How long does it take to fly to London Heathrow Airport?

On average, it takes 6h 35m to fly from Region of Ontario to London Heathrow Airport if you fly out of Ottawa (the most popular airport in Region of Ontario) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Toronto and into London Heathrow Airport, then the flight time is around 7h 47m.

Which airlines fly to London Heathrow Airport?

Air Canada, British Airways and Lufthansa are the top three most popular airlines that fly to London Heathrow Airport from Region of Ontario 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 London Heathrow Airport. Keep in mind that there are 17 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

TAP AIR PORTUGAL, Air Canada, and Lufthansa are the most popular carriers operating from Ontario to London Heathrow

How many flights depart from Region of Ontario to London Heathrow Airport on average per day?

48 flights are operational daily from Region of Ontario to London Heathrow Airport as of April 2026. The most popular departure time for this route is 6:00p.m., with 100% of flights per day taking off in the evening.

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

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

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

The number of operators available for flights from Ontario to London Heathrow Airport is 17 as of April 2026.

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

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 Ontario to London Heathrow Airport.

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

The travel and health documents required for your trip to London Heathrow 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 London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 386 Cheap Flights from Region of Ontario to London Heathrow Airport in 2026

Q: How many flights depart from Region of Ontario to London Heathrow Airport on average per week?

The number of flights available between Region of Ontario and London Heathrow Airport is 339 per week as of April 2026. The most frequent departure day is Sat, with 19% of weekly flights leaving on this day.

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Find the cheapest flights from Ontario to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:15 p.m. - 8:20 p.m.

YYZ

LHR

21h 05m

2 stops

7:40 a.m. - 1:20 p.m.

LHR

YYZ

10h 40m

1 stop

C$ 769Multiple Airlines

Tue, 19 May - Thu, 28 May

10:55 p.m. - 8:20 p.m.

YYZ

LHR

16h 25m

1 stop

4:50 p.m. - 1:20 p.m.

LHR

YYZ

25h 30m

1 stop

C$ 773Multiple Airlines

Mon, 1 Jun - Mon, 8 Jun

9:35 p.m. - 1:30 p.m.

YYZ

LHR

10h 55m

1 stop

7:40 a.m. - 2:55 p.m.

LHR

YYZ

12h 15m

1 stop

C$ 774Multiple Airlines

Mon, 11 May - Tue, 19 May

4:15 p.m. - 12:40 p.m.

YYZ

LHR

15h 25m

2 stops

7:40 a.m. - 1:20 p.m.

LHR

YYZ

10h 40m

1 stop

C$ 776Multiple Airlines

Tue, 26 May - Thu, 4 Jun

11:10 p.m. - 8:20 p.m.

YYZ

LHR

16h 10m

1 stop

9:25 p.m. - 10:05 p.m.

LHR

YYZ

29h 40m

1 stop

C$ 781Icelandair

Wed, 13 May - Tue, 19 May

6:55 p.m. - 8:35 a.m.

YTZ

LHR

8h 40m

1 stop

12:40 p.m. - 9:32 p.m.

LHR

YTZ

37h 52m

2 stops

C$ 839Air Canada

Sat, 30 May - Sat, 6 Jun

10:00 p.m. - 9:40 a.m.

YUL

LHR

6h 40mdirect

6:05 p.m. - 8:15 p.m.

LHR

YUL

7h 10mdirect

C$ 839British Airways

Mon, 28 Sep - Sun, 4 Oct

8:55 a.m. - 8:35 a.m.

YUL

LHR

18h 40m

1 stop

8:40 a.m. - 3:00 p.m.

LHR

YUL

11h 20m

1 stop

C$ 840Air Canada

Sat, 2 May - Fri, 8 May

8:40 p.m. - 12:50 p.m.

YUL

LHR

11h 10m

1 stop

9:00 a.m. - 6:50 p.m.

LHR

YUL

14h 50m

1 stop

C$ 851Lufthansa

Mon, 4 May - Tue, 12 May

9:00 p.m. - 8:35 a.m.

YOW

LHR

6h 35mdirect

9:30 a.m. - 12:25 p.m.

