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Cheap flights from the United Kingdom to Ottawa from C$ 436

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
15 Oct — 22 Oct1
1 adult
1 adult, Economy

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 15 September 2025.

Round-trip from

C$ 808

One-way from

C$ 436

Popular in

August

Cheapest in

January

Average price

C$ 1,001

Good round-trip deal

C$ 1,007 or less

Good one-way deal

C$ 1,008 or less
Air France
  • Air France
  • 9/10-20/10
  • 2 total stops
  • 34h 42m total
  • United Kingdom to Ottawa
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15/12
  • 15/12
  • 2 total stops
  • 45h 27m total
  • United Kingdom to Ottawa
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 221 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from United Kingdom to Ottawa.
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Price to beat on a one-way flight from United Kingdom to Ottawa.
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Find flight deals from United Kingdom to Ottawa

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 15 September 2025.

Wed 15/109:30 a.m.LHR - YOW
2 stops19h 52mMultiple Airlines
Thu 6/115:40 a.m.YOW - LHR
1 stop24h 40mMultiple Airlines
Deal found 13/9C$ 825
Wed 15/105:50 p.m.LHR - YOW
1 stop11h 32mKLM
Thu 6/115:20 p.m.YOW - LHR
2 stops12h 25mKLM
Deal found 14/9C$ 835
Sat 11/1010:45 a.m.LGW - YOW
2 stops18h 37mWestJet
Sat 18/105:55 a.m.YOW - LGW
2 stops22h 30mWestJet
Deal found 13/9C$ 836
Thu 16/105:50 p.m.LHR - YOW
1 stop11h 32mMultiple Airlines
Thu 30/106:20 p.m.YOW - LHR
1 stop9h 40mMultiple Airlines
Deal found 13/9C$ 836
Tue 14/105:50 p.m.LHR - YOW
1 stop11h 32mMultiple Airlines
Thu 23/105:15 p.m.YOW - LHR
1 stop9h 45mMultiple Airlines
Deal found 15/9C$ 839
Sat 11/1012:40 p.m.LGW - YOW
1 stop16h 42mMultiple Airlines
Sat 18/105:55 a.m.YOW - LGW
1 stop23h 50mMultiple Airlines
Deal found 13/9C$ 848
Fri 10/1011:35 a.m.LGW - YOW
2 stops17h 47mMultiple Airlines
Mon 13/105:55 a.m.YOW - LGW
2 stops22h 55mMultiple Airlines
Deal found 14/9C$ 853
Tue 30/96:50 a.m.LHR - YOW
2 stops12h 01mAir Canada
Thu 27/1110:20 a.m.YOW - LHR
2 stops15h 50mAir Canada
Deal found 13/9C$ 869
Wed 29/106:30 a.m.LHR - YOW
2 stops13h 40mKLM
Wed 5/115:20 p.m.YOW - LHR
2 stops12h 25mKLM
Deal found 14/9C$ 871
Thu 18/98:40 a.m.LHR - YOW
2 stops16h 34mAir Canada
Sun 28/99:55 p.m.YOW - LHR
2 stops18h 05mAir Canada
Deal found 13/9C$ 878
Thu 2/109:30 a.m.LHR - YOW
2 stops19h 52mMultiple Airlines
Tue 7/105:55 a.m.YOW - LHR
2 stops19h 35mMultiple Airlines
Deal found 14/9C$ 879
Fri 10/1010:45 a.m.LGW - YOW
1 stop33h 01mMultiple Airlines
Wed 22/105:55 a.m.YOW - LGW
2 stops22h 30mMultiple Airlines
Deal found 14/9C$ 880

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 15 September 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

LHR - YOW

LHRYOW

London Heathrow

Thu 23/10

5:50 p.m.-12:22 a.m.

1 stop11h 32m

Ottawa

Thu 30/10

6:20 p.m.-1:45 p.m.

1 stop15h 25m

C$ 836

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 14/10

5:50 p.m.-12:22 a.m.

