Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from the United Kingdom to Ottawa from £239

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
25 Dec — 1 Jan1
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 25 November 2025.

Round-trip from

£489

One-way from

£239

Popular in

August

Cheapest in

January

Average price

£527

Good round-trip deal

£520 or less

Good one-way deal

£530 or less
Air Transat
  • Air Transat
  • 21/1-31/1
  • 2 total stops
  • 30h 33m total
  • United Kingdom to Ottawa
Search Deals
14/1
  • 14/1
  • 2 total stops
  • 49h 08m total
  • United Kingdom to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£62 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 25 November 2025.

Tue 9/1213:25LHR - YOW
2 stops25h 21mAir Canada
Thu 26/216:40YOW - LHR
1 stop22h 55mAir Canada
Deal found 23/11£489
Wed 24/1219:25LHR - YOW
1 stop24h 45mAir France
Tue 13/117:20YOW - LHR
1 stop9h 40mAir France
Deal found 23/11£492
Fri 26/1209:00LHR - YOW
1 stop10h 21mAir Canada
Tue 13/118:05YOW - LHR
2 stops32h 05mAir Canada
Deal found 23/11£497
Tue 9/1209:00LHR - YOW
2 stops13h 42mMultiple Airlines
Tue 17/316:15YOW - LHR
1 stop10h 15mMultiple Airlines
Deal found 23/11£498
Thu 27/1109:00LHR - YOW
2 stops13h 40mMultiple Airlines
Mon 5/118:05YOW - LHR
1 stop31h 25mMultiple Airlines
Deal found 24/11£502
Thu 25/1211:40LGW - YOW
1 stop11h 45mAir Transat
Mon 12/118:55YOW - LGW
1 stop9h 50mAir Transat
Deal found 24/11£502
Thu 25/1206:50LHR - YOW
2 stops15h 00mAir Canada
Mon 12/111:20YOW - LHR
2 stops14h 50mAir Canada
Deal found 24/11£504
Thu 25/1206:50LHR - YOW
2 stops15h 00mAir Canada
Tue 13/111:20YOW - LHR
2 stops14h 50mAir Canada
Deal found 23/11£505
Wed 24/1212:00LHR - YOW
Nonstop7h 30mAir Canada
Tue 13/114:50YOW - LHR
1 stop11h 20mAir Canada
Deal found 23/11£505
Wed 3/1209:30LHR - YOW
2 stops14h 08mMultiple Airlines
Wed 24/1216:40YOW - LHR
1 stop22h 55mMultiple Airlines
Deal found 23/11£508
Thu 4/1209:30LHR - YOW
2 stops14h 08mMultiple Airlines
Fri 6/210:20YOW - LHR
1 stop15h 10mMultiple Airlines
Deal found 24/11£509
Thu 27/1109:00LHR - YOW
2 stops13h 40mAir Canada
Mon 5/119:55YOW - LHR
1 stop30h 15mAir Canada
Deal found 24/11£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 25 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

Wed 11/2

11:40-18:28

1 stop11h 48m

Ottawa

Fri 20/2

06:45-09:45

1 stop22h 00m

£491

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Fri 6/2

11:40-18:28

1 stop11h 48m

Ottawa

Mon 23/2

06:45-09:45

1 stop22h 00m

£491

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Mon 9/2

11:40-18:28

1 stop11h 48m

Ottawa

Sun 22/2

06:45-09:45

1 stop22h 00m

£491

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 10/2

11:40-18:28

1 stop11h 48m

Ottawa

Thu 19/2

06:45-09:45

1 stop22h 00m

£491

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 28/2

11:40-08:25

1 stop25h 45m

Ottawa

Mon 9/3

06:45-09:45

1 stop23h 00m

£491

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 12/2

11:40-18:28

1 stop11h 48m

Ottawa

Wed 18/2

06:45-09:45

1 stop22h 00m

£491

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 7/1

14:30-00:42

1 stop15h 12m

Ottawa

Wed 14/1

17:35-10:30

1 stop11h 55m

£502

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 28/2

09:00-21:18

2 stops17h 18m

Ottawa

Sun 8/3

17:55-21:20

1 stop23h 25m

£520

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 28/2

08:00-21:18

2 stops18h 18m

Ottawa

Tue 3/3

14:15-11:05

2 stops15h 50m

£540

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 28/2

08:00-21:18

2 stops18h 18m

Ottawa

Wed 4/3

15:15-10:50

2 stops14h 35m

£540

Flights are sorted by cheapest return flights first.