LHR

YOW

7h 55mdirect

C$ 888Lufthansa

Sat, 30 May - Mon, 8 Jun

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Air Canada flights from Region of Ontario to London Heathrow Airport

Our best Air Canada deals on Region of Ontario to London Heathrow Airport flight tickets

Air Canada

2 May

YYZ4:30 p.m.Toronto Pearson Intl

12h 30m

1 stop

LHR10:00 a.m.London Heathrow

8 May

LHR6:00 a.m.London Heathrow

11h 50m

1 stop

YYZ12:50 p.m.Toronto Pearson Intl

C$ 837

Air Canada

30 May

YTZ6:55 p.m.Toronto Island

8h 40m

1 stop

LHR8:35 a.m.London Heathrow

6 Jun

LHR12:40 p.m.London Heathrow

37h 52m

2 stops

YTZ9:32 p.m.Toronto Island

C$ 839

Air Canada

3 May

YTZ6:30 p.m.Toronto Island

10h 30m

1 stop

LHR10:00 a.m.London Heathrow

11 May

LHR9:30 a.m.London Heathrow

10h 32m

1 stop

YTZ3:02 p.m.Toronto Island

C$ 840

Virgin Atlantic flights from Region of Ontario to London Heathrow Airport

Our best Virgin Atlantic deals on Region of Ontario to London Heathrow Airport flight tickets

Virgin Atlantic

3 May

YYZ10:55 p.m.Toronto Pearson Intl

7h 15m

LHR11:10 a.m.London Heathrow

11 May

LHR10:45 a.m.London Heathrow

17h 14m

1 stop

YYZ10:59 p.m.Toronto Pearson Intl

C$ 809

Virgin Atlantic

3 May

YYZ10:55 p.m.Toronto Pearson Intl

7h 15m

LHR11:10 a.m.London Heathrow

11 May

LHR6:30 a.m.London Heathrow

18h 25m

1 stop

YYZ7:55 p.m.Toronto Pearson Intl

C$ 821

Virgin Atlantic

3 May

YYZ10:55 p.m.Toronto Pearson Intl

7h 15m

LHR11:10 a.m.London Heathrow

11 May

LHR5:45 p.m.London Heathrow

7h 50m

YYZ8:35 p.m.Toronto Pearson Intl

C$ 830

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 19/5

6:15 p.m.-8:20 p.m.

2 stops21h 05m

London Heathrow

Thu 28/5

7:40 a.m.-1:20 p.m.

1 stop10h 40m

C$ 769

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 1/6

10:55 p.m.-8:20 p.m.

1 stop16h 25m

London Heathrow

Mon 8/6

4:50 p.m.-1:20 p.m.

1 stop25h 30m

C$ 773

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 11/5

9:35 p.m.-1:30 p.m.

1 stop10h 55m

London Heathrow

Tue 19/5

7:40 a.m.-2:55 p.m.

1 stop12h 15m

C$ 774

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 26/5

4:15 p.m.-12:40 p.m.

2 stops15h 25m

London Heathrow

Thu 4/6

7:40 a.m.-1:20 p.m.

1 stop10h 40m

C$ 776

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Wed 13/5

11:10 p.m.-8:20 p.m.

1 stop16h 10m

London Heathrow

Tue 19/5

9:25 p.m.-10:05 p.m.

1 stop29h 40m

C$ 781

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Sat 30/5

6:55 p.m.-8:35 a.m.

1 stop8h 40m

London Heathrow

Sat 6/6

12:40 p.m.-9:32 p.m.

2 stops37h 52m

C$ 839

Quickest round-trip

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 28/9

10:00 p.m.-9:40 a.m.

Nonstop6h 40m

London Heathrow

Sun 4/10

6:05 p.m.-8:15 p.m.

Nonstop7h 10m

C$ 839

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

8:55 a.m.-8:35 a.m.

1 stop18h 40m

London Heathrow

Fri 8/5

8:40 a.m.-3:00 p.m.

1 stop11h 20m

C$ 840

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

8:40 p.m.-12:50 p.m.

1 stop11h 10m

London Heathrow

Tue 12/5

9:00 a.m.-6:50 p.m.

1 stop14h 50m

C$ 851

OttawaLondon

YOW - LHR

YOWLHR

Ottawa

Sat 30/5

9:00 p.m.-8:35 a.m.

