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

Toronto (YYZ) was the most common stop: 61% of momondo users choosing one-stop flights on this route connected there.

Which airlines fly to London?

Air Canada, British Airways and Lufthansa are the top three most popular airlines that fly to London from Ottawa according to our data. Air Canada is the first choice among our users, with 64% of people opting to fly with this airline when travelling to London. Keep in mind that there are 11 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

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

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

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

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

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

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

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 9h 25m.

How often are flights from Ottawa to London delayed?

Historically, on average around 13% of flights between Ottawa and London have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

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

Flights via Calgary (YYC) offer the lowest average round-trip price of C$ 852.

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

According to our data, Air Canada has had the least delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

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

Montreal (YUL) has the shortest average layover time for this route: 1h 42m.

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

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

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

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

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

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 Ottawa Airport to London.

What documentation or ID do you need to fly to London?

The travel and health documents you'll need for your trip to London 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 London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 346 Cheap Flights from Ottawa to London in 2025/26

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

Prices are currently low for flights on this route. Typical prices usually range from C$ 1,078 to C$ 1,474. The lowest price recently found on this route was C$ 911.

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10:00 a.m. - 9:45 a.m.YOW-LGW

19h 45m1 stop

11:40 a.m. - 8:25 a.m.LGW-YOW

24h 45m1 stop

C$ 911Air Transat

Find Deal

Fri, 13 Mar - Fri, 20 Mar

10:50 a.m. - 7:10 a.m.YOW-LHR

15h 20m1 stop

8:05 p.m. - 5:42 p.m.LHR-YOW

26h 37m2 stops

C$ 911Multiple Airlines

Find Deal

Mon, 2 Feb - Mon, 9 Feb

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

20h 00m1 stop

3:00 p.m. - 3:10 p.m.LHR-YOW

29h 10m1 stop

C$ 913Air France

Find Deal

Thu, 19 Feb - Sat, 28 Feb

9:30 a.m. - 10:00 a.m.YOW-LGW

19h 30m1 stop

2:00 p.m. - 5:13 p.m.LGW-YOW

32h 13m1 stop

C$ 913Multiple Airlines

Find Deal

Thu, 15 Jan - Mon, 19 Jan

5:15 p.m. - 8:00 a.m.YOW-LHR

9h 45m1 stop

9:00 a.m. - 3:05 p.m.LHR-YOW

11h 05m1 stop

C$ 921Virgin Atlantic

Find Deal

Tue, 21 Apr - Wed, 27 May

5:15 p.m. - 1:45 p.m.YOW-LHR

15h 30m1 stop

6:15 a.m. - 3:05 p.m.LHR-YOW

13h 50m1 stop

C$ 923Air France

Find Deal

Tue, 28 Apr - Tue, 12 May

10:45 a.m. - 8:05 a.m.YOW-LHR

16h 20m2 stops

6:00 a.m. - 5:42 p.m.LHR-YOW

16h 42m2 stops

C$ 924SWISS

Find Deal

Thu, 15 Jan - Mon, 19 Jan

10:50 a.m. - 8:40 a.m.YOW-LCY

16h 50m2 stops

9:15 a.m. - 5:42 p.m.LCY-YOW

13h 27m2 stops

C$ 1,013SWISS

Find Deal

Mon, 2 Feb - Tue, 10 Feb

4:00 p.m. - 5:40 p.m.YOW-LCY

20h 40m2 stops

9:55 a.m. - 6:38 p.m.LCY-YOW

37h 43m2 stops

C$ 1,050Lufthansa

Find Deal

Mon, 19 Jan - Fri, 23 Jan

4:00 p.m. - 5:40 p.m.YOW-LCY

20h 40m2 stops

9:55 a.m. - 6:38 p.m.LCY-YOW

37h 43m2 stops

C$ 1,051Lufthansa

Find Deal

Mon, 19 Jan - Fri, 23 Jan

Air France flights from Ottawa to London

Our best Air France deals on Ottawa to London flight tickets

Air France

19 Feb

YOW5:20 p.m.Ottawa

12h 10m

1 stop

LHR10:30 a.m.London Heathrow

28 Feb

LHR3:00 p.m.London Heathrow

29h 10m

1 stop

YOW3:10 p.m.Ottawa

C$ 913

Find similar

Air France

28 Apr

YOW5:15 p.m.Ottawa

15h 30m

1 stop

LHR1:45 p.m.London Heathrow

12 May

LHR6:15 a.m.London Heathrow

13h 50m

1 stop

YOW3:05 p.m.Ottawa

C$ 923

Find similar

Air France

27 Feb

YOW5:20 p.m.Ottawa

9h 35m

1 stop

LHR7:55 a.m.London Heathrow

3 Mar

LHR6:20 a.m.London Heathrow

13h 50m

1 stop

YOW3:10 p.m.Ottawa

C$ 944

Find similar

SWISS flights from Ottawa to London

Our best SWISS deals on Ottawa to London flight tickets

