Which airport is the most popular for stopovers for flights between London and Ottawa?

Paris (CDG) was the most common stop: 47% of momondo users choosing one-stop flights on this route connected there.

How many flights depart from London to Ottawa on average per day?

The number of flights available between London and Ottawa is 4 per day as of September 2025. The most frequent departure time is 12:00, with 100% of daily flights leaving in the afternoon.

What is the cheapest airline that flies from London to Ottawa?

WestJet and Air France are the most popular carriers operating from London to Ottawa

Which stopover airport has the shortest travel time from London to Ottawa?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 23m.

Which airlines fly to Ottawa?

Air Canada, Lufthansa and British Airways are the top three most popular airlines that fly to Ottawa from London according to our data. Air Canada is the first choice among our users, with 68% of people opting to fly with this airline when travelling to Ottawa. Keep in mind that there are 10 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

Which stopover airport has the shortest connection time from London to Ottawa?

Newark (EWR) has the shortest average stopover time for this route: 1h 43m.

How many flights depart from London to Ottawa on average per week?

The number of flights available between London and Ottawa is 28 per week as of September 2025. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.

Which stopover airport offers the lowest fares from London to Ottawa?

Flights via Toronto (YYZ) offer the lowest average return price of £509.

Which airlines fly direct from London to Ottawa?

With flights from London to Ottawa, you will notice that none go direct as the distance between countries is rather long. You can find many flights from two predominant airlines that include one lay-over, and range between 9 hours and 14 hours on average. These are from Air Canada at about 12h 30min, usually stopping at Lynn Lake Airport (YYL) in Manitoba, and Lufthansa, which averages about 9 hours, and mostly stops at Trudeau International Airport (YUL) in Montreal. Occasionally, you can find a United Airlines flight that averages about 11 hours and stops in Washington Dulles International Airport (IAD). Booking further in advance is also a good solution for getting the shortest flight as emergency bookings will sometimes result in two stops and a very long flying time. When it comes to booking flights from London to Ottawa with two stops, you can find several airlines servicing the route, including LOT and KLM. Your London departure airports are Heathrow (LHR), Gatwick (LGW) and London City Airport (LCY), and your arrival airport will be Ottawa Macdonald-Cartier International Airport (YOW). What is the best way to get in and out of airports in London and Ottawa? London airports are extremely well connected to public transportation networks. The airports most commonly used on this flight include Heathrow (LHR) which has three underground stations at their terminals directly linking to the city via the famous Piccadilly Line, and Gatwick (LGW), which has its own Gatwick Express tube using Victoria, District and Circle lines. London City Airport (LCY) is also very close and can be reached via the underground tube on the DLR Line. You will also find buses from the city leaving for all airports without hassle and, of course, a taxi is also great if you have heavy luggage to consider. When you arrive in Ottawa, your destination airport will be Ottawa Macdonald-Cartier International Airport (YOW) based just 15 minutes from the city centre. You will find that the Line 97 bus is available 24 hours a day and leaves every 30 minutes to get to the city. Apart from a taxi, this would be your ideal way to get to the city centre as the train station is not based at the airport. What are the benefits of the different airports in London and Ottawa? If you are based in the centre of London and need to fly to Ottawa, consider Heathrow (LHR) to optimise your ground travel time. LHR is 15 miles (25km) from the city centre as opposed to Gatwick (LGW) which is 28 miles (45km) away. Both airports are optimal in terms of services and amenities, but Heathrow is the biggest airport in Europe. Large airports can be quite daunting for first-time travellers, and if you would prefer a smaller airport that is still world-class, consider LGW for a comprehensive solution that will take less time to reach the gates. London City Airport (LCY) is exceptionally close to the capital and as a smaller business airport, it is often much easier to get in and out whilst avoiding the crowds. Ottawa Macdonald-Cartier International Airport (YOW) will be your destination. It's a fantastic airport that is convenient, clean and easy to find your way around. Which cities can you get to from Ottawa Macdonald-Cartier International Airport? Ottawa Macdonald-Cartier International Airport (YOW) is a great destination airport if you want to be close to the inner city but still have easy access to surrounding Canadian cities and municipalities. The airport predominantly serves the metropolitan part of the city capital which is known as the National Capital Region. The closest city is Gatineau which lies on the opposite side of the Ottawa River in French-speaking Quebec. It is reachable in under 15 minutes by taxi. The airport is also based about 40 minutes from Kemptville in Ottawa, and about a 2-hour drive from Montreal. Car hire at Ottawa Macdonald-Cartier International Airport is a great solution for road-tripping in Canada to see the surrounding areas of Ottawa. Alternatively, the Ottawa Station is just 15 minutes away and you can get train tickets to all the surrounding cities with ease.

When did momondo last update prices for flights from London to Ottawa Airport?

Prices for flights from London to Ottawa Airport are updated daily.

How many operators does momondo search for flights from London to Ottawa Airport?

As of September 2025, there are 7 operators available to choose from for flights from London to Ottawa Airport.

How old do you have to be to fly from London 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 London to Ottawa Airport.

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

The travel and health documents you'll need for your trip to Ottawa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£221 Cheap Flights from London to Ottawa in 2025

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Round-trip

One-way

Last minute

Direct

Cheap return flights

11:40 - 00:42LGW-YOW

17h 02m1 stop

05:40 - 09:45YOW-LGW

23h 05m1 stop

£429

Find Deal

Sat, 1 Nov - Sat, 8 Nov

12:40 - 00:22LGW-YOW

16h 42m1 stop

05:55 - 09:50YOW-LGW

22h 55m2 stops

£432

Find Deal

Sat, 11 Oct - Thu, 16 Oct

17:50 - 00:22LHR-YOW

11h 32m1 stop

17:15 - 21:25YOW-LHR

23h 10m1 stop

£453Air France

Find Deal

Thu, 9 Oct - Thu, 16 Oct

06:50 - 15:04LHR-YOW

13h 14m2 stops

21:55 - 21:00YOW-LHR

18h 05m2 stops

£456Air Canada

Find Deal

Thu, 18 Sep - Thu, 25 Sep

14:05 - 16:25LHR-YOW

7h 20mdirect

18:40 - 06:30YOW-LHR

30h 50m1 stop

£462Air Canada

Find Deal

Thu, 18 Sep - Sat, 27 Sep

14:05 - 16:25LHR-YOW

7h 20mdirect

20:55 - 06:30YOW-LHR

28h 35m1 stop

£465Lufthansa

Find Deal

Thu, 18 Sep - Sat, 27 Sep

14:05 - 16:25LHR-YOW

7h 20mdirect

20:55 - 06:30YOW-LHR

28h 35m1 stop

£467Lufthansa

Find Deal

Thu, 18 Sep - Sat, 27 Sep

12:40 - 00:21LGW-YOW

16h 41m1 stop

10:45 - 10:45YOW-LGW

19h 00m1 stop

£481Air Transat

Find Deal

Thu, 16 Oct - Mon, 20 Oct

11:40 - 18:26LGW-YOW

11h 46m1 stop

10:00 - 09:45YOW-LGW

18h 45m1 stop

£489Air Transat

Find Deal

Thu, 20 Nov - Sun, 23 Nov

17:50 - 00:22LHR-YOW

11h 32m1 stop

17:15 - 21:25YOW-LHR

23h 10m1 stop

£494Air France

Find Deal

Thu, 18 Sep - Thu, 25 Sep

WestJet flights from London to Ottawa

Our best WestJet deals on London to Ottawa flight tickets

WestJet

10 Oct

LGW10:45London Gatwick

18h 37m

2 stops

YOW00:22Ottawa

17 Oct

YOW05:55Ottawa

22h 30m

2 stops

LGW09:25London Gatwick

£471

Find similar

WestJet

18 Sept

LGW10:45London Gatwick

18h 37m

2 stops

YOW00:22Ottawa

27 Sept

YOW05:55Ottawa

22h 30m

2 stops

LGW09:25London Gatwick

£474

Find similar

WestJet

3 Oct

LGW10:45London Gatwick

18h 37m

2 stops

YOW00:22Ottawa

5 Oct

YOW05:55Ottawa

22h 30m

2 stops

LGW09:25London Gatwick

£479

Find similar

Air Canada flights from London to Ottawa

Our best Air Canada deals on London to Ottawa flight tickets

Air Canada

18 Sept

LHR06:50London Heathrow

13h 14m

2 stops

YOW15:04Ottawa

25 Sept

YOW21:55Ottawa

18h 05m

2 stops

LHR21:00London Heathrow

£456

Find similar

Air Canada

18 Sept

LHR14:05London Heathrow

7h 20m

YOW16:25Ottawa

27 Sept

YOW18:40Ottawa

30h 50m

1 stop

LHR06:30London Heathrow

£462

Find similar

Air Canada

17 Sept

LHR09:30London Heathrow

15h 47m

2 stops

YOW20:17Ottawa

24 Sept

YOW06:00Ottawa

19h 30m

1 stop

LHR06:30London Heathrow

£467

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 1/11

11:40-00:42

1 stop17h 02m

Ottawa

Sat 8/11

05:40-09:45

1 stop23h 05m

£429

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 11/10

12:40-00:22

1 stop16h 42m

Ottawa

Thu 16/10

05:55-09:50

2 stops22h 55m

£432

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 9/10

17:50-00:22

1 stop11h 32m

Ottawa

Thu 16/10

17:15-21:25

1 stop23h 10m

£453

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 18/9

06:50-15:04

2 stops13h 14m

Ottawa

Thu 25/9

21:55-21:00

2 stops18h 05m

£456

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 18/9

14:05-16:25

Nonstop7h 20m

Ottawa

Sat 27/9

18:40-06:30

1 stop30h 50m

£462

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 18/9

14:05-16:25

Nonstop7h 20m

Ottawa

Sat 27/9

20:55-06:30

1 stop28h 35m

£465

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 18/9

14:05-16:25

Nonstop7h 20m

Ottawa

Sat 27/9

20:55-06:30

1 stop28h 35m

£467

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 16/10

12:40-00:21

1 stop16h 41m

Ottawa

Mon 20/10

