights from London to Ottawa?

Paris (CDG) – chosen by Cheapflights users on 42% of one-stop itineraries from London to Ottawa on Cheapflights.

What’s the cheapest stopover airport for flights from London to Ottawa?

Toronto (YYZ) is the most affordable one-stop option, with an average return flight price of £516.

What’s the fastest stopover option from London to Ottawa?

Flights via Halifax (YHZ) have the shortest average one-way travel time for one-stop routes: 10h 13m.

Which airport typically offers the quickest stopover for flights from London to Ottawa?

Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average stopover time of 1h 13m.

Reviews of airlines servicing Ottawa

Check out reviews from past customers who have flown with Air Transat, Air France, andVirgin Atlantic from London to Ottawa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Transat

7.7

Good

439 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Sept 2025

BOD - YUL

A little more cushioning in the seats would likely lessen the physical discomfort of the trip.

Air Transat

7.7

Good

439 reviews

Air Transat

7.7

Good

439 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Sept 2025

BOD - YUL

A little more cushioning in the seats would likely lessen the physical discomfort of the trip.

Air France

7.4

Good

1,468 reviews

Air Transat

7.7

Good

439 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Sept 2025

BOD - YUL

A little more cushioning in the seats would likely lessen the physical discomfort of the trip.

Virgin Atlantic

7.4

Good

664 reviews

Air Transat

7.7

Good

439 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Sept 2025

BOD - YUL

A little more cushioning in the seats would likely lessen the physical discomfort of the trip.

Air Canada

7.1

Good

10,000 reviews

Air Transat

7.7

Good

439 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Sept 2025

BOD - YUL

A little more cushioning in the seats would likely lessen the physical discomfort of the trip.

Lufthansa

6.8

Okay

7,409 reviews

Air Transat

7.7

Good

439 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Sept 2025

BOD - YUL

A little more cushioning in the seats would likely lessen the physical discomfort of the trip.

Related info for your journey

What airport do you fly into for flights to Ottawa from London?
If you book a flight to Ottawa from London, you will be flying to Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa. There are 4 flights from London to Ottawa per day from 7 different airlines.
How long is the flight from London to Ottawa?
KLM, WestJet, and Air Transat can get you from London to Ottawa in just under 11h 46m. Your travel time can differ by up to 6h 51m. Airlines will cover a distance of 3340 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from London to Ottawa round-trip?
Air Canada, at £299, was found to be the cheapest airline from London to Ottawa.Alternate airlines flying return to your destination include United Airlines and KLM. Users have found that Air Canada is 44% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London to Ottawa one-way?
For one-way options, check prices for Virgin Atlantic. According to our data, you can fly for as low as £274. Users have also found prices from £279 and £408 on WestJet and KLM, respectively.
What are the most popular routes from London to Ottawa?
When deciding which route to take from London to Ottawa consider London Heathrow - Ottawa, London Gatwick - Ottawa or London City - Ottawa as they are the most popular.
What are the most reliable airlines from London to Ottawa?
Consider Air Canada (80%), Aegean Airlines (80%) or Austrian Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from London to Ottawa.
What are the cheapest flights from London to Ottawa?
Looking for the cheapest flight from London to Ottawa? While on average our users pay £2,464, our data indicates the cheapest price to be £386. The most popular route (London Heathrow - Ottawa), is priced around £363.
Where are the most common stopover locations when flying from London to Ottawa?
London to Ottawa flights have a stopover in Paris most of the time. Paris is followed by Montreal in terms of the most popular stopover location on flights from London to Ottawa.
What are some popular things to do or see while on a stopover in Paris?
Most Paris visitors opt to spend their time experiencing Eiffel Tower, Champs-Elysées, and Notre Dame. Eiffel Tower, Champs-Elysées and Notre Dame are located about 15.8 mi, 14.7 mi, and 14.3 mi, respectively from Paris Charles de Gaulle if you are interested in checking them out. Those landing in Paris looking to spend some time exploring during their stopover can hire a car for about £36 per day.
Where are the least popular stopover locations for London to Ottawa flights?
The least popular stopover on flights from London to Ottawa is Toronto.
Can I find deals for flights from London to Ottawa that include hotel bookings?
Yes. In addition to deals on London to Ottawa flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Ottawa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Ottawa.
Can I find deals for business class flights from London to Ottawa?
Yes. Cheapflights offers flight deals from London to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Ottawa?
Currently, January is the cheapest month in which you can book a flight from London to Ottawa (average of £588). Flying from London to Ottawa in December is currently the most expensive (average of £875). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Fly from London to Ottawa on these airlines

