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

Paris (CDG) was the most common stop: 75% of momondo users choosing one-stop flights on this route connected there.

How often are flights from London to Ottawa delayed?

Historically, on average around 8% of flights between London and Ottawa have experienced a delay on any given week. The average delay length over the past 12 months has been 231 minutes.

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

Paris (CDG) has the shortest average layover time for this route: 1h 30m.

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 62% of people opting to fly with this airline when travelling to Ottawa. Keep in mind that there are 5 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

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

Air Transat, WestJet, and SWISS are the most popular carriers operating from London to Ottawa

What day of the week experiences the fewest flight delays on this route?

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

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

Flights via Paris (CDG) offer the lowest average round-trip price of C$ 377.

What is the most punctual flight time for London to Ottawa flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

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

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 11h 10m.

Which airline has the best punctuality record on London to Ottawa flights?

According to our data, Air Canada has had the least delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

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

Prices for flights from London to Ottawa Airport refresh daily.

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

As of December 2025, there are 3 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 for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Ottawa Airport.

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

The travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 486 Cheap Flights from London to Ottawa in 2025/26

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Find the cheapest flights from London to Ottawa

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:25 p.m. - 5:16 p.m.

LHR

YOW

32h 51m2 stops

9:55 p.m. - 9:20 a.m.

YOW

LHR

6h 25mdirect

C$ 889Multiple Airlines

Wed, 25 Feb - Sun, 1 Mar

1:25 p.m. - 11:21 a.m.

LHR

YOW

26h 56m2 stops

9:55 p.m. - 9:20 a.m.

YOW

LHR

6h 25mdirect

C$ 891Multiple Airlines

Thu, 26 Feb - Wed, 4 Mar

2:45 p.m. - 12:39 a.m.

LHR

YOW

14h 54m2 stops

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

YOW

LHR

20h 00m1 stop

C$ 895Air France

Wed, 25 Feb - Sun, 1 Mar

9:00 a.m. - 5:40 p.m.

LHR

YOW

13h 40m2 stops

9:55 p.m. - 9:20 a.m.

YOW

LHR

6h 25mdirect

C$ 896Multiple Airlines

Fri, 26 Dec - Sun, 11 Jan

5:35 p.m. - 3:10 p.m.

LHR

YOW

26h 35m1 stop

5:20 p.m. - 10:30 a.m.

YOW

LHR

12h 10m1 stop

C$ 900Virgin Atlantic

Wed, 25 Feb - Tue, 3 Mar

11:40 a.m. - 6:28 p.m.

LGW

YOW

11h 48m1 stop

6:55 p.m. - 9:45 a.m.

YOW

LGW

9h 50m1 stop

C$ 909Air Transat

Mon, 9 Feb - Mon, 23 Feb

11:40 a.m. - 6:33 p.m.

LGW

YOW

11h 53m1 stop

6:55 p.m. - 9:45 a.m.

YOW

LGW

9h 50m1 stop

C$ 910Air Transat

Sun, 15 Feb - Tue, 24 Feb

1:25 p.m. - 9:46 a.m.

LHR

YOW

25h 21m2 stops

9:55 p.m. - 9:20 a.m.

YOW

LHR

6h 25mdirect

C$ 915Air Canada

Wed, 25 Feb - Sun, 1 Mar

12:00 p.m. - 2:30 p.m.

LHR

YOW

7h 30mdirect

10:30 a.m. - 7:10 a.m.

YOW

LHR

15h 40m2 stops

C$ 917Air Canada

Wed, 25 Feb - Tue, 3 Mar

5:15 p.m. - 3:05 p.m.

LGW

YOW

26h 50m1 stop

5:25 p.m. - 4:05 p.m.