10:45-10:45

1 stop19h 00m

£481

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 20/11

11:40-18:26

1 stop11h 46m

Ottawa

Sun 23/11

10:00-09:45

1 stop18h 45m

£489

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 18/9

17:50-00:22

1 stop11h 32m

Ottawa

Thu 25/9

17:15-21:25

1 stop23h 10m

£494

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London 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

Prices

Airlines

Stopovers

Other information

What is the typical price of a round-trip flight between London and Ottawa?

What is the cheapest month to fly to Ottawa?

In general, January is the cheapest month to fly from London to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £464. If you aren’t able to travel during the month of January, then book flights to Ottawa from London during February instead. Flights to Ottawa in February, while not as cheap as those in January, still average around £470.

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 £545. 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 Saturday because tickets tend to average around £607. 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 London in the evening is the least expensive time of day to depart. momondo users have found prices as low as £474 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 £584 per ticket.

What is the cheapest London to Ottawa flight route?

Fly from London Heathrow to Ottawa for the best London - 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 London when booking weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around £553 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 London for as low as £401 on momondo.

What cabin class options are available on London to Ottawa flights?

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

Can stopping save me money on London to Ottawa flights?

You could potentially save up to 19% on your flight if you consider stops on a London to Ottawa flight.

How have London to Ottawa flight prices changed over time?

As of September 2025, prices for London to Ottawa flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from London to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from London to Ottawa according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London to Ottawa (LON to YOW) flight deals and tips

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

Best price found	£603
Fastest flight time	7h 20m
Direct flights	Tue, Thu, Fri and Sun
Airports in Ottawa	1 airport

The best one-way flight to Ottawa from London in the past 72 hours is £603. The best return flight deal from London to Ottawa found on momondo in the last 72 hours is £525.

The fastest flight from London to Ottawa takes 7h 20m

Direct flights go from London to Ottawa on Tuesday, Thursday, Friday and Sunday. There are no airlines offering direct flights..

There is 1 airport near Ottawa: Ottawa (YOW)

Search flight deals

How far is London to Ottawa by plane?
The straight-line distance from London to Ottawa is 3329.4 mi. In terms of flight time, this usually takes a little over 7h 20m.
When did momondo last update prices for flights from London to Ottawa Airport?
Prices for flights from London to Ottawa Airport are updated daily.
How many operators does momondo search for flights from London to Ottawa Airport?
As of September 2025, there are 7 operators available to choose from for flights from London to Ottawa Airport.
How old do you have to be to fly from London 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 London to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The travel and health documents you'll need for your trip to Ottawa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Ottawa?
Based on momondo bookings for flights between London and Ottawa, the leading plane model is Boeing 777-200LR, making up 20.70% of the total bookings. Other popular models include Boeing 777 with 16.98%, Boeing 787-9 Dreamliner with 11.16%, and Airbus A330-200 with 8.37%.
What is the most popular airline from London to Ottawa?
momondo data reveals that the most frequently booked airline on the route from London to Ottawa is Air Canada, representing 59% of all bookings. The subsequent popular airlines are Air Transat at 11%, Lufthansa at 11%, and Air France at 10%.

