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Cheap flights from the United Kingdom to Ottawa from C$ 348

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
17 May — 24 May1
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 17 April 2026.

Fri 4/99:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Fri 18/97:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Deal found 13/4C$ 645
Fri 29/59:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Fri 5/64:00 p.m.
YOW
-
LGW
1 stop13h 45m
Air Transat
Deal found 14/4C$ 654
Fri 5/69:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Fri 19/67:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Deal found 16/4C$ 656
Tue 2/612:40 p.m.
LGW
-
YOW
1 stop24h 25m
Air Transat
Tue 9/62:15 p.m.
YOW
-
LGW
1 stop14h 35m
Air Transat
Deal found 17/4C$ 657
Sun 24/59:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Mon 25/58:40 a.m.
YOW
-
LGW
1 stop21h 05m
Air Transat
Deal found 15/4C$ 658
Tue 9/612:40 p.m.
LGW
-
YOW
1 stop16h 45m
Air Transat
Tue 16/62:15 p.m.
YOW
-
LGW
1 stop14h 35m
Air Transat
Deal found 14/4C$ 661
Sun 14/69:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Fri 19/67:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Deal found 15/4C$ 662
Sat 6/612:40 p.m.
LGW
-
YOW
1 stop24h 25m
Air Transat
Sat 13/68:40 a.m.
YOW
-
LGW
1 stop21h 05m
Air Transat
Deal found 17/4C$ 664
Fri 15/59:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Mon 25/51:55 p.m.
YOW
-
LGW
1 stop15h 50m
Air Transat
Deal found 14/4C$ 665
Fri 15/59:40 a.m.
LGW
-
YOW
Nonstop8h 00m
Air Transat
Fri 22/57:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Deal found 14/4C$ 667
Sat 16/59:40 a.m.
LGW
-
YOW
1 stop15h 20m
Air Transat
Fri 22/57:40 p.m.
YOW
-
LGW
Nonstop7h 15m
Air Transat
Deal found 12/4C$ 668
Tue 12/510:00 p.m.
STN
-
YOW
3 stops31h 20m
Multiple Airlines
Tue 19/56:55 a.m.
YOW
-
STN
2 stops25h 30m
Multiple Airlines
Deal found 14/4C$ 671

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 17 April 2026.

Round-trip from

C$ 645

One-way from

C$ 348

Popular in

December

Cheapest in

June

Average price

C$ 1,036

Good round-trip deal

C$ 1,058 or less

Good one-way deal

C$ 978 or less
Air Transat
  • Air Transat
  • 4/9-18/9
  • Nonstop
  • 15h 15m total
  • United Kingdom to Ottawa
Search Deals
6/5
  • 6/5
  • 3 total stops
  • 31h 20m total
  • United Kingdom to Ottawa
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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

 
Customize 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 629,999 searches. Data last updated 17 April 2026.
Use the filters below to find and compare flights from the United Kingdom to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonOttawa

STN - YOW

STNYOW

London Stansted

Wed 13/5

10:00 p.m.-12:20 a.m.

3 stops31h 20m

Ottawa

Tue 26/5

6:25 p.m.-10:40 p.m.

2 stops23h 15m

C$ 673

LondonOttawa

STN - YOW

STNYOW

London Stansted

Tue 2/6

10:00 p.m.-12:20 a.m.

3 stops31h 20m

Ottawa

Tue 9/6

6:25 p.m.-10:40 p.m.

2 stops23h 15m

C$ 678

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 16/5

9:40 a.m.-8:00 p.m.

1 stop15h 20m

Ottawa

Mon 1/6

4:00 p.m.-7:55 a.m.

1 stop10h 55m

C$ 706

LondonOttawa

STN - YOW

STNYOW

London Stansted

Wed 17/6

10:00 p.m.-12:20 a.m.

3 stops31h 20m

Ottawa

Wed 15/7

6:55 a.m.-8:30 p.m.

2 stops32h 35m

C$ 732

LondonOttawa

STN - YOW

STNYOW

London Stansted

Thu 14/5

6:30 a.m.-12:20 a.m.

3 stops22h 50m

Ottawa

Thu 21/5

6:25 p.m.-10:25 p.m.

2 stops23h 00m

C$ 753

LondonOttawa

STN - YOW

STNYOW

London Stansted

Mon 1/6

10:45 p.m.-5:35 p.m.

2 stops23h 50m

Ottawa

Mon 8/6

6:55 a.m.-5:05 p.m.

2 stops29h 10m

C$ 758

LondonOttawa

STN - YOW

STNYOW

London Stansted

Fri 15/5

10:00 p.m.-12:20 a.m.

3 stops31h 20m

Ottawa

Fri 22/5

6:25 p.m.-7:20 p.m.

2 stops19h 55m

C$ 771

LeedsOttawa

LBA - YOW

LBAYOW

Leeds/Bradford

Wed 13/5

6:00 a.m.-12:20 a.m.

3 stops23h 20m

Ottawa

Wed 20/5

6:55 a.m.-12:35 a.m.

3 stops36h 40m

C$ 774

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 29/5

8:40 a.m.-11:54 p.m.

2 stops20h 14m

Ottawa

Fri 5/6

3:10 p.m.-7:15 a.m.

1 stop11h 05m

C$ 779

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 1/6

6:50 a.m.-4:38 p.m.

2 stops14h 48m

Ottawa

Mon 22/6

6:05 a.m.-8:40 p.m.

1 stop9h 35m

C$ 790

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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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 round-trip 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, October is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of C$ 119). Flying from United Kingdom to Ottawa in August is currently the most expensive (average of C$ 3,359). 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 17 April 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Ottawa as you normally would.

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

About 11% of weekly flights between United Kingdom and Ottawa have experienced delays in the past year, with the average delay time being 242 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 has had the lowest number of delays on this route, with just 11% 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 17 April 2026.
Check out reviews from past customers who have flown with Air Transat,Air France, andAir Canada 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
536 reviews
Check prices

Overall

7.7

Crew

8.4

Entertainment

7.0

Boarding

7.9

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
536 reviews
Air Transat
7.7
Good
536 reviews
Check prices

Overall

7.7

Crew

8.4

Entertainment

7.0

Boarding

7.9

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
1,572 reviews
Air Transat
7.7
Good
536 reviews
Check prices

Overall

7.7

Crew

8.4

Entertainment

7.0

Boarding

7.9

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
10,933 reviews
Air Transat
7.7
Good
536 reviews
Check prices

Overall

7.7

Crew

8.4

Entertainment

7.0

Boarding

7.9

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
7,930 reviews
Air Transat
7.7
Good
536 reviews
Check prices

Overall

7.7

Crew

8.4

Entertainment

7.0

Boarding

7.9

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?

    Located just 10.6 km from the city centre, Ottawa (YOW) is the airport most travelers will use when flying to Ottawa from United Kingdom.

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

    A quick flight from United Kingdom to Ottawa can take about 11h 05m. Air Transat provides one of the quickest options available for as low as C$ 835. There are 5343 km between United Kingdom and Ottawa. This flight may include one or multiple stops.

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

    C$ 463 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Virgin Atlantic and Air Transat, with prices starting from C$ 485 and C$ 545, respectively.

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

    While some choose either London Stansted - Ottawa or London Gatwick - 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?

    Before booking your flight to Ottawa from United Kingdom, check out the most reliable airlines to get you to your destination on time: Aegean Airlines (100%), United Airlines (79%), Air Canada( 79%).

  • 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 C$ 1,077, our data indicates the cheapest price to be C$ 805. The most popular route (London Heathrow - Ottawa), is priced around C$ 616.

  • 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 vacation 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, October is the cheapest month in which you can book a flight from United Kingdom to Ottawa (average of C$ 119). Flying from United Kingdom to Ottawa in August is currently the most expensive (average of C$ 3,359). 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
Gatineau
Brockville
Perth
Wakefield
Pembroke
Smiths Falls

Browse thousands of different options on Cheapflights for your next trip

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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 3 airlines flying from United Kingdom to Ottawa

Discover the top 3 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 629,999 searches. Data last updated 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapestC$ 727AverageC$ 935FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapestC$ 790AverageC$ 1,328FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapestC$ 805AverageC$ 1,013FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

Cheapflights helps you search for flights from United Kingdom to Ottawa via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Ottawa by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Ottawa from United Kingdom shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on United Kingdom to Ottawa flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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