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Cheap flights from the United Kingdom to Ottawa from £303

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Ottawa departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from the United Kingdom to Ottawa

Recent return flight deals from the United Kingdom to Ottawa

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:00 - 17:42LHR-YOW
13h 42m2 stops
Multiple Airlines Logo
20:25 - 20:35YOW-LHR
19h 10m2 stops
£456Multiple Airlines
Find Deal
Tue, 25 Nov - Wed, 28 Jan
Air Canada Logo
06:50 - 16:23LHR-YOW
14h 33m2 stops
Air Canada Logo
16:15 - 07:10YOW-LHR
33h 55m2 stops
£457Air Canada
Find Deal
Mon, 2 Feb - Sat, 14 Feb
Virgin Atlantic Logo
08:55 - 15:10LHR-YOW
11h 15m1 stop
Virgin Atlantic Logo
17:20 - 08:00YOW-LHR
9h 40m1 stop
£473Virgin Atlantic
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Air France Logo
06:20 - 15:10LHR-YOW
13h 50m1 stop
Air France Logo
17:20 - 08:00YOW-LHR
9h 40m1 stop
£476Air France
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Virgin Atlantic Logo
08:55 - 15:10LHR-YOW
11h 15m1 stop
Virgin Atlantic Logo
17:20 - 07:55YOW-LHR
9h 35m1 stop
£477Virgin Atlantic
Find Deal
Thu, 27 Nov - Sun, 7 Dec
Air France Logo
08:55 - 15:10LHR-YOW
11h 15m1 stop
Air France Logo
17:20 - 18:20YOW-LHR
20h 00m1 stop
£477Air France
Find Deal
Fri, 28 Nov - Sun, 7 Dec
Air Transat Logo
11:40 - 00:39LGW-YOW
17h 59m1 stop
Air Transat Logo
15:05 - 09:45YOW-LGW
13h 40m1 stop
£480Air Transat
Find Deal
Sat, 22 Nov - Sun, 30 Nov
Air Transat Logo
11:40 - 00:41LGW-YOW
18h 01m1 stop
Air Transat Logo
15:00 - 09:45YOW-LGW
13h 45m1 stop
£484Air Transat
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Lufthansa Logo
13:00 - 18:38LHR-YOW
10h 38m1 stop
Lufthansa Logo
21:55 - 09:20YOW-LHR
6h 25mdirect
£532Lufthansa
Find Deal
Tue, 25 Nov - Wed, 28 Jan
Lufthansa Logo
09:40 - 01:38LCY-YOW
19h 58m2 stops
Lufthansa Logo
19:25 - 17:40YOW-LCY
18h 15m2 stops
£559Lufthansa
Find Deal
Thu, 12 Mar - Mon, 16 Mar

Air Canada flights from United Kingdom to Ottawa

Our best Air Canada deals on United Kingdom to Ottawa flight tickets
Air Canada
2 Feb
LHR06:50London Heathrow
14h 33m
2 stops
YOW16:23Ottawa
14 Feb
YOW16:15Ottawa
33h 55m
2 stops
LHR07:10London Heathrow
£457
Find similar
Air Canada
12 Nov
LHR09:00London Heathrow
15h 18m
2 stops
YOW19:18Ottawa
20 Nov
YOW19:25Ottawa
20h 10m
2 stops
LHR20:35London Heathrow
£465
Find similar
Air Canada
22 Nov
LHR09:00London Heathrow
10h 21m
1 stop
YOW14:21Ottawa
30 Nov
YOW08:30Ottawa
17h 40m
2 stops
LHR07:10London Heathrow
£470
Find similar

Icelandair flights from United Kingdom to Ottawa

Our best Icelandair deals on United Kingdom to Ottawa flight tickets
Icelandair
2 Feb
LGW11:55London Gatwick
17h 44m
2 stops
YOW00:39Ottawa
14 Feb
YOW05:40Ottawa
24h 15m
2 stops
LGW10:55London Gatwick
£613
Find similar
Icelandair
12 Nov
LGW11:55London Gatwick
17h 47m
2 stops
YOW00:42Ottawa
20 Nov
YOW05:40Ottawa
24h 15m
2 stops
LGW10:55London Gatwick
£875
Find similar

momondo 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, momondo users made 279,928 searches. Data last updated 5 November 2025.
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

