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 October 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 October 2025. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.

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

Paris (CDG) has the shortest average stopover time for this route: 2h 39m.

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

Virgin Atlantic, KLM, and Air France are the most popular carriers operating from London to Ottawa

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

Flights via Toronto (YYZ) offer the lowest average return price of £518.

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

Paris (CDG) was the most common stop: 48% of momondo users choosing one-stop flights on this route connected there.

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 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 October 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.

£273 Cheap Flights from London to Ottawa in 2025/26

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

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from London to Ottawa

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

06:00 - 17:42LHR-YOW

16h 42m2 stops

10:20 - 07:10YOW-LHR

15h 50m2 stops

£399Multiple Airlines

Find Deal

Wed, 19 Nov - Sun, 23 Nov

09:00 - 17:42LHR-YOW

13h 42m2 stops

10:20 - 07:10YOW-LHR

15h 50m2 stops

£406Air Canada

Find Deal

Wed, 26 Nov - Wed, 3 Dec

11:10 - 22:18LHR-YOW

16h 08m2 stops

21:55 - 09:20YOW-LHR

6h 25mdirect

£443Lufthansa

Find Deal

Wed, 26 Nov - Wed, 3 Dec

09:00 - 15:10LHR-YOW

11h 10m1 stop

17:20 - 10:30YOW-LHR

12h 10m1 stop

£462Virgin Atlantic

Find Deal

Thu, 27 Nov - Thu, 4 Dec

13:25 - 14:07LHR-YOW

29h 42m1 stop

18:20 - 07:10YOW-LHR

31h 50m1 stop

£465Lufthansa

Find Deal

Mon, 3 Nov - Mon, 10 Nov

08:55 - 15:20LHR-YOW

11h 25m1 stop

17:20 - 08:00YOW-LHR

9h 40m1 stop

£471Virgin Atlantic

Find Deal

Tue, 11 Nov - Tue, 18 Nov

11:40 - 00:39LGW-YOW

17h 59m1 stop

18:55 - 09:45YOW-LGW

9h 50m1 stop

£483Air Transat

Find Deal

Tue, 11 Nov - Tue, 18 Nov

11:40 - 18:24LGW-YOW

11h 44m1 stop

18:55 - 09:45YOW-LGW

9h 50m1 stop

£488Air Transat

Find Deal

Thu, 27 Nov - Sun, 30 Nov

10:00 - 00:39LCY-YOW

18h 39m2 stops

17:15 - 11:40YOW-LCY

13h 25m2 stops

£855KLM

Find Deal

Sat, 28 Mar - Fri, 3 Apr

10:00 - 00:39LCY-YOW

18h 39m2 stops

17:15 - 13:15YOW-LCY

15h 00m2 stops

£944KLM

Find Deal

Sat, 28 Mar - Sat, 4 Apr

Air Transat flights from London to Ottawa

Our best Air Transat deals on London to Ottawa flight tickets

Air Transat

11 Nov

LGW11:40London Gatwick

17h 59m

1 stop

YOW00:39Ottawa

18 Nov

YOW18:55Ottawa

9h 50m

1 stop

LGW09:45London Gatwick

£483

Find similar

Air Transat

27 Nov

LGW11:40London Gatwick

11h 44m

1 stop

YOW18:24Ottawa

30 Nov

YOW18:55Ottawa

9h 50m

1 stop

LGW09:45London Gatwick

£488

Find similar

Air Transat

15 Nov

LGW11:40London Gatwick

17h 59m

1 stop

YOW00:39Ottawa

20 Nov

YOW18:55Ottawa

9h 50m

1 stop

LGW09:45London Gatwick

£505

Find similar

Lufthansa flights from London to Ottawa

Our best Lufthansa deals on London to Ottawa flight tickets

Lufthansa

26 Nov

LHR11:10London Heathrow

16h 08m

2 stops

YOW22:18Ottawa

3 Dec

YOW21:55Ottawa

6h 25m

LHR09:20London Heathrow

£443

Find similar

Lufthansa

3 Nov

LHR13:25London Heathrow

29h 42m

1 stop

YOW14:07Ottawa

10 Nov

YOW18:20Ottawa

31h 50m

1 stop

LHR07:10London Heathrow

£465

Find similar

Lufthansa

26 Nov

LHR12:00London Heathrow

7h 30m

YOW14:30Ottawa

3 Dec

YOW21:55Ottawa

6h 25m

LHR09:20London Heathrow

£470

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 19/11

06:00-17:42

2 stops16h 42m

Ottawa

Sun 23/11

10:20-07:10

2 stops15h 50m

£399

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 26/11

09:00-17:42

2 stops13h 42m

Ottawa

Wed 3/12

10:20-07:10

2 stops15h 50m

£406

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 26/11

11:10-22:18

2 stops16h 08m

Ottawa

Wed 3/12

21:55-09:20

Nonstop6h 25m

£443

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 27/11

09:00-15:10

1 stop11h 10m

Ottawa

Thu 4/12

17:20-10:30

1 stop12h 10m

£462

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Mon 3/11

13:25-14:07

1 stop29h 42m

Ottawa

Mon 10/11

18:20-07:10

1 stop31h 50m

£465

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Tue 11/11

08:55-15:20

1 stop11h 25m

Ottawa

Tue 18/11

17:20-08:00

1 stop9h 40m

£471

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 11/11

11:40-00:39

1 stop17h 59m

Ottawa

Tue 18/11

18:55-09:45

1 stop9h 50m

£483

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 27/11

11:40-18:24

1 stop11h 44m

Ottawa

Sun 30/11

18:55-09:45

1 stop9h 50m

£488

LondonOttawa

LCY - YOW

LCYYOW

London City

Sat 28/3

10:00-00:39

2 stops18h 39m

Ottawa

Fri 3/4

17:15-11:40