Deals found on 23/11

Showing 1-10 of 60 results
1
2
3
...
6

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 £396). 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 25 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.

How often are flights from the United Kingdom to Ottawa delayed?

About 9% of weekly flights between United Kingdom and Ottawa have experienced delays in the past year, with the average delay time being 231 minutes.

What is the most punctual flight time for the United Kingdom to Ottawa flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Ottawa flights?

Over the past year, Air Canada have had the lowest number of delays on this route, with just 9% of flights being delayed.

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 25 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
478 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Comfort

7.3

Crew

8.4

Overall

7.8

Food

6.8

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
478 reviews
Air Transat
7.8
Good
478 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Comfort

7.3

Crew

8.4

Overall

7.8

Food

6.8

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
675 reviews
Air Transat
7.8
Good
478 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Comfort

7.3

Crew

8.4

Overall

7.8

Food

6.8

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
1,497 reviews
Air Transat
7.8
Good
478 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Comfort

7.3

Crew

8.4

Overall

7.8

Food

6.8

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
10,469 reviews
Air Transat
7.8
Good
478 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Comfort

7.3

Crew

8.4

Overall

7.8

Food

6.8

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
7,589 reviews
Air Transat
7.8
Good
478 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Comfort

7.3

Crew

8.4

Overall

7.8

Food

6.8

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 11h 48m. Air Transat provides one of the quickest options available for as low as £491. Airlines will cover a distance of 3340 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?

    £279 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 £300 and £332, 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 (93%), Austrian Airlines (93%).

  • 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 £2,964, our data indicates the cheapest price to be £407. The most popular route (London Heathrow - Ottawa), is priced around £443.

  • 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 £396). 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

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.

Alternative routes for United Kingdom to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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
Stansted to Pearson Intl flights
Luton to Pearson Intl flights
Gatwick to Toronto Island flights
Gatwick to Pierre Elliott Trudeau Intl flights
London City to Pierre Elliott Trudeau Intl flights
Manchester to Pearson Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Luton to Pierre Elliott Trudeau Intl flights
Heathrow to Ottawa flights
Manchester to Toronto Island flights
Edinburgh to Pearson Intl flights
Gatwick to Ottawa flights
Glasgow Intl to Pearson Intl flights
London City to Ottawa flights
Birmingham to Pearson Intl flights
Edinburgh to Toronto Island flights
Heathrow to London flights
Southend to Pearson Intl flights
Birmingham to Toronto Island flights
Dublin to Pearson Intl flights
Cardiff to Pearson Intl flights
Glasgow Intl to Pierre Elliott Trudeau Intl flights
Dublin to Toronto Island flights
Newcastle upon Tyne to Pearson Intl flights
Lisbon to Pearson Intl flights
Manchester to Ottawa flights
Manchester to Pierre Elliott Trudeau Intl flights
Southampton to Pearson Intl flights
Leeds to Pearson Intl flights
Stansted to Ottawa flights
Edinburgh to Pierre Elliott Trudeau Intl flights
Amsterdam to Pearson Intl flights
Frankfurt to Pierre Elliott Trudeau Intl flights
Liverpool to Pearson Intl flights
Bristol to Pearson Intl flights
Gatwick to London flights

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 25 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£312Average£572FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£344Average£361FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£360Average£571FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£371Average£615FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£379Average£586FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air TransatCheapest£418Average£544FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapest£465Average£555FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.