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 25/11

09:00-17:42

2 stops13h 42m

Ottawa

Wed 28/1

20:25-20:35

2 stops19h 10m

£456

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 2/2

06:50-16:23

2 stops14h 33m

Ottawa

Sat 14/2

16:15-07:10

2 stops33h 55m

£457

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 2/12

08:55-15:10

1 stop11h 15m

Ottawa

Tue 9/12

17:20-08:00

1 stop9h 40m

£473

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 2/12

06:20-15:10

1 stop13h 50m

Ottawa

Tue 9/12

17:20-08:00

1 stop9h 40m

£476

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 27/11

08:55-15:10

1 stop11h 15m

Ottawa

Sun 7/12

17:20-07:55

1 stop9h 35m

£477

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 28/11

08:55-15:10

1 stop11h 15m

Ottawa

Sun 7/12

17:20-18:20

1 stop20h 00m

£477

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 22/11

11:40-00:39

1 stop17h 59m

Ottawa

Sun 30/11

15:05-09:45

1 stop13h 40m

£480

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 2/12

11:40-00:41

1 stop18h 01m

Ottawa

Tue 9/12

15:00-09:45

1 stop13h 45m

£484

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 25/11

13:00-18:38

1 stop10h 38m

Ottawa

Wed 28/1

21:55-09:20

Nonstop6h 25m

£532

LondonOttawa

LCY - YOW

LCYYOW

London City

Thu 12/3

09:40-01:38

2 stops19h 58m

Ottawa

Mon 16/3

19:25-17:40

2 stops18h 15m

£559

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from United Kingdom to Ottawa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ottawa?

In general, January is the cheapest month to fly from United Kingdom to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £480. If you aren’t able to travel during the month of January, then book flights to Ottawa from United Kingdom during February instead. Flights to Ottawa in February, while not as cheap as those in January, still average around £492.

What is the cheapest day to depart on your flight to Ottawa?

The cheapest day to depart on your flight to Ottawa is on a Monday when prices can be found for as low as £562. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £663. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ottawa.

What is the cheapest time of day to depart on your flight to Ottawa?

Flying to Ottawa from United Kingdom in the evening is the least expensive time of day to depart. momondo users have found prices as low as £491 when looking at flights departing in the evening. In the morning is when there is more demand to fly to Ottawa, so prices are often more expensive at around £593 per ticket.

What is the cheapest United Kingdom to Ottawa flight route?

Fly from London Heathrow to Ottawa for the best United Kingdom - Ottawa flight prices

How far in advance should I book a flight to Ottawa?

You are more likely to see cheaper flights to Ottawa from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around £571 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from United Kingdom for as low as £385 on momondo.

What cabin class options are available on United Kingdom to Ottawa flights?

There are 3 cabin classes available to choose from on United Kingdom to Ottawa flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap United Kingdom to Ottawa flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Ottawa

Best price found

£6,384

Fastest flight time

7h 30m

Direct flights

Mon, Thu, Fri and Sat

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from United Kingdom in the past 72 hours is £6,384. The best return flight deal from United Kingdom to Ottawa found on momondo in the last 72 hours is £517.
The fastest flight from United Kingdom to Ottawa takes 7h 30m
Direct flights go from United Kingdom to Ottawa on Monday, Thursday, Friday and Saturday. There are no airlines offering direct flights..
There is 1 airport near Ottawa: Ottawa (YOW)
Search flight deals

  • When did momondo last update prices for flights from United Kingdom to Ottawa Airport?

    Prices for flights from United Kingdom to Ottawa Airport were last updated today.

  • How many operators does momondo search for flights from United Kingdom to Ottawa Airport?

  • How old do you have to be to fly from United Kingdom to Ottawa Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The required travel and health documents for your Ottawa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ottawa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from United Kingdom to Ottawa?

Best airlines flying from United Kingdom to Ottawa

Compare and see reviews for airlines that fly from United Kingdom to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom £312Free CancellationRating
7.1
10,404 reviews
Search Air Canada flights
United AirlinesPriceFrom £345Free CancellationRating
7.4
9,000 reviews
Search United Airlines flights
KLMPriceFrom £361Free CancellationRating
7.7
1,405 reviews
Search KLM flights
Air FrancePriceFrom £372Free CancellationRating
7.4
1,482 reviews
Search Air France flights
Virgin AtlanticPriceFrom £380Free CancellationRating
7.5
671 reviews
Search Virgin Atlantic flights
Air TransatPriceFrom £419Free CancellationRating
7.8
470 reviews
Search Air Transat flights
LufthansaPriceFrom £466Free CancellationRating
6.8
7,554 reviews
Search Lufthansa flights

Travelling to a place near Ottawa?

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

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to Ottawa?

It is quick and easy to find United Kingdom to Ottawa flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ottawa that suits you.

Can I find flights from United Kingdom to Ottawa with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ottawa from United Kingdom with this policy.

How can momondo help me find flights from United Kingdom to Ottawa?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ottawa from United Kingdom.

I’m not ready to book a flight from United Kingdom to Ottawa right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ottawa, momondo offers a useful price alert feature which will track prices for flights to Ottawa from United Kingdom and alert you when they change.

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