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Cheap flights from the United Kingdom to Ottawa from £194

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 17/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
22 Mar — 29 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 20 February 2026.

Fri 19/612:40
LHR
-
YOW
1 stop10h 53m
Air Canada
Mon 29/618:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 18/2£402
Wed 20/512:40
LHR
-
YOW
2 stops14h 31m
Air Canada
Wed 27/510:00
YOW
-
LHR
1 stop15h 35m
Air Canada
Deal found 18/2£404
Fri 15/507:30
LHR
-
YOW
2 stops31h 33m
United Airlines
Sat 6/619:30
YOW
-
LHR
2 stops21h 05m
United Airlines
Deal found 20/2£405
Wed 29/412:40
LGW
-
YOW
1 stop17h 01m
Air Transat
Wed 7/1018:35
YOW
-
LGW
1 stop11h 10m
Air Transat
Deal found 20/2£405
Thu 18/607:25
LHR
-
YOW
2 stops31h 38m
United Airlines
Tue 30/614:48
YOW
-
LHR
2 stops14h 52m
United Airlines
Deal found 18/2£406
Fri 19/607:30
LHR
-
YOW
2 stops31h 33m
United Airlines
Mon 29/618:00
YOW
-
LHR
1 stop11h 25m
United Airlines
Deal found 18/2£407
Wed 10/606:55
LHR
-
YOW
2 stops21h 59m
United Airlines
Sat 20/606:00
YOW
-
LHR
1 stop19h 55m
United Airlines
Deal found 17/2£408
Wed 20/517:00
LGW
-
YOW
1 stop27h 00m
Air France
Wed 27/517:25
YOW
-
LGW
1 stop11h 00m
Air France
Deal found 18/2£408
Wed 25/209:00
LHR
-
YOW
1 stop10h 21m
Air Canada
Thu 7/516:00
YOW
-
LHR
1 stop9h 35m
Air Canada
Deal found 20/2£409
Wed 10/612:40
LHR
-
YOW
2 stops14h 31m
Air Canada
Sat 20/606:05
YOW
-
LHR
1 stop10h 30m
Air Canada
Deal found 20/2£410
Fri 19/612:40
LGW
-
YOW
1 stop16h 45m
Air Transat
Mon 29/618:35
YOW
-
LGW
1 stop11h 10m
Air Transat
Deal found 18/2£411
Sat 23/512:00
LHR
-
YOW
1 stop15h 05m
Air Canada
Wed 27/521:00
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 20/2£411

Find 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 20 February 2026.

Round-trip from

£402

One-way from

£194

Popular in

August

Cheapest in

May

Average price

£516

Good round-trip deal

£488 or less

Good one-way deal

£371 or less
Air Canada
  • Air Canada
  • 19/6-29/6
  • 1 total stop
  • 17h 28m total
  • United Kingdom to Ottawa
Search Deals
17/4
  • 17/4
  • 2 total stops
  • 30h 49m total
  • United Kingdom to Ottawa
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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

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 20 February 2026.
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