SWISS

15 Jan

YOW10:45 a.m.Ottawa

16h 20m

2 stops

LHR8:05 a.m.London Heathrow

19 Jan

LHR6:00 a.m.London Heathrow

16h 42m

2 stops

YOW5:42 p.m.Ottawa

C$ 924

Find similar

SWISS

27 Jan

YOW6:20 p.m.Ottawa

32h 45m

2 stops

LHR8:05 a.m.London Heathrow

10 Feb

LHR6:00 a.m.London Heathrow

16h 42m

2 stops

YOW5:42 p.m.Ottawa

C$ 937

Find similar

SWISS

2 Dec

YOW4:00 p.m.Ottawa

19h 40m

2 stops

LHR4:40 p.m.London Heathrow

9 Dec

LHR9:00 a.m.London Heathrow

13h 42m

2 stops

YOW5:42 p.m.Ottawa

C$ 948

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 13/3

10:00 a.m.-9:45 a.m.

1 stop19h 45m

London Gatwick

Fri 20/3

11:40 a.m.-8:25 a.m.

1 stop24h 45m

C$ 911

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Mon 2/2

10:50 a.m.-7:10 a.m.

1 stop15h 20m

London Heathrow

Mon 9/2

8:05 p.m.-5:42 p.m.

2 stops26h 37m

C$ 911

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Thu 19/2

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

1 stop20h 00m

London Heathrow

Sat 28/2

3:00 p.m.-3:10 p.m.

1 stop29h 10m

C$ 913

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Thu 15/1

9:30 a.m.-10:00 a.m.

1 stop19h 30m

London Gatwick

Mon 19/1

2:00 p.m.-5:13 p.m.

1 stop32h 13m

C$ 913

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Tue 21/4

5:15 p.m.-8:00 a.m.

1 stop9h 45m

London Heathrow

Wed 27/5

9:00 a.m.-3:05 p.m.

1 stop11h 05m

C$ 921

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Tue 28/4

5:15 p.m.-1:45 p.m.

1 stop15h 30m

London Heathrow

Tue 12/5

6:15 a.m.-3:05 p.m.

1 stop13h 50m

C$ 923

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Thu 15/1

10:45 a.m.-8:05 a.m.

2 stops16h 20m

London Heathrow

Mon 19/1

6:00 a.m.-5:42 p.m.

2 stops16h 42m

C$ 924

OttawaLondon

YOW - LCY

YOWLCY

Ottawa

Mon 2/2

10:50 a.m.-8:40 a.m.

2 stops16h 50m

London City

Tue 10/2

9:15 a.m.-5:42 p.m.

2 stops13h 27m

C$ 1,013

OttawaLondon

YOW - LCY

YOWLCY

Ottawa

Mon 19/1

4:00 p.m.-5:40 p.m.

2 stops20h 40m

London City

Fri 23/1

9:55 a.m.-6:38 p.m.

2 stops37h 43m

C$ 1,050

OttawaLondon

YOW - LCY

YOWLCY

Ottawa

Mon 19/1

4:00 p.m.-5:40 p.m.

2 stops20h 40m

London City

Fri 23/1

9:55 a.m.-6:38 p.m.

2 stops37h 43m

C$ 1,051

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ottawa to London

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

What is the cheapest month to fly to London?

In general, February is the cheapest month to fly from Ottawa to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 927. If you aren’t able to travel to London during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of C$ 995.

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

According to our data, Thursday is the cheapest day to fly to London from Ottawa. The lowest ticket price found for a Thursday departure recently was C$ 1,104. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to London for around C$ 1,226.

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

Our most recent data shows that the best time of day to fly to London is in the morning. Flights from Ottawa to London during this time can be as low as C$ 1,098. At noon is when there is more demand to fly to London, so prices are often more expensive at around C$ 1,159 per ticket.

What is the cheapest Ottawa to London flight route?

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

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

You are more likely to see cheaper flights to London from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around C$ 1,089 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Ottawa for as low as C$ 1,014 on momondo.

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

There are 3 cabin classes available to choose from on Ottawa to London 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 Ottawa to London flights?

You could potentially save up to 63% on your flight if you consider stops on a Ottawa to London flight.

How have Ottawa to London flight prices changed over time?

As of November 2025, prices for Ottawa to London flights are approximately 15% cheaper when compared to flights at the same time last year.

When to book flights from Ottawa to London

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

Estimated round-trip price

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

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

Best price found	C$ 854
Fastest flight time	6h 25m
Direct flights	Mon, Thu and Sat
Airports in London	1 airport

The best one-way flight to London from Ottawa in the past 72 hours is C$ 854. The best round-trip flight deal from Ottawa to London found on momondo in the last 72 hours is C$ 940.