Best airlines flying from London to Ottawa

Compare and see reviews for airlines that fly from London to Ottawa with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom £302	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom £335	Free Cancellation	Rating 7.4 8,937 reviews	Search United Airlines flights
KLM	PriceFrom £348	Free Cancellation	Rating 7.8 1,385 reviews	Search KLM flights
Air France	PriceFrom £359	Free Cancellation	Rating 7.4 1,469 reviews	Search Air France flights
Virgin Atlantic	PriceFrom £366	Free Cancellation	Rating 7.4 664 reviews	Search Virgin Atlantic flights
Air Transat	PriceFrom £405	Free Cancellation	Rating 7.7 438 reviews	Search Air Transat flights
Lufthansa	PriceFrom £449	Free Cancellation	Rating 6.8 7,409 reviews	Search Lufthansa flights

United Airlines Flights From London to Ottawa
The lowest priced United Airlines flight from London to Ottawa from the last 72 hours was £454. Generally, United Airlines has 4 flights on this route every week with an average price of £476. United Airlines is rated 7.4/10 by our users.
Air Canada Flights From London to Ottawa
Across 10,000 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from London to Ottawa about 4 times each week, with ticket deals ranging from £408 to £577. Price data is based on momondo searches in the last 72 hours.

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Ottawa for you.

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

Flights from London to Ottawa with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Ottawa?

Once all potential London to Ottawa flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Ottawa from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from London to Ottawa from £221

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Ottawa departing on 18/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names, great deals

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WestJet flights from London to Ottawa

Our best WestJet deals on London to Ottawa flight tickets

Air Canada flights from London to Ottawa

Our best Air Canada deals on London to Ottawa flight tickets

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How to get the cheapest flight ticket from London 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 typical price of a round-trip flight between London and Ottawa?

What is the cheapest month to fly to Ottawa?

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

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

What is the cheapest London to Ottawa flight route?

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

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

What cabin class options are available on London to Ottawa flights?

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

Can stopping save me money on London to Ottawa flights?

You could potentially save up to 19% on your flight if you consider stops on a London to Ottawa flight.

How have London to Ottawa flight prices changed over time?

As of September 2025, prices for London to Ottawa flights are approximately 18% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from London to Ottawa?

WestJet and Air France are the most popular carriers operating from London to Ottawa

Which airlines fly to Ottawa?

Which airport is the most popular for stopovers for flights between London and Ottawa?

Paris (CDG) was the most common stop: 47% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London to Ottawa?

Flights via Toronto (YYZ) offer the lowest average return price of £509.

Which stopover airport has the shortest travel time from London to Ottawa?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 23m.

Which stopover airport has the shortest connection time from London to Ottawa?

Newark (EWR) has the shortest average stopover time for this route: 1h 43m.

How many flights depart from London to Ottawa on average per day?

The number of flights available between London and Ottawa is 4 per day as of September 2025. The most frequent departure time is 12:00, with 100% of daily flights leaving in the afternoon.

How many flights depart from London to Ottawa on average per week?

The number of flights available between London and Ottawa is 28 per week as of September 2025. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.

When to book flights from London to Ottawa

Cheap London to Ottawa (LON to YOW) flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in Ottawa

How far is London to Ottawa by plane?

When did momondo last update prices for flights from London to Ottawa Airport?

How many operators does momondo search for flights from London to Ottawa Airport?

How old do you have to be to fly from London to Ottawa Airport?

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

What is the most popular plane model from London to Ottawa?

What is the most popular airline from London to Ottawa?

Best airlines flying from London to Ottawa

Compare and see reviews for airlines that fly from London to Ottawa with momondo

United Airlines Flights From London to Ottawa

Air Canada Flights From London to Ottawa

Travelling to a place near Ottawa?

Why use momondo?

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

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

How can momondo help me find flights from London to Ottawa?

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.