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

Paris (CDG) has the shortest average layover time for this route: 2h 21m.

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: 12h 03m.

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?

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Friday 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 Toronto (YYZ) offer the lowest average round-trip price of C$ 1,007.

How often are flights from London to Ottawa delayed?

Historically, on average around 11% 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 236 minutes.

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

Paris (CDG) was the most common stop: 60% of momondo users choosing one-stop flights on this route connected there.

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 63% 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.

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 11% of their flights experiencing any sort of delay.

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

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

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 February 2026, 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$ 459 Cheap Flights from London to Ottawa in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from C$ 802 to C$ 994. The lowest price recently found on this route was C$ 748.

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One-way

Last minute

Direct

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Enter your travel dates to find the best prices.

12:05 p.m. - 8:51 p.m.

LHR

YOW

13h 46m

1 stop

2:00 p.m. - 6:35 a.m.

YOW

LHR

11h 35m

1 stop

C$ 748Air Canada

Sun, 24 May - Sun, 7 Jun

9:30 a.m. - 11:54 p.m.

LHR

YOW

19h 24m

2 stops

6:00 a.m. - 6:55 a.m.

YOW

LHR

19h 55m

2 stops

C$ 755United Airlines

Sun, 24 May - Sun, 7 Jun

7:45 a.m. - 4:15 p.m.

LHR

YOW

13h 30m

1 stop

8:50 a.m. - 9:00 p.m.

YOW

LHR

31h 10m

1 stop

C$ 766Air Canada

Sat, 23 May - Wed, 27 May

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

LGW

YOW

11h 53m

1 stop

6:50 p.m. - 9:45 a.m.

YOW

LGW

9h 55m

1 stop

C$ 777Air Transat

Wed, 18 Feb - Sun, 22 Feb

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

LGW

YOW

25h 45m

1 stop

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

YOW

LGW

18h 45m

1 stop

C$ 780Air Transat

Thu, 19 Feb - Wed, 25 Feb

11:40 a.m. - 8:23 a.m.

LGW

YOW

24h 43m

1 stop

3:05 p.m. - 9:45 a.m.

YOW

LGW

14h 40m

1 stop

C$ 796Air Transat

Sat, 14 Mar - Thu, 26 Mar

9:40 p.m. - 12:39 a.m.

LGW

YOW

30h 59m

2 stops

5:40 a.m. - 4:10 p.m.

YOW

LGW

30h 30m

2 stops

C$ 807Multiple Airlines

Wed, 11 Mar - Fri, 20 Mar

9:45 p.m. - 12:39 a.m.

STN

YOW

30h 54m

2 stops

5:40 a.m. - 4:35 p.m.

YOW

STN

30h 55m

2 stops

C$ 814Multiple Airlines

Wed, 11 Mar - Fri, 20 Mar

9:20 a.m. - 5:41 p.m.

LCY

YOW

13h 21m

2 stops

6:05 p.m. - 12:55 p.m.

YOW

LCY

14h 50m

2 stops

C$ 1,019SWISS

Wed, 4 Mar - Sun, 8 Mar

9:20 a.m. - 10:18 p.m.

LCY

YOW

16h 58m

2 stops

2:50 p.m. - 11:40 a.m.

YOW

LCY

16h 50m

2 stops

C$ 1,176SWISS

Wed, 11 Mar - Fri, 20 Mar

Air France flights from London to Ottawa

Our best Air France deals on London to Ottawa flight tickets

Air France

1 Mar

LHR9:00 a.m.London Heathrow

11h 10m

1 stop

YOW3:10 p.m.Ottawa

8 Mar

YOW6:20 p.m.Ottawa

9h 40m

1 stop

LHR8:00 a.m.London Heathrow

C$ 894

Air France

18 Feb

LHR5:35 p.m.London Heathrow

26h 35m

1 stop

YOW3:10 p.m.Ottawa

22 Feb

YOW5:20 p.m.Ottawa

9h 35m

1 stop

LHR7:55 a.m.London Heathrow

C$ 912

Air France

16 Feb

LHR6:20 a.m.London Heathrow

13h 50m

1 stop

YOW3:10 p.m.Ottawa

7 Apr

YOW5:10 p.m.Ottawa

18h 25m

1 stop

LHR4:35 p.m.London Heathrow

C$ 916

SWISS flights from London to Ottawa

Our best SWISS deals on London to Ottawa flight tickets

SWISS

4 Mar

LCY9:20 a.m.London City

13h 21m

2 stops

YOW5:41 p.m.Ottawa

8 Mar

YOW6:05 p.m.Ottawa

14h 50m

2 stops

LCY12:55 p.m.London City

C$ 1,019

SWISS

11 Mar

LCY9:20 a.m.London City

16h 58m

2 stops

YOW10:18 p.m.Ottawa

20 Mar

YOW2:50 p.m.Ottawa

16h 50m

2 stops

LCY11:40 a.m.London City

C$ 1,176

SWISS

20 Jun

LCY9:00 a.m.London City

13h 34m

2 stops

YOW5:34 p.m.Ottawa

2 Jul

YOW2:25 p.m.Ottawa

13h 15m

2 stops

LCY8:40 a.m.London City

C$ 1,409

Fly from

Fly to

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 24/5

12:05 p.m.-8:51 p.m.