YOW

LGW

17h 40m1 stop

C$ 917Air France

Thu, 21 May - Wed, 27 May

SWISS flights from London to Ottawa

Our best SWISS deals on London to Ottawa flight tickets

SWISS

26 Dec

LHR9:00 a.m.London Heathrow

13h 40m

2 stops

YOW5:40 p.m.Ottawa

11 Jan

YOW6:20 p.m.Ottawa

14h 20m

2 stops

LHR1:40 p.m.London Heathrow

C$ 925

Find similar

SWISS

17 Jan

LGW6:40 p.m.London Gatwick

29h 38m

2 stops

YOW7:18 p.m.Ottawa

25 Jan

YOW10:45 a.m.Ottawa

26h 05m

2 stops

LGW5:50 p.m.London Gatwick

C$ 939

Find similar

SWISS

25 Dec

LHR9:00 a.m.London Heathrow

13h 40m

2 stops

YOW5:40 p.m.Ottawa

11 Jan

YOW6:20 p.m.Ottawa

19h 20m

2 stops

LHR6:40 p.m.London Heathrow

C$ 971

Find similar

Air Transat flights from London to Ottawa

Our best Air Transat deals on London to Ottawa flight tickets

Air Transat

25 Dec

LGW11:40 a.m.London Gatwick

18h 01m

1 stop

YOW12:41 a.m.Ottawa

13 Jan

YOW6:55 p.m.Ottawa

9h 50m

1 stop

LGW9:45 a.m.London Gatwick

C$ 902

Find similar

Air Transat

25 Dec

LGW11:40 a.m.London Gatwick

11h 45m

1 stop

YOW6:25 p.m.Ottawa

11 Jan

YOW6:55 p.m.Ottawa

9h 50m

1 stop

LGW9:45 a.m.London Gatwick

C$ 903

Find similar

Air Transat

9 Feb

LGW11:40 a.m.London Gatwick

11h 48m

1 stop

YOW6:28 p.m.Ottawa

23 Feb

YOW6:55 p.m.Ottawa

9h 50m

1 stop

LGW9:45 a.m.London Gatwick

C$ 909

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

1:25 p.m.-5:16 p.m.

2 stops32h 51m

Ottawa

Sun 1/3

9:55 p.m.-9:20 a.m.

Nonstop6h 25m

C$ 889

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 26/2

1:25 p.m.-11:21 a.m.

2 stops26h 56m

Ottawa

Wed 4/3

9:55 p.m.-9:20 a.m.

Nonstop6h 25m

C$ 891

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

2:45 p.m.-12:39 a.m.

2 stops14h 54m

Ottawa

Sun 1/3

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

1 stop20h 00m

C$ 895

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 26/12

9:00 a.m.-5:40 p.m.

2 stops13h 40m

Ottawa

Sun 11/1

9:55 p.m.-9:20 a.m.

Nonstop6h 25m

C$ 896

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

5:35 p.m.-3:10 p.m.

1 stop26h 35m

Ottawa

Tue 3/3

5:20 p.m.-10:30 a.m.

1 stop12h 10m

C$ 900

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Mon 9/2

11:40 a.m.-6:28 p.m.

1 stop11h 48m

Ottawa

Mon 23/2

6:55 p.m.-9:45 a.m.

1 stop9h 50m

C$ 909

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sun 15/2

11:40 a.m.-6:33 p.m.

1 stop11h 53m

Ottawa

Tue 24/2

6:55 p.m.-9:45 a.m.

1 stop9h 50m

C$ 910

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

1:25 p.m.-9:46 a.m.

2 stops25h 21m

Ottawa

Sun 1/3

9:55 p.m.-9:20 a.m.

Nonstop6h 25m

C$ 915

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 25/2

12:00 p.m.-2:30 p.m.

Nonstop7h 30m

Ottawa

Tue 3/3

10:30 a.m.-7:10 a.m.

2 stops15h 40m

C$ 917

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 21/5

5:15 p.m.-3:05 p.m.

1 stop26h 50m

Ottawa

Wed 27/5

5:25 p.m.-4:05 p.m.

