How often are flights from Ottawa to London delayed?

Historically, on average around 20% 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 138 minutes.

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

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with about 20% of their flights experiencing any sort of delay.

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. Sunday has historically seen more delays on average compared to the rest of the week.

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 83% of people opting to fly with this airline when travelling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

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

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

Prices for flights from Ottawa Airport to London are updated daily.

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

There is 1 operator available for flights from Ottawa Airport to London as of January 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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.

£201 Cheap Flights from Ottawa to London in 2026

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 £420 to £516. The lowest price recently found on this route was £391.

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Find the cheapest flights from Ottawa to London

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

10:00 - 09:45

YOW

LGW

18h 45m

1 stop

11:40 - 00:43

LGW

YOW

18h 03m

1 stop

£391Porter Airlines

Wed, 18 Feb - Wed, 25 Feb

10:00 - 09:45

YOW

LGW

18h 45m

1 stop

11:40 - 08:23

LGW

YOW

25h 43m

1 stop

£395Porter Airlines

Mon, 23 Feb - Mon, 2 Mar

15:05 - 09:45

YOW

LGW

13h 40m

1 stop

11:40 - 08:25

LGW

YOW

25h 45m

1 stop

£396Air Transat

Thu, 19 Feb - Thu, 26 Feb

05:40 - 21:20

YOW

STN

34h 40m

2 stops

12:10 - 00:39

STN

YOW

40h 29m

3 stops

£398Multiple Airlines

Mon, 2 Mar - Wed, 11 Mar

10:00 - 09:45

YOW

LGW

18h 45m

1 stop

11:40 - 08:25

LGW

YOW

25h 45m

1 stop

£398Air Transat

Wed, 18 Feb - Wed, 25 Feb

05:40 - 18:20

YOW

STN

31h 40m

2 stops

08:35 - 00:39

STN

YOW

44h 04m

3 stops

£399Multiple Airlines

Mon, 2 Mar - Wed, 11 Mar

12:00 - 06:35

YOW

LHR

13h 35m

1 stop

08:40 - 09:41

LHR

YOW

30h 01m

2 stops

£451Air Canada

Fri, 22 May - Fri, 29 May

17:30 - 21:00

YOW

LHR

22h 30m

1 stop

09:30 - 19:51

LHR

YOW

15h 21m

2 stops

£454Air Canada

Mon, 25 May - Sun, 7 Jun

10:50 - 08:40

YOW

LCY

16h 50m

2 stops

09:20 - 19:15

LCY

YOW

13h 55m

2 stops

£550SWISS

Wed, 4 Mar - Wed, 11 Mar

10:50 - 08:40

YOW

LCY

16h 50m

2 stops

09:20 - 17:41

LCY

YOW

13h 21m

2 stops

£550SWISS

Wed, 18 Feb - Wed, 25 Feb

Air Canada flights from Ottawa to London

Our best Air Canada deals on Ottawa to London flight tickets

Air Canada

25 May

YOW17:30Ottawa

22h 30m

1 stop

LHR21:00London Heathrow

7 Jun

LHR09:30London Heathrow

15h 21m

2 stops

YOW19:51Ottawa

£454

Air Canada

14 May

YOW17:30Ottawa

22h 30m

1 stop

LHR21:00London Heathrow

26 May

LHR12:40London Heathrow

10h 53m

1 stop

YOW18:33Ottawa

£455

Air Canada

22 May

YOW16:00Ottawa

12h 35m

1 stop

LHR09:35London Heathrow

5 Jun

LHR12:40London Heathrow

10h 53m

1 stop

YOW18:33Ottawa

£456

Lufthansa flights from Ottawa to London

Our best Lufthansa deals on Ottawa to London flight tickets

Lufthansa

14 May

YOW17:55Ottawa

31h 35m

1 stop

LHR06:30London Heathrow

30 May

LHR19:10London Heathrow

30h 41m

2 stops

YOW20:51Ottawa

£463

Lufthansa

28 May

YOW17:55Ottawa

31h 35m

1 stop

LHR06:30London Heathrow

1 Jun

LHR19:10London Heathrow

30h 41m

2 stops

YOW20:51Ottawa

£464

Lufthansa

2 Feb

YOW14:05Ottawa

13h 25m

1 stop

LHR08:30London Heathrow

5 Feb

LHR18:30London Heathrow

27h 48m

2 stops

YOW17:18Ottawa

£684

Fly from

Fly to

Route

Depart

Return

Price

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 18/2

10:00-09:45

1 stop18h 45m

London Gatwick

Wed 25/2

11:40-00:43

1 stop18h 03m

£391

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Mon 23/2

10:00-09:45

1 stop18h 45m

London Gatwick

Mon 2/3

11:40-08:23

1 stop25h 43m

£395

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Thu 19/2

15:05-09:45

1 stop13h 40m

London Gatwick

Thu 26/2

11:40-08:25

1 stop25h 45m

£396

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Mon 2/3

05:40-21:20

2 stops34h 40m

London Stansted

Wed 11/3

12:10-00:39

3 stops40h 29m

£398

OttawaLondon

YOW - LGW

YOWLGW

Ottawa

Wed 18/2

10:00-09:45

1 stop18h 45m

London Gatwick

Wed 25/2

11:40-08:25

1 stop25h 45m

£398

OttawaLondon

YOW - STN

YOWSTN

Ottawa

Mon 2/3

05:40-18:20

2 stops31h 40m

London Stansted

Wed 11/3

08:35-00:39

3 stops44h 04m

£399

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 22/5

12:00-06:35

1 stop13h 35m

London Heathrow

Fri 29/5

08:40-09:41

2 stops30h 01m

£451

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Mon 25/5

17:30-21:00

1 stop22h 30m

London Heathrow

Sun 7/6

09:30-19:51

2 stops15h 21m

£454

OttawaLondon

YOW - LCY

YOWLCY

Ottawa

Wed 4/3

10:50-08:40

2 stops16h 50m

London City

Wed 11/3

09:20-19:15

2 stops13h 55m

£550

OttawaLondon

YOW - LCY

YOWLCY

Ottawa

Wed 18/2

10:50-08:40

2 stops16h 50m

London City

Wed 25/2

09:20-17:41

2 stops13h 21m

£550

Flights are sorted by cheapest return 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

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

What is the cheapest month to fly to London?

The cheapest month to fly to London from Ottawa is in February. Flight prices, which tend to average around £475, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Ottawa averaging around £494.

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

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £530. 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 £975.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £559. Flights in the afternoon are often more expensive, with an average ticket price of £590.

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 £558 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Ottawa for as low as £526 on momondo.

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

There are 2 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 62% 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 January 2026, prices for Ottawa to London flights are approximately 20% 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 return 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

Fastest flight time	6h 25m
Direct flights	Every day
Airports in London	6 airports

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

Direct flights go from Ottawa to London every day.

There are 6 airports in London. From Ottawa there are direct flights to London Heathrow (LHR), London Gatwick (LGW).

Search flight deals

How far is Ottawa to London by plane?
The straight-line distance from Ottawa to London is 3329.4 mi. By plane, this route typically takes 6h 25m.
When did momondo last update prices for flights from Ottawa Airport to London?
Prices for flights from Ottawa Airport to London are updated daily.
How many operators does momondo search for flights from Ottawa Airport to London?
There is 1 operator available for flights from Ottawa Airport to London as of January 2026.
How old do you have to be to fly from Ottawa Airport to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 787-8 Dreamliner, making up 53.22% of the total bookings. Other popular models include Airbus A321neo with 12.88%, Airbus A330-300 with 11.19%, and De Havilland (Bombardier) DHC-8-400 Dash 8Q with 10.17%.
What is the most popular airline from Ottawa to London?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ottawa to London is Air Canada (100% of total bookings).

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 Canada	PriceFrom £469	Free Cancellation	Rating 7.1 10,666 reviews		Search Air Canada flights

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Chelmsford

Hayes

Dover

Folkestone

Worthing

Colchester

Bedford

Ramsgate

Chichester

Why use momondo?

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

It is quick and easy to find Ottawa to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. momondo enables you to select and highlight flights to London from Ottawa with this policy.

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

momondo helps you find the best flight between Ottawa and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Ottawa and alert you when they change.

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Start using Trips

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London Gatwick Airport

London Heathrow Airport

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Flights to Newquayfrom £31

Cheap flights from Ottawa to London from £201

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 30/3. 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

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Filter for what you want

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Find the cheapest flights from Ottawa to London

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Air Canada flights from Ottawa to London

Our best Air Canada deals on Ottawa to London flight tickets

Lufthansa flights from Ottawa to London

Our best Lufthansa 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

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?

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £530. 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 £975.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £559. Flights in the afternoon are often more expensive, with an average ticket price of £590.

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 2 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 62% 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 January 2026, prices for Ottawa to London flights are approximately 20% cheaper when compared to flights at the same time last year.

Which airlines fly to London?

How often are flights from Ottawa to London delayed?

Historically, on average around 20% 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 138 minutes.

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

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night 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. Sunday 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 have had the fewest delays on this route over the last 12 months, with about 20% of their flights experiencing any sort of delay.

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

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

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, organise 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.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London