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.

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 has the shortest connection time from London to Ottawa?

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

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.

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

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

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.

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 61% 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 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.

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

2 flights are operational daily from London to Ottawa as of December 2025. The most popular departure time for this route is 12:00p.m., with 100% of flights per day taking off in the afternoon.

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

The number of flights available between London and Ottawa is 18 per week as of December 2025. The most frequent departure day is Wed, with 33% of weekly flights leaving on this day.

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

Flights via Paris (CDG) offer the lowest average round-trip price of C$ 375.

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$ 366 Cheap Flights from London to Ottawa in 2025/26

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

2:30 p.m. - 12:42 a.m.

LHR

YOW

15h 12m1 stop

5:35 p.m. - 10:30 a.m.

YOW

LHR

11h 55m1 stop

C$ 879Multiple Airlines

Wed, 7 Jan - Wed, 14 Jan

9:00 a.m. - 2:21 p.m.

LHR

YOW

10h 21m1 stop

7:25 p.m. - 8:35 p.m.

YOW

LHR

20h 10m2 stops

C$ 882Air Canada

Thu, 8 Jan - Thu, 15 Jan

5:00 p.m. - 3:00 p.m.

LGW

YOW

27h 00m1 stop

5:15 p.m. - 9:25 a.m.

YOW

LGW

11h 10m1 stop

C$ 883Air France

Wed, 1 Apr - Thu, 10 Sep

9:00 a.m. - 9:42 a.m.

LHR

YOW

29h 42m2 stops

7:25 p.m. - 8:35 p.m.

YOW

LHR

20h 10m2 stops

C$ 886Air Canada

Thu, 8 Jan - Thu, 15 Jan

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

LGW

YOW

11h 48m1 stop

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

YOW

LGW

9h 55m1 stop

C$ 902Air Transat

Tue, 10 Feb - Tue, 24 Feb

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

LGW

YOW

11h 53m1 stop

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

YOW

LGW

9h 55m1 stop

C$ 903Air Transat

Thu, 19 Feb - Fri, 27 Feb

6:20 a.m. - 3:10 p.m.

LHR

YOW

13h 50m1 stop

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

YOW

LHR

20h 00m1 stop

C$ 903Air France

Fri, 23 Jan - Fri, 30 Jan

2:30 p.m. - 12:42 a.m.

LHR

YOW

15h 12m1 stop

5:35 p.m. - 12:05 p.m.

YOW

LHR

13h 30m2 stops

C$ 921KLM

Wed, 7 Jan - Fri, 16 Jan

8:05 p.m. - 3:10 p.m.

LCY

YOW

24h 05m2 stops

5:40 a.m. - 9:30 a.m.

YOW

LCY

22h 50m2 stops

C$ 1,021KLM

Thu, 12 Feb - Sun, 15 Feb

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

LCY

YOW

13h 43m2 stops

4:00 p.m. - 9:15 a.m.

YOW

LCY

12h 15m2 stops

C$ 1,562Lufthansa

Fri, 9 Jan - Sun, 18 Jan

Air Transat flights from London to Ottawa

Our best Air Transat deals on London to Ottawa flight tickets

Air Transat

10 Feb

LGW11:40 a.m.London Gatwick

11h 48m

1 stop

YOW6:28 p.m.Ottawa

24 Feb

YOW6:50 p.m.Ottawa

9h 55m

1 stop

LGW9:45 a.m.London Gatwick

C$ 902

Find similar

Air Transat

19 Feb

LGW11:40 a.m.London Gatwick

11h 53m

1 stop

YOW6:33 p.m.Ottawa

27 Feb

YOW6:50 p.m.Ottawa

9h 55m

1 stop

LGW9:45 a.m.London Gatwick

C$ 903

Find similar

Air Transat

12 Feb

LGW11:40 a.m.London Gatwick

25h 45m

1 stop

YOW8:25 a.m.Ottawa

15 Feb

YOW6:50 p.m.Ottawa

9h 55m

1 stop

LGW9:45 a.m.London Gatwick

C$ 905

Find similar

SWISS flights from London to Ottawa

Our best SWISS deals on London to Ottawa flight tickets

SWISS

9 Feb

LHR9:00 a.m.London Heathrow

15h 18m

2 stops

YOW7:18 p.m.Ottawa

16 Feb

YOW4:15 p.m.Ottawa

19h 05m

2 stops

LHR4:20 p.m.London Heathrow

C$ 954

Find similar

SWISS

23 Jan

LGW6:40 p.m.London Gatwick

29h 38m

2 stops

YOW7:18 p.m.Ottawa

30 Jan

YOW6:20 p.m.Ottawa

42h 30m

2 stops

LGW5:50 p.m.London Gatwick

C$ 1,021

Find similar

SWISS

9 Feb

LCY9:15 a.m.London City

15h 03m

2 stops

YOW7:18 p.m.Ottawa

16 Feb

YOW4:15 p.m.Ottawa

19h 50m

2 stops

LCY5:05 p.m.London City

C$ 1,130

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 7/1

2:30 p.m.-12:42 a.m.

1 stop15h 12m

Ottawa

Wed 14/1

5:35 p.m.-10:30 a.m.

1 stop11h 55m

C$ 879

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 8/1

9:00 a.m.-2:21 p.m.

1 stop10h 21m

Ottawa

Thu 15/1

7:25 p.m.-8:35 p.m.

2 stops20h 10m

C$ 882

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Wed 1/4

5:00 p.m.-3:00 p.m.

1 stop27h 00m

Ottawa

Thu 10/9

5:15 p.m.-9:25 a.m.

1 stop11h 10m

C$ 883

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Thu 8/1

9:00 a.m.-9:42 a.m.

2 stops29h 42m

Ottawa

Thu 15/1

7:25 p.m.-8:35 p.m.

2 stops20h 10m

C$ 886

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Tue 10/2

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

1 stop11h 48m

Ottawa

Tue 24/2

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

1 stop9h 55m

C$ 902

LondonOttawa

LGW - YOW

LGWYOW

London Gatwick

Thu 19/2

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

1 stop11h 53m

Ottawa

Fri 27/2

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

1 stop9h 55m

C$ 903

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Fri 23/1

6:20 a.m.-3:10 p.m.

1 stop13h 50m

Ottawa

Fri 30/1

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

1 stop20h 00m

C$ 903

LondonOttawa

LHR - YOW

LHRYOW

London Heathrow

Wed 7/1

2:30 p.m.-12:42 a.m.

1 stop15h 12m

Ottawa

Fri 16/1

5:35 p.m.-12:05 p.m.

2 stops13h 30m

C$ 921

LondonOttawa

LCY - YOW

LCYYOW

London City

Thu 12/2

8:05 p.m.-3:10 p.m.

2 stops24h 05m

Ottawa

Sun 15/2

5:40 a.m.-9:30 a.m.

2 stops22h 50m

C$ 1,021

LondonOttawa

LCY - YOW

LCYYOW

London City

Fri 9/1

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

2 stops13h 43m

Ottawa

Sun 18/1

4:00 p.m.-9:15 a.m.

2 stops12h 15m

C$ 1,562

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

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$ 883. If you aren’t able to travel to Ottawa during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of C$ 897.

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

Our data shows that Wednesday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 996. Flights from London to Ottawa on a Sunday will generally be more expensive and average around C$ 2,025. 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$ 1,074. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,115 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$ 693 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$ 976
Fastest flight time	7h 30m
Direct flights	Mon, Wed, 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$ 976

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

Direct flights go from London to Ottawa on Monday, Wednesday, 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 (27.02% of total bookings). The next most popular plane models are Boeing 777-300ER (14.64%), Boeing 787-9 Dreamliner (14.32%), and Boeing 777 (7.75%).
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$ 787	Free Cancellation	Rating 7.4 1,515 reviews	Search Air France flights
Air Canada	PriceFrom C$ 793	Free Cancellation	Rating 7.1 10,562 reviews	Search Air Canada flights
Lufthansa	PriceFrom C$ 845	Free Cancellation	Rating 6.8 7,658 reviews	Search Lufthansa flights

Air Canada Flights From London to Ottawa
Air Canada is one of the most popular airlines flying from London to Ottawa, operating 3 flights/week on average for this route. A good Air Canada flight deal for London to Ottawa starts from C$ 793 round-trip, up to an average price of C$ 1,007. Our users have rated Air Canada at 7.1/10.
Lufthansa Flights From London to Ottawa
C$ 845 is the best Lufthansa flight deal from London to Ottawa found on momondo over the last 72 hours. The average Lufthansa ticket price found was closer to C$ 994, however, with flight time and availability significantly affecting the price. Lufthansa (6.8/10 from 7,658 user reviews) flies into Ottawa from London 3 times in an average week so prices can vary.

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Tue 27/1

Tue 3/2

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada

Airports servicing Ontario

Sault Ste Marie Airport

Popular Cities in Canada

Flights to Torontofrom C$ 96

Flights to Vancouverfrom C$ 60

Flights to Montrealfrom C$ 59

Flights to Calgaryfrom C$ 75

Flights to Winnipegfrom C$ 128

Flights to Halifaxfrom C$ 57

Flights to Kelownafrom C$ 85

Flights to Saskatoonfrom C$ 202

Flights to Reginafrom C$ 171

Flights to St. John'sfrom C$ 212

Flights to Québec Cityfrom C$ 312

Flights to Monctonfrom C$ 284

Cheap flights from London to Ottawa from C$ 366

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 16/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to Ottawa

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Air Transat flights from London to Ottawa

Our best Air Transat deals on London to Ottawa flight tickets

SWISS flights from London to Ottawa

Our best SWISS deals on London to Ottawa flight tickets

momondo Fare Finder

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$ 1,074. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,115 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, Air France, and KLM 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$ 375.

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.

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

2 flights are operational daily from London to Ottawa as of December 2025. The most popular departure time for this route is 12:00p.m., with 100% of flights per day taking off in the afternoon.

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

The number of flights available between London and Ottawa is 18 per week as of December 2025. The most frequent departure day is Wed, with 33% of weekly flights leaving on this day.

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

Air Canada Flights From London to Ottawa

Lufthansa Flights From London to Ottawa

Travelling to a place near Ottawa?

Why use momondo?

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