LHR - YOW

LHRYOW

London Heathrow

Fri 15/5

07:30-10:03

2 stops31h 33m

Ottawa

Sat 6/6

19:30-21:35

2 stops21h 05m

£405

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 18/6

07:25-10:03

2 stops31h 38m

Ottawa

Tue 30/6

06:00-21:35

1 stop10h 35m

£406

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 24/6

06:50-23:54

2 stops22h 04m

Ottawa

Sun 28/6

14:48-10:40

2 stops14h 52m

£408

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 27/6

12:40-08:05

1 stop24h 25m

Ottawa

Sat 4/7

07:00-07:55

1 stop19h 55m

£419

LondonOttawa

STN - YOW

STNYOW

London Stansted

Fri 15/5

22:00-00:20

3 stops31h 20m

Ottawa

Sat 6/6

18:25-21:35

2 stops22h 10m

£431

LondonOttawa

LCY - YOW

LCYYOW

London City

Tue 2/6

09:15-20:51

2 stops16h 36m

Ottawa

Tue 16/6

17:55-17:55

2 stops19h 00m

£434

LondonOttawa

LCY - YOW

LCYYOW

London City

Wed 10/6

09:15-19:46

2 stops15h 31m

Ottawa

Sat 20/6

14:25-17:55

2 stops22h 30m

£434

LondonOttawa

STN - YOW

STNYOW

London Stansted

Mon 11/5

06:30-00:20

2 stops22h 50m

Ottawa

Sat 23/5

18:25-21:35

2 stops22h 10m

£434

LondonOttawa

LCY - YOW

LCYYOW

London City

Fri 19/6

09:15-20:50

2 stops16h 35m

Ottawa

Tue 30/6

18:25-17:55

2 stops18h 30m

£435

LondonOttawa

STN - YOW

STNYOW

London Stansted

Wed 29/4

06:30-17:35

2 stops16h 05m

Ottawa

Wed 27/5

05:55-12:50

3 stops25h 55m

£435

Flights are sorted by cheapest return flights first.

Deals found on 17/2

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, March is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of £163). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of £379). 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 20 February 2026.

When flying from United Kingdom to Ottawa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

About 10% of weekly flights between United Kingdom and Ottawa have experienced delays in the past year, with the average delay time being 236 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 Friday 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 10% 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 20 February 2026.
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
7.7
Good
511 reviews
Check prices

Boarding

7.9

Crew

8.4

Entertainment

7.0

Overall

7.7

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.7
Good
511 reviews
Air Transat
7.7
Good
511 reviews
Check prices

Boarding

7.9

Crew

8.4

Entertainment

7.0

Overall

7.7

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Virgin Atlantic
7.5
Good
679 reviews
Air Transat
7.7
Good
511 reviews
Check prices

Boarding

7.9

Crew

8.4

Entertainment

7.0

Overall

7.7

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air France
7.4
Good
1,533 reviews
Air Transat
7.7
Good
511 reviews
Check prices

Boarding

7.9

Crew

8.4

Entertainment

7.0

Overall

7.7

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
10,734 reviews
Air Transat
7.7
Good
511 reviews
Check prices

Boarding

7.9

Crew

8.4

Entertainment

7.0

Overall

7.7

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Lufthansa
6.8
Okay
7,794 reviews
Air Transat
7.7
Good
511 reviews
Check prices

Boarding

7.9

Crew

8.4

Entertainment

7.0

Overall

7.7

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

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 16h 36m. United Airlines provides one of the quickest options available for as low as £434. Airlines will cover a distance of 3339 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?

    £198 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on WestJet and Virgin Atlantic, with prices starting from £280 and £290, 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: Air Canada (84%), Austrian Airlines (84%), SriLankan Airlines (84%).

  • 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 £572, our data indicates the cheapest price to be £387. The most popular route (London Heathrow - Ottawa), is priced around £384.

  • 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, March is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of £163). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of £379). 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
Brockville
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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London City to Ottawa flights
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Newcastle upon Tyne to Pearson Intl flights
Stansted to Ottawa flights
Manchester to Pierre Elliott Trudeau Intl flights
Birmingham to Toronto Island flights
Charles de Gaulle to Pierre Elliott Trudeau Intl flights
Leeds to Pearson Intl flights
Heathrow to London flights
Dublin to Toronto Island flights
Edinburgh to Pierre Elliott Trudeau Intl flights
Glasgow Intl to Pierre Elliott Trudeau Intl flights
Heathrow to Windsor flights
Southampton to Pearson Intl flights
Lisbon to Pierre Elliott Trudeau Intl flights
Belfast Intl to Pearson Intl flights
Newcastle upon Tyne to Pierre Elliott Trudeau Intl flights
Belfast City to Pearson Intl 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 20 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£303Average£555FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£335Average£351FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£350Average£562FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£368Average£596FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£373Average£632FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air TransatCheapest£427Average£541FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapest£453Average£529FlexibilityNo 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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