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Cheap flights from London to Ottawa from £275

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight to Ottawa departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LON — YOW
4 Mar — 11 Mar1
1 adult
Mon 4/3
Mon 11/3

The best prices from London to Ottawa are usually found in February or November, booked 71 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from London to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 February 2024.

Popular in

July

Cheapest in

February

Round-trip from

£363

One-way from

£356
High demand for flights, 24% potential price rise
Best time to find cheap flights, 15% potential price drop
From London (LON) to Ottawa
One-way flight from London (LON) to Ottawa

What is the cheapest day to fly round-trip from London to Ottawa?

Saturday flights are generally found to be more expensive for flights from London to Ottawa. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ottawa.

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

Users have found that booking a flight from London to Ottawa at least 44 days early can save you up to 43% on average compared to booking a flight this week. If booking 44 days before your flight isn’t an option for you, users have found flights from London to Ottawa for as little as £557 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £724 for flights departing within the next 3 days.

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

Our data shows that February tends to be the cheapest month to fly to Ottawa from London. Users have commonly found prices around £611 for the month, but tickets can be as low as £416. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from London to Ottawa (LON - YOW)?

It’s typically best to fly out from London to Ottawa in the afternoon. Doing so could potentially save you 9% on the flight price compared to flying in the evening, which is usually more expensive.

Cheap Air Canada flights from London to Ottawa

Explore cheap flight options specifically provided by Air Canada for the route between London and Ottawa. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 934,324 searches. Data last updated 29 February 2024.
Check out some of the cheapest Air Canada flights we've come across from London to Ottawa. Come back soon if you're not finding the exact deal you're looking for.
Wed 17/409:30LHR - YOW
1 stop14h 27mAir Canada
Sat 20/419:55YOW - LHR
1 stop29h 35mAir Canada
Deal found 28/2£499
Fri 15/316:20LHR - YOW
1 stop25h 50mAir Canada
Sat 16/319:45YOW - LHR
1 stop31h 25mAir Canada
Deal found 28/2£533
Sat 25/518:00LHR - YOW
1 stop12h 32mAir Canada
Sat 1/611:00YOW - LHR
1 stop14h 30mAir Canada
Deal found 27/2£542
Tue 12/312:00LHR - YOW
1 stop13h 22mAir Canada
Mon 18/312:30YOW - LHR
1 stop14h 40mAir Canada
Deal found 27/2£544
Tue 20/818:00LHR - YOW
1 stop12h 33mAir Canada
Wed 4/921:00YOW - LHR
1 stop9h 50mAir Canada
Deal found 27/2£550
Mon 10/612:40LHR - YOW
1 stop9h 59mAir Canada
Tue 25/613:10YOW - LHR
1 stop12h 20mAir Canada
Deal found 28/2£580
Mon 17/618:00LHR - YOW
1 stop10h 42mAir Canada
Thu 27/611:00YOW - LHR
1 stop14h 30mAir Canada
Deal found 28/2£585
Mon 10/612:40LHR - YOW
1 stop9h 59mAir Canada
Sat 15/620:55YOW - LHR
1 stop28h 35mAir Canada
Deal found 28/2£585
Mon 17/618:00LHR - YOW
1 stop10h 42mAir Canada
Mon 1/719:00YOW - LHR
1 stop9h 35mAir Canada
Deal found 28/2£589

Cheap Air Transat flights from London to Ottawa

Explore cheap flight options specifically provided by Air Transat for the route between London and Ottawa. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 934,324 searches. Data last updated 29 February 2024.
Take a gander at the lowest prices we've found on Air Transat flights from London to Ottawa. Ensure the flight price, dates, time, and airline match your criteria before you book.
Mon 24/609:40LGW - YOW
1 stop19h 47mAir Transat
Sun 7/708:10YOW - LGW
1 stop21h 35mAir Transat
Deal found 27/2£463
Thu 13/610:05LGW - YOW
1 stop12h 48mAir Transat
Thu 27/618:50YOW - LGW
1 stop10h 55mAir Transat
Deal found 28/2£469
Thu 13/610:05LGW - YOW
1 stop12h 48mAir Transat
Thu 27/618:50YOW - LGW
1 stop10h 55mAir Transat
Deal found 28/2£473
Tue 7/509:40LGW - YOW
1 stop19h 48mAir Transat
Fri 24/516:10YOW - LGW
1 stop13h 35mAir Transat
Deal found 27/2£479
Mon 6/512:40LGW - YOW
1 stop16h 48mAir Transat
Fri 24/511:55YOW - LGW
1 stop17h 50mAir Transat
Deal found 27/2£481
Wed 8/512:40LGW - YOW
1 stop24h 23mAir Transat
Sun 12/520:54YOW - LGW
1 stop29h 26mAir Transat
Deal found 27/2£486
Tue 11/609:40LGW - YOW
1 stop13h 13mAir Transat
Mon 24/618:50YOW - LGW
1 stop10h 55mAir Transat
Deal found 28/2£488
Wed 12/612:40LGW - YOW
1 stop16h 47mAir Transat
Tue 17/911:55YOW - LGW
1 stop14h 25mAir Transat
Deal found 27/2£505
Mon 6/512:40LGW - YOW
1 stop16h 48mAir Transat
Sat 25/516:10YOW - LGW
1 stop13h 35mAir Transat
Deal found 28/2£506

Cheap London to Ottawa flights in February & March 2024

Find cheap flight options from London to Ottawa specifically for the months of February and March 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 934,324 searches. Prices were last updated on 29 February 2024.
These are some of the most attractive deals on flights from London to Ottawa in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 12/308:55LHR - YOW
2 stops19h 25mMultiple Airlines
Mon 18/318:15YOW - LHR
1 stop20h 05mMultiple Airlines
Deal found 27/2£527
Fri 15/316:20LHR - YOW
1 stop25h 50mAir Canada
Sat 16/319:45YOW - LHR
1 stop31h 25mAir Canada
Deal found 28/2£533
Tue 12/316:00LHR - YOW
2 stops36h 20mKLM
Sat 23/306:00YOW - LHR
2 stops44h 40mKLM
Deal found 27/2£543
Tue 12/312:00LHR - YOW
1 stop13h 22mAir Canada
Mon 18/312:30YOW - LHR
1 stop14h 40mAir Canada
Deal found 27/2£544
Tue 12/308:55LHR - YOW
2 stops19h 25mKLM
Mon 18/318:15YOW - LHR
2 stops15h 35mKLM
Deal found 27/2£547
Tue 19/310:45LHR - YOW
2 stops17h 35mMultiple Airlines
Tue 2/417:00YOW - LHR
1 stop10h 00mMultiple Airlines
Deal found 28/2£562
Tue 12/318:00LHR - YOW
1 stop20h 22mLufthansa
Sat 23/319:45YOW - LHR
1 stop31h 25mLufthansa
Deal found 27/2£563
Tue 19/312:00LHR - YOW
1 stop14h 02mAir Canada
Tue 2/407:00YOW - LHR
1 stop9h 00mAir Canada
Deal found 28/2£574
Tue 12/315:00LHR - YOW
1 stop12h 15mAir Canada
Sat 23/315:00YOW - LHR
2 stops12h 10mAir Canada
Deal found 27/2£593

London to Ottawa 2024 flight deals

Discover exclusive flight deals for travel between London and Ottawa in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 934,324 searches. Data last updated 29 February 2024.
These are some of the most attractive deals on flights from London to Ottawa in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sun 14/406:15LHR - YOW
1 stop13h 35mVirgin Atlantic
Sun 21/417:00YOW - LHR
1 stop18h 35mVirgin Atlantic
Deal found 28/2£420
Sun 14/406:30LHR - YOW
2 stops13h 20mMultiple Airlines
Sun 21/417:00YOW - LHR
1 stop15h 45mMultiple Airlines
Deal found 28/2£439
Fri 28/609:00LHR - YOW
1 stop10h 50mAir France
Mon 15/717:00YOW - LHR
1 stop20h 35mAir France
Deal found 28/2£445
Fri 28/612:40LGW - YOW
1 stop16h 47mAir Transat
Mon 15/718:50YOW - LGW
1 stop10h 55mAir Transat
Deal found 28/2£463
Fri 28/606:30LHR - YOW
2 stops13h 20mMultiple Airlines
Mon 15/717:00YOW - LHR
1 stop20h 35mMultiple Airlines
Deal found 28/2£466
Tue 17/912:40LGW - YOW
1 stop16h 47mAir Transat
Sun 22/918:50YOW - LGW
1 stop10h 55mAir Transat
Deal found 28/2£468
Thu 13/610:05LGW - YOW
1 stop12h 48mAir Transat
Thu 27/618:50YOW - LGW
1 stop10h 55mAir Transat
Deal found 28/2£469
Thu 13/610:05LGW - YOW
1 stop12h 48mAir Transat
Thu 27/618:50YOW - LGW
1 stop10h 55mAir Transat
Deal found 28/2£473
Sun 13/1012:40LGW - YOW
1 stop16h 47mAir Transat
Fri 18/1008:10YOW - LGW
1 stop21h 35mAir Transat
Deal found 28/2£479

One-way flights to Ottawa from London

Search for one-way flight options from London to Ottawa. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 934,324 searches. Data last updated 29 February 2024.
If you're seeking multiple options on one-way flights from London to Ottawa, be sure to check out these deals, which are updated often. Users can also find round-trip London to Ottawa flights by using the search form above.
Tue 4/608:20LHR - YOW
2 stops21h 07mMultiple Airlines
Deal found 28/2£275
Tue 4/606:45LCY - YOW
2 stops22h 42mMultiple Airlines
Deal found 28/2£294
Sat 13/407:40LHR - YOW
2 stops16h 15mMultiple Airlines
Deal found 27/2£308
Wed 31/706:55LHR - YOW
2 stops22h 32mMultiple Airlines
Deal found 26/2£313
Sat 13/407:40LHR - YOW
2 stops21h 39mMultiple Airlines
Deal found 27/2£322
Sat 13/406:40LGW - YOW
3 stops42h 14mMultiple Airlines
Deal found 27/2£327
Sat 27/421:00LHR - YOW
2 stops31h 50mMultiple Airlines
Deal found 27/2£329
Wed 20/307:55LGW - YOW
2 stops31h 45mMultiple Airlines
Deal found 28/2£332
Fri 26/706:45LHR - YOW
2 stops22h 42mMultiple Airlines
Deal found 26/2£334

