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Cheap flights from the United Kingdom to Ottawa from £280

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Ottawa

Keep the following information in mind while searching for United Kingdom to Ottawa flight deals. Data was last updated 11 November 2025.

Round-trip from

£481

One-way from

£280

Popular in

August

Cheapest in

January

Average price

£520

Good round-trip deal

£513 or less

Good one-way deal

£6,340 or less
21/4-26/4
  • 21/4-26/4
  • 3 total stops
  • 40h 21m total
  • United Kingdom to Ottawa
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 15/2
  • 1 total stop
  • 11h 15m total
  • United Kingdom to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to Ottawa.
Search Deals
Price to beat on a one-way flight from United Kingdom to Ottawa.
Search Deals

Find flight deals from United Kingdom to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Ottawa
Explore the most affordable flight options available from United Kingdom to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 November 2025.

Fri 14/1112:00LHR - YOW
Nonstop7h 30mAir Canada
Sun 23/1108:30YOW - LHR
2 stops17h 40mAir Canada
Deal found 10/11£479
Sat 15/1111:10LHR - YOW
1 stop11h 08mAir Canada
Sun 30/1114:05YOW - LHR
2 stops36h 05mAir Canada
Deal found 9/11£480
Thu 27/1111:40LGW - YOW
1 stop11h 44mAir Transat
Fri 28/1118:55YOW - LGW
1 stop9h 50mAir Transat
Deal found 10/11£482
Thu 13/1106:00LHR - YOW
2 stops24h 38mMultiple Airlines
Sun 30/1121:55YOW - LHR
Nonstop6h 25mMultiple Airlines
Deal found 9/11£483
Mon 8/1206:50LHR - YOW
2 stops15h 50mAir Canada
Mon 15/1209:15YOW - LHR
2 stops16h 25mAir Canada
Deal found 10/11£484
Fri 14/1113:25LHR - YOW
2 stops17h 13mAir Canada
Sat 29/1110:30YOW - LHR
2 stops15h 40mAir Canada
Deal found 9/11£485
Sat 15/1113:25LHR - YOW
1 stop13h 53mAir Canada
Thu 20/1120:25YOW - LHR
2 stops19h 10mAir Canada
Deal found 10/11£487
Fri 14/1113:25LHR - YOW
2 stops17h 13mAir Canada
Mon 1/1212:05YOW - LHR
2 stops14h 05mAir Canada
Deal found 9/11£489
Thu 13/1111:40LGW - YOW
1 stop11h 44mAir Transat
Sat 29/1106:45YOW - LGW
1 stop22h 00mAir Transat
Deal found 9/11£491
Fri 21/1109:00LHR - YOW
1 stop30h 06mAir Canada
Wed 28/110:20YOW - LHR
2 stops15h 50mAir Canada
Deal found 10/11£494
Sun 16/1118:00LHR - YOW
1 stop12h 38mAir Canada
Mon 1/1210:20YOW - LHR
2 stops15h 50mAir Canada
Deal found 9/11£498
Fri 14/1111:40LGW - YOW
1 stop11h 44mAir Transat
Sun 30/1106:45YOW - LGW
1 stop22h 00mAir Transat
Deal found 9/11£510

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 858,174 searches. Data last updated 11 November 2025.
Use the filters below to find and compare flights from the United Kingdom to Ottawa that are best for you.

