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

The number of flights available between Ottawa and London is 16 per week as of November 2025. The most frequent departure day is Wed, with 38% of weekly flights leaving on this day.

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

As of November 2025, 2 flights take off from Ottawa and land in London each day. The most common flight departure time for this route is 9:00p.m., with 100% of daily flights taking off in the evening.

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

Toronto (YYZ) was the most common stop: 59% of momondo users choosing one-stop flights on this route connected there.

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.

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

WestJet is the most popular carrier operating from Ottawa to London

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 63% 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.

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

Flights via Calgary (YYC) offer the lowest average round-trip price of C$ 846.

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$ 357 Cheap Flights from Ottawa to London in 2025/26

1 adult

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5:20 p.m. - 8:00 a.m.YOW-LHR

9h 40m1 stop

11:30 a.m. - 3:10 p.m.LHR-YOW

32h 40m1 stop

C$ 909Air France

Find Deal

Wed, 10 Dec - Thu, 15 Jan

2:00 p.m. - 7:10 a.m.YOW-LHR

12h 10m2 stops

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

7h 30mdirect

C$ 911Multiple Airlines

Find Deal

Mon, 2 Feb - Sun, 15 Feb

2:00 p.m. - 7:10 a.m.YOW-LHR

12h 10m2 stops

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

7h 30mdirect

C$ 912Multiple Airlines

Find Deal

Wed, 11 Feb - Sun, 22 Feb

4:00 p.m. - 7:10 a.m.YOW-LHR

10h 10m1 stop

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

7h 30mdirect

C$ 914Multiple Airlines

Find Deal

Wed, 26 Nov - Fri, 12 Dec

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

19h 45m1 stop

12:40 p.m. - 8:05 a.m.LGW-YOW

24h 25m1 stop

C$ 930Air Transat

Find Deal

Fri, 24 Apr - Sun, 17 May

11:20 a.m. - 10:45 a.m.YOW-LGW

18h 25m1 stop

9:40 a.m. - 12:40 p.m.LGW-YOW

8h 00mdirect

C$ 936Air Transat

Find Deal

Thu, 7 May - Sun, 24 May

7:00 a.m. - 10:45 a.m.YOW-LGW

22h 45m1 stop

12:40 p.m. - 8:05 a.m.LGW-YOW

24h 25m1 stop

C$ 967Porter Airlines

Find Deal

Fri, 8 May - Wed, 13 May

5:20 p.m. - 4:35 p.m.YOW-LCY

18h 15m2 stops

5:05 p.m. - 3:10 p.m.LCY-YOW

27h 05m2 stops

C$ 992KLM

Find Deal

Sun, 15 Feb - Thu, 19 Feb

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

16h 50m2 stops

9:20 a.m. - 7:18 p.m.LCY-YOW

14h 58m2 stops

C$ 1,047SWISS

Find Deal

Mon, 2 Feb - Wed, 18 Feb

10:45 a.m. - 8:40 a.m.YOW-LCY

16h 55m2 stops

9:20 a.m. - 7:18 p.m.LCY-YOW

14h 58m2 stops

C$ 1,070SWISS

Find Deal

Mon, 12 Jan - Fri, 23 Jan

Air Canada flights from Ottawa to London

Our best Air Canada deals on Ottawa to London flight tickets

Air Canada

28 Nov

YOW9:55 p.m.Ottawa

6h 25m

LHR9:20 a.m.London Heathrow

5 Dec

LHR12:00 p.m.London Heathrow

7h 30m

YOW2:30 p.m.Ottawa

C$ 923

Find similar

Air Canada

27 Nov

YOW4:00 p.m.Ottawa

10h 10m

1 stop

LHR7:10 a.m.London Heathrow

10 Dec

LHR12:00 p.m.London Heathrow

7h 30m

YOW2:30 p.m.Ottawa

C$ 925

Find similar

Air Canada

14 Nov

YOW9:55 p.m.Ottawa

6h 25m

LHR9:20 a.m.London Heathrow

21 Nov

LHR9:00 a.m.London Heathrow

10h 21m

1 stop

YOW2:21 p.m.Ottawa

C$ 926

Find similar

TAP AIR PORTUGAL flights from Ottawa to London

Our best TAP AIR PORTUGAL deals on Ottawa to London flight tickets

TAP AIR PORTUGAL

17 Nov

YOW8:00 p.m.Ottawa

20h 35m

2 stops

LHR9:35 p.m.London Heathrow

17 Dec

LHR8:15 a.m.London Heathrow

19h 05m

2 stops

YOW10:20 p.m.Ottawa

C$ 1,439

Find similar

TAP AIR PORTUGAL

17 Nov

YOW8:00 p.m.Ottawa

16h 30m

2 stops

LHR5:30 p.m.London Heathrow

17 Dec

LHR8:15 a.m.London Heathrow

22h 23m

2 stops

YOW1:38 a.m.Ottawa

C$ 1,449

Find similar

TAP AIR PORTUGAL

17 Nov

YOW8:00 p.m.Ottawa

16h 30m

2 stops

LHR5:30 p.m.London Heathrow

17 Dec

LHR1:40 p.m.London Heathrow

33h 58m

2 stops

YOW6:38 p.m.Ottawa

C$ 1,460

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 10/12

5:20 p.m.-8:00 a.m.

1 stop9h 40m

London Heathrow

Thu 15/1

11:30 a.m.-3:10 p.m.