Find flights from London to Ottawa within your budget

Customise your flight search to find flights from London to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 934,324 searches. Data last updated 29 February 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£420 - £642

Route

Depart

Return

Price

London HeathrowOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 14/4

1 stop13h 35m

Ottawa

Sun 21/4

1 stop10h 00m

£420

London HeathrowOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 14/4

2 stops13h 20m

Ottawa

Sun 21/4

1 stop18h 35m

£439

London HeathrowOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 28/6

1 stop10h 50m

Ottawa

Mon 15/7

1 stop20h 35m

£445

London GatwickOttawa

LGW - YOW

LGWYOW

London Gatwick

Mon 24/6

1 stop19h 47m

Ottawa

Sun 7/7

1 stop21h 35m

£463

London HeathrowOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 17/4

1 stop14h 27m

Ottawa

Sat 20/4

1 stop29h 35m

£499

London HeathrowOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 14/4

2 stops13h 20m

Ottawa

Sun 21/4

2 stops12h 45m

£510

London HeathrowOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 8/5

1 stop8h 57m

Ottawa

Sun 12/5

1 stop30h 50m

£537

London HeathrowOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 6/5

2 stops29h 17m

Ottawa

Fri 24/5

2 stops30h 15m

£594

London HeathrowOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 27/6

2 stops20h 26m

Ottawa

Thu 4/7

1 stop9h 56m

£642

Flights are sorted by cheapest first

Deals found on 27/2

When is the best time to 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 28 January 2024.
To ensure you get the cheapest price possible for a flight from London to Ottawa, you should look to book at least 71 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.
Search Deals

When is the cheapest time to fly from London to Ottawa?

Use this chart to determine the cheapest time to fly return from London to Ottawa. Price data was last updated on 25 February 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London to Ottawa flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Ottawa by month

Plan your trip from London to Ottawa by taking into account the cheapest months to travel. The average price of a one-way flight from London to Ottawa is currently £315 while a return flight costs £505. Price data was last updated on 25 February 2024.

Currently, January is the cheapest month in which you can book a flight from London to Ottawa (average of £582). Flying from London to Ottawa in August is currently the most expensive (average of £819). 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.

January

£460

February

£476

March

£552

April

£537

May

£537

June

£579

July

£630

August

£647

September

£569

October

£582

November

£479

December

£581

Temperature and rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature and rainfall totals by month.

YOW

Temperature

-10 - 21 °C

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated 29 February 2024.
Read reviews from past customers who have flown Air Canada, Air Transat and SWISS from London to Ottawa. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
7.8
Good
1,763 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.3

Overall

7.8

Food

7.3

Comfort

7.6

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.8
Good
1,763 reviews
7.8
Good
1,763 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.3

Overall

7.8

Food

7.3

Comfort

7.6

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.8
Good
2,255 reviews
7.8
Good
1,763 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.3

Overall

7.8

Food

7.3

Comfort

7.6

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.8
Good
769 reviews
7.8
Good
1,763 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.3

Overall

7.8

Food

7.3

Comfort

7.6

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.6
Good
1,965 reviews
7.8
Good
1,763 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.3

Overall

7.8

Food

7.3

Comfort

7.6

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.5
Good
3,956 reviews
7.8
Good
1,763 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.3

Overall

7.8

Food

7.3

Comfort

7.6

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

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?

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 0 flights from London to Ottawa per day from 7 different airlines.

Can I find flights from London to Ottawa for under £500 on Cheapflights?

Yes, there are multiple flights from London to Ottawa for under £500. The cheapest flight booked recently is on Virgin Atlantic for just £420, but on average you can expect to pay £475.

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

Virgin Atlantic, at £420, was found to be the cheapest airline from London to Ottawa.Alternate airlines flying return to your destination include Air France and Air Transat. Users have found that Virgin Atlantic is 31% cheaper than the other options available to this destination.

What are the most popular routes from London to Ottawa?

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

What does LHR to YOW mean?

LHR and YOW are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. LHR to YOW refers to a flight route from London Heathrow Airport to Ottawa Airport. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

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 Toronto?

Most Toronto visitors opt to spend their time experiencing Union Station, CN Tower, and Yonge-Dundas Square. Union Station, CN Tower and Yonge-Dundas Square are located about 12.1 mi, 11.9 mi, and 12.0 mi, respectively from Toronto Pearson Intl if you are interested in checking them out. Those landing in Toronto looking to spend some time exploring during their stopover can hire a car for about £41 per day.

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 29 February 2024.

Top 7 airlines flying from London to Ottawa

Discover the top 7 airlines that operate flights from London to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 934,324 searches. Data last updated 29 February 2024.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest£327Average£470FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Virgin AtlanticCheapest£363Average£473FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£365Average£471FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£424Average£565FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapest£491