1 stop17h 40m

C$ 917

Flights are sorted by cheapest round-trip flights first.

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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

Prices

Airlines

Delays

Layovers

Other information

What is the cheapest month to fly to Ottawa?

The month of January is, on average, the cheapest month to fly to Ottawa from London, with most prices found around C$ 877. If you aren’t able to travel to Ottawa during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of C$ 903.

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

Our data shows that Friday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 939. Flights from London to Ottawa on a Sunday will generally be more expensive and average around C$ 2,040. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Ottawa is in the morning. Flights from London to Ottawa during this time can be as low as C$ 1,012. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,114 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 C$ 1,020 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from London for as low as C$ 692 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 36% 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 December 2025, prices for London to Ottawa flights are approximately 34% 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 round-trip 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	C$ 878
Fastest flight time	7h 30m
Direct flights	Mon, Tue, Thu, Fri, Sat and Sun
Airports in Ottawa	1 airport

The best flight deal from London to Ottawa found on momondo in the last 72 hours is C$ 878

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

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

There is 1 airport in Ottawa. From London there are direct flights to Ottawa (YOW).

Search flight deals

How far is London to Ottawa by plane?
London and Ottawa are 5358.1 km apart from one another. Typically, this will take 7h 30m by plane in normal conditions.
When did momondo last update prices for flights from London to Ottawa Airport?
Prices for flights from London to Ottawa Airport refresh daily.
How many operators does momondo search for flights from London to Ottawa Airport?
As of December 2025, there are 3 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 for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London to Ottawa?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Ottawa is Boeing 787-8 Dreamliner (25.15% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (18.53%), Boeing 777-300ER (14.32%), and Boeing 777 (7.58%).
What is the most popular airline from London to Ottawa?
Based on momondo bookings for flights between London and Ottawa, the leading airline is Air Canada, making up 73% of the total bookings. Other popular airlines include Air Transat with 14% and Lufthansa with 12%.

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 France	PriceFrom C$ 793	Free Cancellation	Rating 7.4 1,506 reviews	Search Air France flights
Air Canada	PriceFrom C$ 799	Free Cancellation	Rating 7.1 10,531 reviews	Search Air Canada flights
Lufthansa	PriceFrom C$ 851	Free Cancellation	Rating 6.8 7,632 reviews	Search Lufthansa flights

Gatineau

Pembroke

Brockville

Perth

Smiths Falls

Wakefield

Prescott

Petawawa

Calabogie

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Ottawa . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Ottawa from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London 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 London.

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 C$ 486

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 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names, great deals

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Find the cheapest flights from London to Ottawa

Cheap round-trip flights

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Cheap last-minute flights

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SWISS flights from London to Ottawa

Our best SWISS deals on London to Ottawa flight tickets

Air Transat flights from London to Ottawa

Our best Air Transat deals on London to Ottawa flight tickets

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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

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?

Our most recent data shows that the best time of day to fly to Ottawa is in the morning. Flights from London to Ottawa during this time can be as low as C$ 1,012. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,114 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?

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 36% 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 December 2025, prices for London to Ottawa flights are approximately 34% cheaper when compared to flights at the same time last year.

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

Air Transat, WestJet, and SWISS are the most popular carriers operating from London to Ottawa

Which airlines fly to Ottawa?

How often are flights from London to Ottawa delayed?

Historically, on average around 8% of flights between London and Ottawa have experienced a delay on any given week. The average delay length over the past 12 months has been 231 minutes.

What is the most punctual flight time for London to Ottawa flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to Ottawa flights?

According to our data, Air Canada has had the least delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

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

Paris (CDG) was the most common stop: 75% of momondo users choosing one-stop flights on this route connected there.

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

Flights via Paris (CDG) offer the lowest average round-trip price of C$ 377.

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

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 11h 10m.

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

Paris (CDG) has the shortest average layover time for this route: 1h 30m.

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

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, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down