The fastest flight from Ottawa to London takes 6h 25m

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

There is 1 airport near London: London Heathrow (LHR)

Search flight deals

How far is Ottawa to London by plane?
A flight from Ottawa to London will travel around 5358.1 km. In terms of flight time, this usually takes a little over 6h 25m.
When did momondo last update prices for flights from Ottawa Airport to London?
Prices for flights from Ottawa Airport to London were last updated today.
How many operators does momondo search for flights from Ottawa Airport to London?
As of November 2025, there are 7 operators available to choose from for flights from Ottawa Airport to London.
How old do you have to be to fly from Ottawa Airport to London?
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 Ottawa Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London 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 London. 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 Ottawa to London?
Based on momondo bookings for flights between Ottawa and London, the leading plane model is Boeing 787-9 Dreamliner, making up 44.40% of the total bookings. Other popular models include Boeing 787-8 Dreamliner with 34.33%, Airbus A330-300 with 16.42%, and Airbus A321neo with 1.12%.
What is the most popular airline from Ottawa to London?
momondo data reveals that the most frequently booked airline on the route from Ottawa to London is Air Canada, representing 70% of all bookings. The subsequent popular airlines are Lufthansa at 9%, Air Transat at 6%, and Air France at 6%.

Best airlines flying from Ottawa to London

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

Airline	Rating	Free Cancellation	Price
Air Transat	PriceFrom C$ 697	Free Cancellation	Rating 7.8 478 reviews	Search Air Transat flights
Air France	PriceFrom C$ 745	Free Cancellation	Rating 7.4 1,497 reviews	Search Air France flights
Virgin Atlantic	PriceFrom C$ 748	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
Porter Airlines	PriceFrom C$ 802	Free Cancellation	Rating 8.0 394 reviews	Search Porter Airlines flights
United Airlines	PriceFrom C$ 909	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 913	Free Cancellation	Rating 7.1 10,476 reviews	Search Air Canada flights
Lufthansa	PriceFrom C$ 970	Free Cancellation	Rating 6.8 7,594 reviews	Search Lufthansa flights

United Airlines Flights From Ottawa to London
The lowest priced United Airlines flight from Ottawa to London from the last 72 hours was C$ 909. Generally, United Airlines has 3 flights on this route every week with an average price of C$ 1,132. United Airlines is rated 7.4/10 by our users.
Air Canada Flights From Ottawa to London
Another popular option for Ottawa to London flights is Air Canada (7.1/10, 10,476 ratings). Air Canada flies from Ottawa to London around 1 time per week, with deals starting from C$ 913 round-trip and rising to an average price of around C$ 1,061.

Hounslow

Ipswich

Dartford

Gatwick

Ilford

Chelmsford

Wokingham

Slough

Canterbury

Feltham

Hayes

Uxbridge

Wembley

Waterlooville

Newport

Basingstoke

Milton Keynes

Dover

Worthing

Maidstone

Why use momondo?

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

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 Ottawa to London for you.

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

Yes. momondo allows you to filter the results for Ottawa to London flights to just show those with flexible booking policies.

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

Once you have performed a search for Ottawa to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Ottawa to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Flights to Cardifffrom C$ 995

Cheap flights from Ottawa to London from C$ 346

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to London departing on 26/1. 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

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Find the cheapest flights from Ottawa to London

Cheap round-trip flights

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Cheap last-minute flights

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Air France flights from Ottawa to London

Our best Air France deals on Ottawa to London flight tickets

SWISS flights from Ottawa to London

Our best SWISS deals on Ottawa to London flight tickets

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How to get the cheapest flight ticket from Ottawa to London

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 Ottawa and London?

What is the cheapest month to fly to London?

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

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

Our most recent data shows that the best time of day to fly to London is in the morning. Flights from Ottawa to London during this time can be as low as C$ 1,098. At noon is when there is more demand to fly to London, so prices are often more expensive at around C$ 1,159 per ticket.

What is the cheapest Ottawa to London flight route?

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

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

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

There are 3 cabin classes available to choose from on Ottawa to London 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 Ottawa to London flights?

You could potentially save up to 63% on your flight if you consider stops on a Ottawa to London flight.

How have Ottawa to London flight prices changed over time?

As of November 2025, prices for Ottawa to London flights are approximately 15% cheaper when compared to flights at the same time last year.

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

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

Which airlines fly to London?

How often are flights from Ottawa to London delayed?

Historically, on average around 13% of flights between Ottawa and London have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

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

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

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

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

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

According to our data, Air Canada has had the least delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

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

Toronto (YYZ) was the most common stop: 61% of momondo users choosing one-stop flights on this route connected there.

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

Flights via Calgary (YYC) offer the lowest average round-trip price of C$ 852.

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

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 9h 25m.

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

Montreal (YUL) has the shortest average layover time for this route: 1h 42m.

When to book flights from Ottawa to London

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

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

Best price found

Fastest flight time

Direct flights

Airports in London

How far is Ottawa to London by plane?

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

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

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

What documentation or ID do you need to fly to London?

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

What is the most popular airline from Ottawa to London?

Best airlines flying from Ottawa to London

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

United Airlines Flights From Ottawa to London

Air Canada Flights From Ottawa to London

Travelling to a place near London?

Why use momondo?

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

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

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