2 stops13h 25m

£855

LondonOttawa

LCY - YOW

LCYYOW

London City

Sat 28/3

10:00-00:39

2 stops18h 39m

Ottawa

Sat 4/4

17:15-13:15

2 stops15h 00m

£944

Flights are sorted by cheapest return flights first.

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 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 £472. 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 £482.

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 £556. 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 £614. 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 £482 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 £589 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 £559 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 £378 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 October 2025, prices for London to Ottawa flights are approximately 20% 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	£631
Fastest flight time	7h 30m
Direct flights	Mon, Thu and Sat
Airports in Ottawa	1 airport

The best one-way flight to Ottawa from London in the past 72 hours is £631. The best return flight deal from London to Ottawa found on momondo in the last 72 hours is £548.

The fastest flight from London to Ottawa takes 7h 30m

Direct flights go from London to Ottawa on Monday, Thursday and Saturday. 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 30m.
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 October 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 777-300ER, making up 22.01% of the total bookings. Other popular models include Boeing 777-200LR with 15.75%, Boeing 777 with 13.85%, and Boeing 787-9 Dreamliner with 8.54%.
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 58% of all bookings. The subsequent popular airlines are Air Transat at 12%, Air France at 10%, and Lufthansa 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 £307	Free Cancellation	Rating 7.1 10,298 reviews	Search Air Canada flights
United Airlines	PriceFrom £339	Free Cancellation	Rating 7.4 8,974 reviews	Search United Airlines flights
KLM	PriceFrom £354	Free Cancellation	Rating 7.7 1,402 reviews	Search KLM flights
Air France	PriceFrom £366	Free Cancellation	Rating 7.4 1,475 reviews	Search Air France flights
Virgin Atlantic	PriceFrom £373	Free Cancellation	Rating 7.4 667 reviews	Search Virgin Atlantic flights
Air Transat	PriceFrom £412	Free Cancellation	Rating 7.7 458 reviews	Search Air Transat flights
Lufthansa	PriceFrom £459	Free Cancellation	Rating 6.8 7,489 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 £451. Generally, United Airlines has 4 flights on this route every week with an average price of £473. United Airlines is rated 7.4/10 by our users.
Air Canada Flights From London to Ottawa
Across 10,297 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 £576. Price data is based on momondo searches in the last 72 hours.

Smiths Falls

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.

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

Fri 14/11

Fri 21/11

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada

Airports servicing Ontario

Popular Cities in Canada

Flights to Torontofrom £337

Flights to Vancouverfrom £365

Flights to Calgaryfrom £302

Flights to Montrealfrom £352

Flights to Winnipegfrom £446

Flights to Halifaxfrom £448

Flights to Saskatoonfrom £485

Flights to Kelownafrom £412

Flights to Reginafrom £431

Flights to St. John'sfrom £497

Flights to Québec Cityfrom £386

Flights to Charlottetownfrom £531

Cheap flights from London to Ottawa from £273

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 15/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to Ottawa

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Air Transat flights from London to Ottawa

Our best Air Transat deals on London to Ottawa flight tickets

Lufthansa flights from London to Ottawa

Our best Lufthansa deals on London to Ottawa flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from London to Ottawa that are best for you.

See travel insights to Ottawa from

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 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 October 2025, prices for London to Ottawa flights are approximately 20% cheaper when compared to flights at the same time last year.

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

Virgin Atlantic, KLM, 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: 48% 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 £518.

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?

Paris (CDG) has the shortest average stopover time for this route: 2h 39m.

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 October 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 October 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.

Find better results for your trip to Canada