1 stop11h 32m

Ottawa

Thu 23/10

5:15 p.m.-8:00 a.m.

1 stop9h 45m

C$ 839

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Fri 10/10

11:35 a.m.-12:22 a.m.

2 stops17h 47m

Ottawa

Mon 13/10

5:55 a.m.-9:50 a.m.

2 stops22h 55m

C$ 853

ManchesterOttawa

MAN - YOW

MANYOW

Manchester

Thu 4/12

6:00 a.m.-3:10 p.m.

1 stop14h 10m

Ottawa

Thu 11/12

5:20 p.m.-6:40 p.m.

1 stop20h 20m

C$ 884

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 5/3

9:00 a.m.-2:21 p.m.

1 stop10h 21m

Ottawa

Sun 8/3

10:20 a.m.-7:10 a.m.

2 stops16h 50m

C$ 886

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 11/10

10:45 a.m.-2:46 p.m.

1 stop33h 01m

Ottawa

Wed 22/10

10:50 a.m.-6:20 a.m.

1 stop14h 30m

C$ 891

Newcastle upon TyneOttawa

NCL - YOW

NCLYOW

Newcastle upon Tyne

Thu 30/10

6:05 a.m.-4:10 p.m.

1 stop14h 05m

Ottawa

Thu 6/11

5:20 p.m.-10:25 p.m.

1 stop24h 05m

C$ 896

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 22/10

12:40 p.m.-3:00 p.m.

Nonstop7h 20m

Ottawa

Sat 25/10

7:50 p.m.-9:35 p.m.

2 stops44h 45m

C$ 898

ManchesterOttawa

MAN - YOW

MANYOW

Manchester

Thu 30/10

6:00 a.m.-4:10 p.m.

1 stop14h 10m

Ottawa

Thu 6/11

5:20 p.m.-10:10 a.m.

1 stop11h 50m

C$ 902

ManchesterOttawa

MAN - YOW

MANYOW

Manchester

Thu 4/12

1:40 p.m.-12:42 a.m.

2 stops16h 02m

Ottawa

Thu 11/12

5:20 p.m.-6:40 p.m.

1 stop20h 20m

C$ 907

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

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 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$ 224). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of C$ 326). 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 15 September 2025.

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.

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 15 September 2025.
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
438 reviews
Check prices

Entertainment

7.0

Food

6.7

Boarding

7.9

Crew

8.4

Overall

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Transat
7.7
Good
438 reviews
Air Transat
7.7
Good
438 reviews
Check prices

Entertainment

7.0

Food

6.7

Boarding

7.9

Crew

8.4

Overall

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air France
7.4
Good
1,469 reviews
Air Transat
7.7
Good
438 reviews
Check prices

Entertainment

7.0

Food

6.7

Boarding

7.9

Crew

8.4

Overall

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Canada
7.1
Good
10,000 reviews
Air Transat
7.7
Good
438 reviews
Check prices

Entertainment

7.0

Food

6.7

Boarding

7.9

Crew

8.4

Overall

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Lufthansa
6.8
Okay
7,407 reviews
Air Transat
7.7
Good
438 reviews
Check prices

Entertainment

7.0

Food

6.7

Boarding

7.9

Crew

8.4

Overall

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

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 10h 21m. Virgin Atlantic provides one of the quickest options available for as low as C$ 886. 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$ 518 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 WestJet and Air France, with prices starting from C$ 527 and C$ 554, 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?

    Before booking your flight to Ottawa from United Kingdom, check out the most reliable airlines to get you to your destination on time: Air Canada (77%), Aegean Airlines (77%), Austrian Airlines( 77%).

  • 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$ 1,065, our data indicates the cheapest price to be C$ 701. The most popular route (London Heathrow - Ottawa), is priced around C$ 684.

  • 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$ 224). Flying from United Kingdom to Ottawa in December is currently the most expensive (average of C$ 326). 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
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 737AverageC$ 1,004FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapestC$ 803AverageC$ 1,036FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 856AverageC$ 966FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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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