Fly from

United Kingdom

Fly to

Ottawa

Route

Depart

Return

Price

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 27/11

11:40-18:24

1 stop11h 44m

Ottawa

Fri 28/11

18:55-09:45

1 stop9h 50m

£482

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sun 8/3

11:40-00:41

1 stop17h 01m

Ottawa

Wed 24/6

17:05-10:45

1 stop12h 40m

£486

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 21/11

12:00-14:30

Nonstop7h 30m

Ottawa

Wed 28/1

10:20-07:10

2 stops15h 50m

£494

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 11/3

13:25-08:18

2 stops22h 53m

Ottawa

Sun 15/3

14:50-07:10

1 stop12h 20m

£501

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 30/4

12:40-00:41

1 stop17h 01m

Ottawa

Wed 13/5

11:20-10:45

1 stop18h 25m

£503

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 30/4

12:40-00:41

1 stop17h 01m

Ottawa

Fri 15/5

11:20-10:45

1 stop18h 25m

£503

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 28/4

12:40-00:41

1 stop17h 01m

Ottawa

Sun 17/5

11:20-10:45

1 stop18h 25m

£503

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 2/5

12:40-20:01

1 stop12h 21m

Ottawa

Thu 14/5

11:20-07:55

1 stop15h 35m

£503

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 3/5

09:30-21:51

2 stops17h 21m

Ottawa

Sat 16/5

21:00-08:35

Nonstop6h 35m

£507

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 29/4

18:00-00:22

1 stop11h 22m

Ottawa

Fri 15/5

17:15-10:30

1 stop12h 15m

£511

Flights are sorted by cheapest return flights first.

Deals found on 8/11

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from United Kingdom 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 the United Kingdom to Ottawa

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

Currently, February is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of £98). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of £392). 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 GB to YOW?

Find hourly flight availability from United Kingdom 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 11 November 2025.

One of the essential ways to save on airfare from United Kingdom to Ottawa is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 17% on airfare.

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 11 November 2025.
Check out reviews from past customers who have flown with Air Transat, Virgin Atlantic, andAir France from the United Kingdom 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
7.8
Good
470 reviews
Check prices

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Comfort

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Transat
7.8
Good
470 reviews
Air Transat
7.8
Good
470 reviews
Check prices

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Comfort

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Virgin Atlantic
7.5
Good
673 reviews
Air Transat
7.8
Good
470 reviews
Check prices

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Comfort

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air France
7.4
Good
1,486 reviews
Air Transat
7.8
Good
470 reviews
Check prices

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Comfort

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Canada
7.1
Good
10,431 reviews
Air Transat
7.8
Good
470 reviews
Check prices

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Comfort

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Lufthansa
6.8
Okay
7,564 reviews
Air Transat
7.8
Good
470 reviews
Check prices

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Comfort

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom?

    If you book a flight to Ottawa from United Kingdom, 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.

  • How long is the flight from United Kingdom to Ottawa?

    A quick flight from United Kingdom to Ottawa can take about 7h 30m. Air Transat provides one of the quickest options available for as low as £494. Airlines will cover a distance of 3320 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from United Kingdom to Ottawa one-way?

    £280 is the cheapest one-way deal found within the past few days, from Virgin Atlantic. You may also be able to find cheap deals on Air France and KLM, with prices starting from £299 and £317, respectively.

  • What are the most popular routes from United Kingdom to Ottawa?

    While some choose either London Gatwick - Ottawa or London City - Ottawa, London Heathrow - Ottawa is the most popular route from United Kingdom to Ottawa.

  • What are the most reliable airlines from United Kingdom to Ottawa?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from United Kingdom to Ottawa on time: United Airlines (97%), Air Canada (94%), Aegean Airlines (94%).

  • What are the cheapest flights from United Kingdom to Ottawa?

    Looking for the cheapest flight from United Kingdom to Ottawa? While on average our users pay £2,949, our data indicates the cheapest price to be £405. The most popular route (London Heathrow - Ottawa), is priced around £463.

  • Can I find deals for flights from United Kingdom to Ottawa that include hotel bookings?

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

  • How can I find direct flights from United Kingdom to Ottawa?

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

  • Can I find deals for business class flights from United Kingdom to Ottawa?

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Ottawa?

    Currently, February is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of £98). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of £392). 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.

See more FAQs

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Smiths Falls

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Alternative routes for United Kingdom to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from United Kingdom to Ottawa

Discover the top 7 airlines that operate flights from United Kingdom 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 858,174 searches. Data last updated 11 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£310Average£569FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£342Average£359FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£358Average£569FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£370Average£612FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£377Average£583FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air TransatCheapest£416Average£541FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapest£463Average£553FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Ottawa?

When you search for this flight from United Kingdom to Ottawa, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to Ottawa for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from United Kingdom to Ottawa with no change fees.

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

Of course! You can now track prices for flights from United Kingdom to Ottawa and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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