1 stop32h 40m

C$ 909

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Mon 2/2

2:00 p.m.-7:10 a.m.

2 stops12h 10m

London Heathrow

Sun 15/2

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

Nonstop7h 30m

C$ 911

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 11/2

2:00 p.m.-7:10 a.m.

2 stops12h 10m

London Heathrow

Sun 22/2

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

Nonstop7h 30m

C$ 912

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 26/11

4:00 p.m.-7:10 a.m.

1 stop10h 10m

London Heathrow

Fri 12/12

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

Nonstop7h 30m

C$ 914

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 24/4

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

1 stop19h 45m

London Gatwick

Sun 17/5

12:40 p.m.-8:05 a.m.

1 stop24h 25m

C$ 930

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Thu 7/5

11:20 a.m.-10:45 a.m.

1 stop18h 25m

London Gatwick

Sun 24/5

9:40 a.m.-12:40 p.m.

Nonstop8h 00m

C$ 936

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Fri 8/5

7:00 a.m.-10:45 a.m.

1 stop22h 45m

London Gatwick

Wed 13/5

12:40 p.m.-8:05 a.m.

1 stop24h 25m

C$ 967

OttawaLondon

YOW - LCY

YOWLCY

Ottawa

Sun 15/2

5:20 p.m.-4:35 p.m.

2 stops18h 15m

London City

Thu 19/2

5:05 p.m.-3:10 p.m.

2 stops27h 05m

C$ 992

OttawaLondon

YOW - LCY

YOWLCY

Ottawa

Mon 2/2

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

2 stops16h 50m

London City

Wed 18/2

9:20 a.m.-7:18 p.m.

2 stops14h 58m

C$ 1,047

OttawaLondon

YOW - LCY

YOWLCY

Ottawa

Mon 12/1

10:45 a.m.-8:40 a.m.

2 stops16h 55m

London City

Fri 23/1

9:20 a.m.-7:18 p.m.

2 stops14h 58m

C$ 1,070

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

Layovers

Other information

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$ 915. If you aren’t able to travel to London during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of C$ 993.

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$ 1,100. 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$ 1,305.

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$ 1,090. At noon is when there is more demand to fly to London, so prices are often more expensive at around C$ 1,151 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$ 1,086 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$ 1,007 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 19% 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$ 986
Fastest flight time	6h 25m
Direct flights	Mon, Tue, Thu, Fri and Sat
Airports in London	1 airport

The best one-way flight to London from Ottawa in the past 72 hours is C$ 986. The best round-trip flight deal from Ottawa to London found on momondo in the last 72 hours is C$ 988.

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

Direct flights go from Ottawa to London on Monday, Tuesday, Thursday, Friday 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 65.38% of the total bookings. Other popular models include Boeing 787-8 Dreamliner with 19.55%, Airbus A330-300 with 10.90%, and Airbus A321neo with 0.96%.
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 69% 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$ 692	Free Cancellation	Rating 7.8 471 reviews	Search Air Transat flights
Air France	PriceFrom C$ 740	Free Cancellation	Rating 7.4 1,487 reviews	Search Air France flights
Virgin Atlantic	PriceFrom C$ 743	Free Cancellation	Rating 7.5 673 reviews	Search Virgin Atlantic flights
Porter Airlines	PriceFrom C$ 797	Free Cancellation	Rating 8.0 389 reviews	Search Porter Airlines flights
United Airlines	PriceFrom C$ 903	Free Cancellation	Rating 7.4 9,016 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 908	Free Cancellation	Rating 7.1 10,444 reviews	Search Air Canada flights
Lufthansa	PriceFrom C$ 964	Free Cancellation	Rating 6.8 7,572 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$ 903. Generally, United Airlines has 3 flights on this route every week with an average price of C$ 1,124. 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, 10,444 ratings). Air Canada flies from Ottawa to London around 1 time per week, with deals starting from C$ 908 round-trip and rising to an average price of around C$ 1,063.

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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Fly into one of these airports located in London

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Flights to Edinburghfrom C$ 687

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Flights to Glasgowfrom C$ 719

Flights to Birminghamfrom C$ 738

Flights to Newcastle upon Tynefrom C$ 817

Flights to Belfastfrom C$ 859

Flights to Bristolfrom C$ 713

Flights to Aberdeenfrom C$ 919

Flights to Leedsfrom C$ 738

Flights to Liverpoolfrom C$ 754

Flights to Invernessfrom C$ 741

Flights to Cardifffrom C$ 1,052

Cheap flights from Ottawa to London from C$ 357

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 12/1. 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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Filter for what you want

Trusted and free

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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 Canada flights from Ottawa to London

Our best Air Canada deals on Ottawa to London flight tickets

TAP AIR PORTUGAL flights from Ottawa to London

Our best TAP AIR PORTUGAL deals on Ottawa to London flight tickets

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

See travel insights to London from

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 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$ 1,090. At noon is when there is more demand to fly to London, so prices are often more expensive at around C$ 1,151 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 19% 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 is the most popular carrier operating from Ottawa to London

Which airlines fly to London?

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

Toronto (YYZ) was the most common stop: 59% 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$ 846.

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.

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

As of November 2025, 2 flights take off from Ottawa and land in London each day. The most common flight departure time for this route is 9:00p.m., with 100% of daily flights taking off in the evening.

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

The number of flights available between Ottawa and London is 16 per week as of November 2025. The most frequent departure day is Wed, with 38% of weekly flights leaving on this day.

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?

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

An easier way to manage your London 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

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