Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from the United Kingdom to Ottawa from £291

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 23/12. 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

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
18:05 - 20:35YOW-LHR
21h 30m2 stops
£453Multiple Airlines
Find Deal
Fri, 21 Nov - Sat, 24 Jan
Multiple Airlines Logo
06:00 - 19:18LHR-YOW
18h 18m2 stops
Multiple Airlines Logo
10:20 - 07:10YOW-LHR
15h 50m2 stops
£458Multiple Airlines
Find Deal
Fri, 28 Nov - Wed, 28 Jan
Air Canada Logo
06:50 - 09:42LHR-YOW
31h 52m2 stops
Air Canada Logo
12:05 - 20:35YOW-LHR
27h 30m2 stops
£462Air Canada
Find Deal
Thu, 13 Nov - Thu, 20 Nov
Air Canada Logo
09:00 - 16:23LHR-YOW
36h 23m2 stops
Air Canada Logo
08:30 - 07:10YOW-LHR
17h 40m2 stops
£467Air Canada
Find Deal
Sun, 30 Nov - Sun, 7 Dec
Air Transat Logo
11:40 - 00:39LGW-YOW
17h 59m1 stop
Air Transat Logo
18:55 - 09:45YOW-LGW
9h 50m1 stop
£479Air Transat
Find Deal
Sat, 29 Nov - Sat, 6 Dec
Air Transat Logo
11:40 - 18:24LGW-YOW
11h 44m1 stop
Air Transat Logo
06:45 - 09:45YOW-LGW
22h 00m1 stop
£480Air Transat
Find Deal
Sun, 30 Nov - Sun, 7 Dec
Air France Logo
06:20 - 15:10LHR-YOW
13h 50m1 stop
Air France Logo
17:20 - 08:00YOW-LHR
9h 40m1 stop
£492Air France
Find Deal
Thu, 13 Nov - Thu, 20 Nov
Virgin Atlantic Logo
08:55 - 15:10LHR-YOW
11h 15m1 stop
Virgin Atlantic Logo
17:20 - 13:45YOW-LHR
15h 25m1 stop
£493Virgin Atlantic
Find Deal
Wed, 24 Dec - Wed, 14 Jan
Virgin Atlantic Logo
11:30 - 15:10LHR-YOW
32h 40m1 stop
Virgin Atlantic Logo
17:20 - 08:00YOW-LHR
9h 40m1 stop
£503Virgin Atlantic
Find Deal
Tue, 23 Dec - Wed, 14 Jan
Air France Logo
06:00 - 15:10BHX-YOW
14h 10m1 stop
Air France Logo
17:20 - 15:20YOW-BHX
17h 00m1 stop
£593Air France
Find Deal
Thu, 20 Nov - Thu, 27 Nov

Air Canada flights from United Kingdom to Ottawa

Our best Air Canada deals on United Kingdom to Ottawa flight tickets
Air Canada
8 Nov
LHR13:25London Heathrow
32h 53m
2 stops
YOW17:18Ottawa
2 May
YOW16:00Ottawa
24h 00m
2 stops
LHR21:00London Heathrow
£457
Find similar
Air Canada
8 Nov
LHR13:25London Heathrow
32h 53m
2 stops
YOW17:18Ottawa
2 May
YOW07:00Ottawa
9h 00m
1 stop
LHR21:00London Heathrow
£461
Find similar
Air Canada
13 Nov
LHR06:50London Heathrow
31h 52m
2 stops
YOW09:42Ottawa
20 Nov
YOW12:05Ottawa
27h 30m
2 stops
LHR20:35London Heathrow
£462
Find similar

Air Transat flights from United Kingdom to Ottawa

Our best Air Transat deals on United Kingdom to Ottawa flight tickets
Air Transat
29 Nov
LGW11:40London Gatwick
17h 59m
1 stop
YOW00:39Ottawa
6 Dec
YOW18:55Ottawa
9h 50m
1 stop
LGW09:45London Gatwick
£479
Find similar
Air Transat
30 Nov
LGW11:40London Gatwick
11h 44m
1 stop
YOW18:24Ottawa
7 Dec
YOW06:45Ottawa
22h 00m
1 stop
LGW09:45London Gatwick
£480
Find similar
Air Transat
21 Nov
LGW11:40London Gatwick
11h 44m
1 stop
YOW18:24Ottawa
24 Jan
YOW18:55Ottawa
9h 50m
1 stop
LGW09:45London Gatwick
£486
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 3 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

Fri 21/11

09:00-17:42

2 stops13h 42m

Ottawa

Sat 24/1

18:05-20:35

2 stops21h 30m

£453

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 28/11

06:00-19:18

2 stops18h 18m

Ottawa

Wed 28/1

10:20-07:10

2 stops15h 50m

£458

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 13/11

06:50-09:42

2 stops31h 52m

Ottawa

Thu 20/11

12:05-20:35

2 stops27h 30m

£462

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 30/11

09:00-16:23

2 stops36h 23m

Ottawa

Sun 7/12

08:30-07:10

2 stops17h 40m

£467

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 29/11

11:40-00:39

1 stop17h 59m

Ottawa

Sat 6/12

18:55-09:45

1 stop9h 50m

£479

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sun 30/11

11:40-18:24

1 stop11h 44m

Ottawa

Sun 7/12

06:45-09:45

1 stop22h 00m

£480

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 13/11

06:20-15:10

1 stop13h 50m

Ottawa

Thu 20/11

17:20-08:00

1 stop9h 40m

£492

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 24/12

08:55-15:10

1 stop11h 15m

Ottawa

Wed 14/1

17:20-13:45

1 stop15h 25m

£493

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 23/12

11:30-15:10

1 stop32h 40m

Ottawa

Wed 14/1

17:20-08:00

1 stop9h 40m

£503

BirminghamOttawa

BHX - YOW

BHXYOW

Birmingham

Thu 20/11

06:00-15:10

1 stop14h 10m

Ottawa

Thu 27/11

17:20-15:20

1 stop17h 00m

£593

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ottawa from

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 £477. 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 £489.

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 £559. 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 £659. 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 £488 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 £591 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 £568 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 £382 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

£6,346

Fastest flight time

7h 30m

Direct flights

Mon, Thu, Sat and Sun

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from United Kingdom in the past 72 hours is £6,346. The best return flight deal from United Kingdom to Ottawa found on momondo in the last 72 hours is £514.
The fastest flight from United Kingdom to Ottawa takes 7h 30m
Direct flights go from United Kingdom to Ottawa on Monday, Thursday, Saturday and Sunday. 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 £311Free CancellationRating
7.1
10,394 reviews
Search Air Canada flights
United AirlinesPriceFrom £343Free CancellationRating
7.4
8,996 reviews
Search United Airlines flights
KLMPriceFrom £359Free CancellationRating
7.7
1,404 reviews
Search KLM flights
Air FrancePriceFrom £370Free CancellationRating
7.4
1,482 reviews
Search Air France flights
Virgin AtlanticPriceFrom £377Free CancellationRating
7.5
671 reviews
Search Virgin Atlantic flights
Air TransatPriceFrom £417Free CancellationRating
7.8
470 reviews
Search Air Transat flights
LufthansaPriceFrom £464Free CancellationRating
6.8
7,544 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.

An easier way to manage your Ottawa trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 3/12
Wed 10/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada