What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

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

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

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

According to our data, Aegean Airlines have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

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

WestJet is the most popular carrier operating from Ottawa to London Heathrow

How often are flights from Ottawa to London delayed?

Historically, on average around 14% 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 155 minutes.

What airlines fly to London Heathrow Airport?

Air Canada, Lufthansa and British Airways are the top three most popular airlines that fly to London Heathrow Airport from Ottawa according to our data. Air Canada is the first choice among our users, with 58% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 5 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

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

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

As of October 2025, there are 3 operators available to choose from for flights from Ottawa Airport to London Heathrow Airport.

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

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$252 Cheap Flights from Ottawa to London Heathrow Airport in 2025/26

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

Prices are currently low for flights on this route. Typical prices usually range from $674 to $819. The lowest price recently found on this route was $656.

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:55 pm - 9:20 amYOW-LHR

6h 25mnonstop

9:00 am - 10:18 pmLHR-YOW

18h 18m2 stops

$656Multiple Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 3

9:55 pm - 9:20 amYOW-LHR

6h 25mnonstop

6:00 am - 7:18 pmLHR-YOW

18h 18m2 stops

$662Multiple Airlines

Find Deal

Sun, Nov 16 - Sun, Nov 23

9:55 pm - 9:20 amYOW-LHR

6h 25mnonstop

6:00 am - 7:18 pmLHR-YOW

18h 18m2 stops

$663Multiple Airlines

Find Deal

Sun, Nov 16 - Sun, Nov 23

10:50 am - 7:10 amYOW-LHR

15h 20m1 stop

12:00 pm - 2:30 pmLHR-YOW

7h 30mnonstop

$664Air Canada

Find Deal

Fri, Dec 5 - Wed, Dec 10

9:55 pm - 9:20 amYOW-LHR

6h 25mnonstop

1:25 pm - 9:42 amLHR-YOW

25h 17m1 stop

$665Air Canada

Find Deal

Fri, Dec 5 - Wed, Dec 10

9:55 pm - 9:20 amYOW-LHR

6h 25mnonstop

12:00 pm - 2:30 pmLHR-YOW

7h 30mnonstop

$667Lufthansa

Find Deal

Wed, Nov 26 - Wed, Dec 3

2:05 pm - 8:30 amYOW-LHR

13h 25m1 stop

12:00 pm - 2:30 pmLHR-YOW

7h 30mnonstop

$680Lufthansa

Find Deal

Mon, Mar 2 - Fri, Mar 6

10:20 am - 8:05 amYOW-LHR

16h 45m2 stops

7:50 am - 9:18 pmLHR-YOW

18h 28m2 stops

$692Aer Lingus

Find Deal

Thu, Dec 4 - Thu, Jan 8

2:05 pm - 8:05 amYOW-LHR

14h 00m2 stops

9:50 am - 7:34 pmLHR-YOW

14h 44m2 stops

$726Aer Lingus

Find Deal

Mon, Mar 16 - Sun, Mar 29

5:20 pm - 10:30 amYOW-LHR

12h 10m1 stop

2:45 pm - 3:10 pmLHR-YOW

29h 25m1 stop

$728Air France

Find Deal

Sun, Dec 7 - Wed, Dec 10

Aer Lingus flights from Ottawa to London Heathrow Airport

Our best Aer Lingus deals on Ottawa to London Heathrow Airport flight tickets

Aer Lingus

Dec 4

YOW10:20 amOttawa

16h 45m

2 stops

LHR8:05 amLondon Heathrow

Jan 8

LHR7:50 amLondon Heathrow

18h 28m

2 stops

YOW9:18 pmOttawa

$692

Find similar

Aer Lingus

Mar 16

YOW2:05 pmOttawa

14h 00m

2 stops

LHR8:05 amLondon Heathrow

Mar 29

LHR9:50 amLondon Heathrow

14h 44m

2 stops

YOW7:34 pmOttawa

$726

Find similar

Aer Lingus

Nov 15

YOW10:20 amOttawa

16h 45m

2 stops

LHR8:05 amLondon Heathrow

Nov 24

LHR7:45 pmLondon Heathrow

28h 33m

2 stops

YOW7:18 pmOttawa

$731

Find similar

United Airlines flights from Ottawa to London Heathrow Airport

Our best United Airlines deals on Ottawa to London Heathrow Airport flight tickets

United Airlines

Nov 25

YOW11:10 amOttawa

13h 45m

1 stop

LHR5:55 amLondon Heathrow

Dec 2

LHR6:50 amLondon Heathrow

14h 42m

2 stops

YOW4:32 pmOttawa

$707

Find similar

United Airlines

Dec 3

YOW3:10 pmOttawa

14h 40m

2 stops

LHR10:50 amLondon Heathrow

Dec 9

LHR6:50 amLondon Heathrow

14h 42m

2 stops

YOW4:32 pmOttawa

$709

Find similar

United Airlines

Nov 25

YOW12:05 pmOttawa

13h 35m

2 stops

LHR6:40 amLondon Heathrow

Dec 2

LHR6:50 amLondon Heathrow

14h 42m

2 stops

YOW4:32 pmOttawa

$713

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 11/26

9:55 pm-9:20 am

Nonstop6h 25m

London Heathrow

Wed 12/3

9:00 am-10:18 pm

2 stops18h 18m

$656

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sun 11/16

9:55 pm-9:20 am

Nonstop6h 25m

London Heathrow

Sun 11/23

6:00 am-7:18 pm

2 stops18h 18m

$662

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sun 11/16

9:55 pm-9:20 am

Nonstop6h 25m

London Heathrow

Sun 11/23

6:00 am-7:18 pm

2 stops18h 18m

$663

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 12/5

10:50 am-7:10 am

1 stop15h 20m

London Heathrow

Wed 12/10

12:00 pm-2:30 pm

Nonstop7h 30m

$664

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Fri 12/5

9:55 pm-9:20 am

Nonstop6h 25m

London Heathrow

Wed 12/10

1:25 pm-9:42 am

1 stop25h 17m

$665

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Wed 11/26

9:55 pm-9:20 am

Nonstop6h 25m

London Heathrow

Wed 12/3

12:00 pm-2:30 pm

Nonstop7h 30m

$667

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Mon 3/2

2:05 pm-8:30 am

1 stop13h 25m

London Heathrow

Fri 3/6

12:00 pm-2:30 pm

Nonstop7h 30m

$680

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Thu 12/4

10:20 am-8:05 am

2 stops16h 45m

London Heathrow

Thu 1/8

7:50 am-9:18 pm

2 stops18h 28m

$692

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Mon 3/16

2:05 pm-8:05 am

2 stops14h 00m

London Heathrow

Sun 3/29

9:50 am-7:34 pm

2 stops14h 44m

$726

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sun 12/7

5:20 pm-10:30 am

1 stop12h 10m

London Heathrow

Wed 12/10

2:45 pm-3:10 pm

1 stop29h 25m

$728

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 Heathrow Airport

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 Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Ottawa, with most prices found around $693. If you’re not able to fly to London Heathrow Airport in February, then January is your next best option. Flight prices from Ottawa to London Heathrow Airport during January average around $710.

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $814. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $954.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Ottawa to London Heathrow Airport in the evening for as low as $839. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $891.

What is the cheapest Ottawa to London Heathrow flight route?

Fly from Ottawa to London Heathrow for the best Ottawa - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $776 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Ottawa for as low as $712 on momondo.

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

There are 3 cabin classes available to choose from on Ottawa to London Heathrow 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 Heathrow Airport flights?

You could potentially save up to 41% on your flight if you consider stops on a Ottawa to London Heathrow Airport flight.

How have Ottawa to London Heathrow Airport flight prices changed over time?

As of October 2025, prices for Ottawa to London Heathrow Airport flights are approximately 43% more expensive when compared to flights at the same time last year.

When to book flights from Ottawa to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ottawa to London Heathrow Airport (YOW to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to London Heathrow Airport

Best Price Found	$721
Fastest flight time	6h 25m
Direct flights	Mon, Tue, Thu and Sat

The best flight deal from Ottawa to London Heathrow Airport found on momondo in the last 72 hours is $721

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

Direct flights go from Ottawa to London Heathrow Airport on Monday, Tuesday, Thursday and Saturday. There are no airlines offering direct flights.

Search flight deals

How far is Ottawa to London Heathrow by plane?
Ottawa and London Heathrow are 3317.2 mi apart from one another. By plane, this route typically takes 6h 25m.
When did momondo last update prices for flights from Ottawa Airport to London Heathrow Airport?
Prices for flights from Ottawa Airport to London Heathrow Airport are updated daily.
How many operators does momondo search for flights from Ottawa Airport to London Heathrow Airport?
As of October 2025, there are 3 operators available to choose from for flights from Ottawa Airport to London Heathrow Airport.
How old do you have to be to fly from Ottawa Airport to London Heathrow 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 Ottawa Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. 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 Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ottawa to London Heathrow Airport is Boeing 787-9 Dreamliner (72.52% of total bookings). The next most popular plane models are Boeing 787-8 Dreamliner (14.70%), Airbus A330-300 (8.63%), and Airbus A321neo (0.96%).
What is the most popular airline from Ottawa to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from Ottawa to London Heathrow Airport is Air Canada, representing 75% of all bookings. The subsequent popular airlines are Lufthansa at 20% and Air France at 5%.

Best airlines flying from Ottawa to London Heathrow Airport

Compare and see reviews for airlines that fly from Ottawa to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
Air France	PriceFrom $454	Free Cancellation	Rating 7.4 1,482 reviews	Search Air France flights
Lufthansa	PriceFrom $664	Free Cancellation	Rating 6.8 7,541 reviews	Search Lufthansa flights
Air Canada	PriceFrom $671	Free Cancellation	Rating 7.1 10,377 reviews	Search Air Canada flights

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Stratford-upon-Avon

Brentwood

Salisbury

Chelmsford

Folkestone

Romford

Ilford

Swindon

Cobham

Wembley

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Ottawa.

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

Yes. All flights to London from Ottawa on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to London from Ottawa. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.

An easier way to manage your London Heathrow Airport 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.

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Cheap flights from Ottawa to London from $252

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 1/30. 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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Find the cheapest flights from Ottawa to London

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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Aer Lingus flights from Ottawa to London Heathrow Airport

Our best Aer Lingus deals on Ottawa to London Heathrow Airport flight tickets

United Airlines flights from Ottawa to London Heathrow Airport

Our best United Airlines deals on Ottawa to London Heathrow Airport flight tickets

momondo Fare Finder

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

See travel insights to London from

How to get the cheapest flight ticket from Ottawa to London Heathrow Airport

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 typical price of a round-trip flight between Ottawa and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $814. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $954.

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

What is the cheapest Ottawa to London Heathrow flight route?

Fly from Ottawa to London Heathrow for the best Ottawa - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

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

There are 3 cabin classes available to choose from on Ottawa to London Heathrow 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 Heathrow Airport flights?

You could potentially save up to 41% on your flight if you consider stops on a Ottawa to London Heathrow Airport flight.

How have Ottawa to London Heathrow Airport flight prices changed over time?

As of October 2025, prices for Ottawa to London Heathrow Airport flights are approximately 43% more expensive when compared to flights at the same time last year.

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

WestJet is the most popular carrier operating from Ottawa to London Heathrow

What airlines fly to London Heathrow Airport?

How often are flights from Ottawa to London delayed?

Historically, on average around 14% 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 155 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 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 which experiences the fewest number of delays on this flight route. Saturday 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, Aegean Airlines have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

When to book flights from Ottawa to London Heathrow Airport

Cheap Ottawa to London Heathrow Airport (YOW to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to London Heathrow Airport

Best Price Found

Fastest flight time

Direct flights

How far is Ottawa to London Heathrow by plane?

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

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

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

What documentation or ID do you need to fly to London Heathrow Airport?

What is the most popular plane model from Ottawa to London Heathrow Airport?

What is the most popular airline from Ottawa to London Heathrow Airport?

Best airlines flying from Ottawa to London Heathrow Airport

Compare and see reviews for airlines that fly from Ottawa to London Heathrow Airport with momondo

Traveling 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 Heathrow Airport 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.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo