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 is the cheapest airline that flies from London to Ottawa?

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

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

Flights via Paris (CDG) offer the lowest average round-trip price of C$ 380.

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 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 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 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 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 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 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.

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$ 512 Cheap Flights from London to Ottawa in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:25 p.m. - 4:23 p.m.

LHR

YOW

31h 58m1 stop

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

YOW

LHR

15h 40m2 stops

C$ 882Air Canada

Thu, 29 Jan - Wed, 4 Feb

8:55 a.m. - 3:10 p.m.

LHR

YOW

11h 15m1 stop

5:20 p.m. - 7:55 a.m.

YOW

LHR

9h 35m1 stop

C$ 885Virgin Atlantic

Fri, 23 Jan - Tue, 27 Jan

1:25 p.m. - 9:23 a.m.

LHR

YOW

24h 58m2 stops

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

YOW

LHR

6h 25mdirect

C$ 886Air Canada

Thu, 29 Jan - Wed, 4 Feb

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$ 893Air Transat

Thu, 22 Jan - Tue, 27 Jan

11:40 a.m. - 12:43 a.m.

LGW

YOW

18h 03m1 stop

7:40 p.m. - 7:55 a.m.

YOW

LGW

7h 15mdirect

C$ 894Air Transat

Tue, 3 Feb - Tue, 1 Sep

2:45 p.m. - 12:42 a.m.

LHR

YOW

14h 57m2 stops

5:20 p.m. - 7:55 a.m.

YOW

LHR

9h 35m1 stop

C$ 896Air France

Fri, 23 Jan - Tue, 27 Jan

11:40 a.m. - 12:39 a.m.

LGW

YOW

17h 59m1 stop

5:40 a.m. - 9:45 a.m.

YOW

LGW

23h 05m1 stop

C$ 907Multiple Airlines

Wed, 25 Feb - Wed, 4 Mar

11:55 a.m. - 12:39 a.m.

LGW

YOW

17h 44m2 stops

10:00 a.m. - 10:55 a.m.

YOW

LGW

19h 55m2 stops

C$ 922Multiple Airlines

Wed, 4 Feb - Wed, 11 Feb

9:40 a.m. - 6:38 p.m.

LCY

YOW

13h 58m2 stops

2:05 p.m. - 9:15 a.m.

YOW

LCY

14h 10m2 stops

C$ 966Lufthansa

Thu, 22 Jan - Tue, 27 Jan

9:50 a.m. - 11:08 p.m.

LCY

YOW

18h 18m2 stops

12:00 p.m. - 5:40 p.m.

YOW

LCY

24h 40m2 stops

C$ 1,300Lufthansa

Wed, 7 Jan - Wed, 14 Jan

Lufthansa flights from London to Ottawa

Our best Lufthansa deals on London to Ottawa flight tickets

Lufthansa

26 Dec

LHR11:10 a.m.London Heathrow

12h 28m

1 stop

YOW6:38 p.m.Ottawa

11 Jan

YOW4:00 p.m.Ottawa

10h 10m

1 stop

LHR7:10 a.m.London Heathrow

C$ 943

Find similar

Lufthansa

6 Feb

LHR1:00 p.m.London Heathrow

10h 38m

1 stop

YOW6:38 p.m.Ottawa

10 Feb

YOW4:00 p.m.Ottawa

10h 10m

1 stop

LHR7:10 a.m.London Heathrow

C$ 953

Find similar

Lufthansa

26 Dec

LHR12:00 p.m.London Heathrow

7h 30m

YOW2:30 p.m.Ottawa

8 Jan

YOW4:00 p.m.Ottawa

10h 10m

1 stop

LHR7:10 a.m.London Heathrow

C$ 954

Find similar

Air France flights from London to Ottawa

Our best Air France deals on London to Ottawa flight tickets

Air France

23 Jan

LHR2:45 p.m.London Heathrow

14h 57m

2 stops

YOW12:42 a.m.Ottawa

27 Jan

YOW5:20 p.m.Ottawa

9h 35m

1 stop

LHR7:55 a.m.London Heathrow

C$ 896

Find similar

Air France

25 Dec

LHR9:00 a.m.London Heathrow

11h 10m

1 stop

YOW3:10 p.m.Ottawa

11 Jan

YOW5:45 p.m.Ottawa

19h 35m

1 stop

LHR6:20 p.m.London Heathrow

C$ 926

Find similar

Air France

14 May

LGW5:15 p.m.London Gatwick

26h 50m

1 stop

YOW3:05 p.m.Ottawa

19 May

YOW5:15 p.m.Ottawa

11h 10m

1 stop

LGW9:25 a.m.London Gatwick

C$ 958

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 29/1

1:25 p.m.-4:23 p.m.

1 stop31h 58m

Ottawa

Wed 4/2

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

2 stops15h 40m

C$ 882

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 23/1

8:55 a.m.-3:10 p.m.

1 stop11h 15m

Ottawa

Tue 27/1

5:20 p.m.-7:55 a.m.

1 stop9h 35m

C$ 885

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 29/1

1:25 p.m.-9:23 a.m.

2 stops24h 58m

Ottawa

Wed 4/2

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

Nonstop6h 25m

C$ 886

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 22/1

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

1 stop11h 48m

Ottawa

Tue 27/1

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

1 stop9h 50m

C$ 893

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 3/2

11:40 a.m.-12:43 a.m.

1 stop18h 03m

Ottawa

Tue 1/9

7:40 p.m.-7:55 a.m.

Nonstop7h 15m

C$ 894

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 23/1

2:45 p.m.-12:42 a.m.

2 stops14h 57m

Ottawa

Tue 27/1

5:20 p.m.-7:55 a.m.

1 stop9h 35m

C$ 896

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Wed 25/2

11:40 a.m.-12:39 a.m.

1 stop17h 59m

Ottawa

Wed 4/3

5:40 a.m.-9:45 a.m.

1 stop23h 05m

C$ 907

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Wed 4/2

11:55 a.m.-12:39 a.m.

2 stops17h 44m

Ottawa

Wed 11/2

10:00 a.m.-10:55 a.m.

2 stops19h 55m

C$ 922

LondonOttawa

LCY - YOW

LCYYOW

London City

Thu 22/1

9:40 a.m.-6:38 p.m.

2 stops13h 58m

Ottawa

Tue 27/1

2:05 p.m.-9:15 a.m.

2 stops14h 10m

C$ 966

LondonOttawa

LCY - YOW

LCYYOW

London City

Wed 7/1

9:50 a.m.-11:08 p.m.

2 stops18h 18m

Ottawa

Wed 14/1

12:00 p.m.-5:40 p.m.

2 stops24h 40m

C$ 1,300

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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

Other information

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 January is, on average, the cheapest month to fly to Ottawa from London, with most prices found around C$ 872. 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$ 908.

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$ 944. Flights from London to Ottawa on a Sunday will generally be more expensive and average around C$ 2,051. 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$ 1,018. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,121 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$ 1,017 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$ 696 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 40% 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$ 924
Fastest flight time	7h 30m
Direct flights	Mon, Thu, Sat and Sun
Airports in Ottawa	1 airport

The best one-way flight to Ottawa from London in the past 72 hours is C$ 924. The best round-trip flight deal from London to Ottawa found on momondo in the last 72 hours is C$ 985.

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

Direct flights go from London to Ottawa on Monday, Thursday, Saturday and Sunday. 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?
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 787-9 Dreamliner (26.46% of total bookings). The next most popular plane models are Boeing 787-8 Dreamliner (23.67%), Boeing 777-300ER (13.54%), and Boeing 777 (7.22%).
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 15% 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$ 797	Free Cancellation	Rating 7.4 1,502 reviews	Search Air France flights
Air Canada	PriceFrom C$ 803	Free Cancellation	Rating 7.1 10,515 reviews	Search Air Canada flights
Lufthansa	PriceFrom C$ 856	Free Cancellation	Rating 6.8 7,619 reviews	Search Lufthansa flights

Gatineau

Pembroke

Brockville

Perth

Smiths Falls

Wakefield

Calabogie

Prescott

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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Find better results for your trip to Canada

Cheap flights from London to Ottawa from C$ 512

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 21/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Lufthansa flights from London to Ottawa

Our best Lufthansa deals on London to Ottawa flight tickets

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Our best Air France deals on London to Ottawa flight tickets

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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$ 1,018. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,121 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 40% 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 Air France 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$ 380.

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.