Air Canada flights from London to Ottawa

Air Transat flights from London to Ottawa

Lufthansa flights from London to Ottawa

Alternative routes for London to Ottawa

Heathrow to Pearson Intl flights

Gatwick to Pearson Intl flights

Heathrow to Toronto Island flights

London City to Pearson Intl flights

Heathrow to Pierre Elliott Trudeau Intl flights

Luton to Pearson Intl flights

Stansted to Pearson Intl flights

Gatwick to Toronto Island flights

Manchester to Pearson Intl flights

London City to Pierre Elliott Trudeau Intl flights

Gatwick to Pierre Elliott Trudeau Intl flights

Edinburgh to Pearson Intl flights

Manchester to Toronto Island flights

Luton to Pierre Elliott Trudeau Intl flights

Heathrow to Ottawa flights

Stansted to Pierre Elliott Trudeau Intl flights

Edinburgh to Toronto Island flights

Gatwick to Ottawa flights

London City to Ottawa flights

Birmingham to Pearson Intl flights

Southend to Pearson Intl flights

Birmingham to Toronto Island flights

Bristol to Pearson Intl flights

Manchester to Pierre Elliott Trudeau Intl flights

Gatwick to London flights

Heathrow to London flights

Leeds to Pearson Intl flights

Newcastle upon Tyne to Pearson Intl flights

Edinburgh to Pierre Elliott Trudeau Intl flights

Southampton to Pearson Intl flights

London City to London flights

Heathrow to Windsor flights

Manchester to Ottawa flights

East Midlands to Pearson Intl flights

Heathrow to Thunder Bay flights

Stansted to Ottawa flights

Liverpool to Pearson Intl flights

Birmingham to Ottawa flights

Newcastle upon Tyne to Toronto Island flights

Birmingham to Pierre Elliott Trudeau Intl flights

Gatwick to Region of Waterloo Intl flights

Manchester to London flights

Top 7 airlines flying from London to Ottawa

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest£299	Average£423	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest£333	Average£348	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£346	Average£465	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air France	Cheapest£357	Average£451	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Virgin Atlantic	Cheapest£364	Average£439	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Air Transat	Cheapest£402	Average£477	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Lufthansa	Cheapest£446	Average£537	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

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How does Cheapflights help users find flights from London to Ottawa?

Cheapflights makes it easy to find London to Ottawa flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Ottawa?

Cheapflights helps you find that perfect flight to Ottawa from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Ottawa with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Ottawa flexibly with Cheapflights today.

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Not ready to book yet? You can track prices for flights from London to Ottawa on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from London to Ottawa from £252

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Ottawa are usually found in January or February, booked 90 days in advance, depart on a Monday or Friday and return on a Monday

Cheap flight deals from London to Ottawa

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Find flight deals from London to Ottawa

Cheapest flights from London to OttawaExplore the most affordable flight options available from London to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from London to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Ottawa that are best for you.

Best time to book a flight from London to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to Ottawa

How far ahead should I book a flight from London to Ottawa?

Use this chart to determine the optimal time to book a return flight from London to Ottawa. Price data was last updated on 12 September 2025.

What is the cheapest month to book a flight from London to Ottawa?

What is the cheapest time of day to fly from LON to YOW?

Find hourly flight availability from London to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

How much does it cost for a return flight from London to Ottawa?

What’s the top stopover airport for flights from London to Ottawa?

Share of one-stop return flights from London to Ottawa chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from London to Ottawa?

Average return fare for one-stop flights from London to Ottawa, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from London to Ottawa?

Shortest average travel time for one-stop one-way flights from London to Ottawa, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from London to Ottawa?

Average stopover duration for one-stop one-way flights from London to Ottawa, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Ottawa

Check out reviews from past customers who have flown with Air Transat, Air France, andVirgin Atlantic from London to Ottawa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Ottawa from London?

How long is the flight from London to Ottawa?

What are the cheapest airlines flying from London to Ottawa round-trip?

What are the cheapest airlines to fly from London to Ottawa one-way?

What are the most popular routes from London to Ottawa?

What are the most reliable airlines from London to Ottawa?

What are the cheapest flights from London to Ottawa?

Where are the most common stopover locations when flying from London to Ottawa?

What are some popular things to do or see while on a stopover in Paris?

Where are the least popular stopover locations for London to Ottawa flights?

Can I find deals for flights from London to Ottawa that include hotel bookings?

How can I find direct flights from London to Ottawa?

Can I find deals for business class flights from London to Ottawa?

What is the cheapest month to book a flight from London to Ottawa?

Travelling to a place near Ottawa?

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Fly from London to Ottawa on these airlines

Choose from the following airlines for your flight from London to Ottawa. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2025.

Top 7 airlines flying from London to Ottawa

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How does Cheapflights help users find flights from London to Ottawa?

Why should you use Cheapflights to find cheap flight tickets from London to Ottawa?

Can Cheapflights find flights from London to Ottawa with no change fees?

Can Cheapflights notify me if prices for flights from London to Ottawa become cheaper?

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Cheapest flights from London to Ottawa
Explore the most affordable flight options available from London to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.