1 stop13h 46m

Ottawa

Sun 7/6

2:00 p.m.-6:35 a.m.

1 stop11h 35m

C$ 748

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sun 24/5

9:30 a.m.-11:54 p.m.

2 stops19h 24m

Ottawa

Sun 7/6

6:00 a.m.-6:55 a.m.

2 stops19h 55m

C$ 755

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Sat 23/5

7:45 a.m.-4:15 p.m.

1 stop13h 30m

Ottawa

Wed 27/5

8:50 a.m.-9:00 p.m.

1 stop31h 10m

C$ 766

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Wed 18/2

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

1 stop11h 53m

Ottawa

Sun 22/2

6:50 p.m.-9:45 a.m.

1 stop9h 55m

C$ 777

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 19/2

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

1 stop25h 45m

Ottawa

Wed 25/2

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

1 stop18h 45m

C$ 780

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Sat 14/3

11:40 a.m.-8:23 a.m.

1 stop24h 43m

Ottawa

Thu 26/3

3:05 p.m.-9:45 a.m.

1 stop14h 40m

C$ 796

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Wed 11/3

9:40 p.m.-12:39 a.m.

2 stops30h 59m

Ottawa

Fri 20/3

5:40 a.m.-4:10 p.m.

2 stops30h 30m

C$ 807

LondonOttawa

STN - YOW

STNYOW

London Stansted

Wed 11/3

9:45 p.m.-12:39 a.m.

2 stops30h 54m

Ottawa

Fri 20/3

5:40 a.m.-4:35 p.m.

2 stops30h 55m

C$ 814

LondonOttawa

LCY - YOW

LCYYOW

London City

Wed 4/3

9:20 a.m.-5:41 p.m.

2 stops13h 21m

Ottawa

Sun 8/3

6:05 p.m.-12:55 p.m.

2 stops14h 50m

C$ 1,019

LondonOttawa

LCY - YOW

LCYYOW

London City

Wed 11/3

9:20 a.m.-10:18 p.m.

2 stops16h 58m

Ottawa

Fri 20/3

2:50 p.m.-11:40 a.m.

2 stops16h 50m

C$ 1,176

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 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

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

What is the cheapest month to fly to Ottawa?

The month of February is, on average, the cheapest month to fly to Ottawa from London, with most prices found around C$ 907. If you aren’t able to travel to Ottawa during the month of February, then flying in May is also cheap. Prices for this month can be found on momondo for an average of C$ 907.

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

Our data shows that Sunday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 900. Flights from London to Ottawa on a Friday will generally be more expensive and average around C$ 1,369. 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$ 1,001. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,038 per ticket.

What is the cheapest London to Ottawa flight route?

Fly from London Gatwick 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$ 1,019 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 February 2026, prices for London to Ottawa flights are approximately 14% 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$ 800
Fastest flight time	7h 30m
Direct flights	Mon, Thu, Fri, Sat and Sun
Airports in Ottawa	1 airport

The best one-way flight to Ottawa from London in the past 72 hours is C$ 800. The best round-trip flight deal from London to Ottawa found on momondo in the last 72 hours is C$ 832.

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

Direct flights go from London to Ottawa on Monday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Air Transat.

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 February 2026, 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 (20.80% of total bookings). The next most popular plane models are Boeing 777-300ER (15.60%), Airbus A330-300 (14.40%), and Airbus A350-1000 (11.40%).
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 76% of the total bookings. Other popular airlines include Lufthansa with 13% and Air Transat 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$ 786	Free Cancellation	Rating 7.4 1,531 reviews	Search Air France flights
Air Canada	PriceFrom C$ 801	Free Cancellation	Rating 7.1 10,676 reviews	Search Air Canada flights
Lufthansa	PriceFrom C$ 844	Free Cancellation	Rating 6.8 7,758 reviews	Search Lufthansa flights

Gatineau

Pembroke

Brockville

Perth

Smiths Falls

Prescott

Calabogie

Wakefield

Petawawa

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$ 358

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 11/3. 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

Filter for what you want

Filter for what you want

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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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Air France flights from London to Ottawa

Our best Air France deals on London to Ottawa flight tickets

SWISS flights from London to Ottawa

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

What is the cheapest month to fly to Ottawa?

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

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

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$ 1,001. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,038 per ticket.

What is the cheapest London to Ottawa flight route?

Fly from London Gatwick 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 February 2026, prices for London to Ottawa flights are approximately 14% cheaper when compared to flights at the same time last year.

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

Air Transat, Air France, and Virgin Atlantic 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 11% 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 236 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?

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Friday 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 11% 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: 60% 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 Toronto (YYZ) offer the lowest average round-trip price of C$ 1,007.

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: 12h 03m.

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

Paris (CDG) has the shortest average layover time for this route: 2h 21m.

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.