Nonstop6h 35m

London Heathrow

Mon 8/6

9:30 a.m.-12:25 p.m.

Nonstop7h 55m

C$ 888

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 Region of Ontario 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

Other information

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

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from Region of Ontario, with most prices found around C$ 791. If you aren’t able to travel to London Heathrow Airport during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 811.

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

According to our data, Sunday is the cheapest day to fly to London Heathrow Airport from Region of Ontario. The lowest ticket price found for a Sunday departure recently was C$ 1,263. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to London Heathrow Airport for around C$ 1,395.

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

Our data shows that the cheapest Region of Ontario to London Heathrow Airport flights are usually those with departure times in the evening. Our users have found flights to London Heathrow Airport in the evening for as low as C$ 1,320. In the afternoon is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,334 per ticket.

What is the cheapest Ontario to London Heathrow flight route?

Fly from Toronto Pearson Intl to London Heathrow for the best Ontario - 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 Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around C$ 948 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 Region of Ontario for as low as C$ 910 on momondo.

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

There are 4 cabin classes available to choose from on Ontario 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 Region of Ontario to London Heathrow Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Region of Ontario to London Heathrow Airport flight.

Cheap Region of Ontario to London Heathrow Airport flight deals and tips

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

Best price found	C$ 573
Fastest flight time	6h 35m
Direct flights	Tue, Thu, Fri and Sun

The best one-way flight to London Heathrow Airport from Region of Ontario in the past 72 hours is C$ 573. The best round-trip flight deal from Region of Ontario to London Heathrow Airport found on momondo in the last 72 hours is C$ 966.

The fastest flight from Region of Ontario to London Heathrow Airport takes 6h 35m

Direct flights go from Region of Ontario to London Heathrow Airport on Tuesday, Thursday, Friday and Sunday. There are no airlines offering direct flights.

Search flight deals

Frequently asked questions about flying from Ontario to London Heathrow Airport

When did momondo last update prices for flights from Ontario to London Heathrow Airport?
Prices for flights from Ontario to London Heathrow Airport are updated daily.
How many operators does momondo search for flights from Ontario to London Heathrow Airport?
The number of operators available for flights from Ontario to London Heathrow Airport is 17 as of April 2026.
How old do you have to be to fly from Ontario to London Heathrow Airport?
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 Ontario to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow 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 London Heathrow 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 Region of Ontario to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from Region of Ontario to London Heathrow Airport is Airbus A350-1000, representing 21.65% of all bookings. The subsequent popular models are Airbus A321neo at 14.45%, Boeing 777-300ER at 11.78%, and Boeing 787-10 Dreamliner at 10.39%.

Best airlines flying from Region of Ontario to London Heathrow Airport

Compare and see reviews for airlines that fly from Region of Ontario to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 216	Free Cancellation	Rating 7.2 3,321 reviews	Search WestJet flights
TAP AIR PORTUGAL	PriceFrom C$ 594	Free Cancellation	Rating 7.1 2,210 reviews	Search TAP AIR PORTUGAL flights
Porter Airlines	PriceFrom C$ 596	Free Cancellation	Rating 8.0 435 reviews	Search Porter Airlines flights
American Airlines	PriceFrom C$ 651	Free Cancellation	Rating 7.1 11,617 reviews	Search American Airlines flights
Icelandair	PriceFrom C$ 652	Free Cancellation	Rating 7.0 636 reviews	Search Icelandair flights
Air Transat	PriceFrom C$ 691	Free Cancellation	Rating 7.7 536 reviews	Search Air Transat flights
Air Canada	PriceFrom C$ 704	Free Cancellation	Rating 7.1 10,939 reviews	Search Air Canada flights
British Airways	PriceFrom C$ 719	Free Cancellation	Rating 6.7 7,892 reviews	Search British Airways flights
KLM	PriceFrom C$ 728	Free Cancellation	Rating 7.8 1,502 reviews	Search KLM flights
Virgin Atlantic	PriceFrom C$ 735	Free Cancellation	Rating 7.5 687 reviews	Search Virgin Atlantic flights

Hounslow

Poole

Wembley

Ilford

Slough

Swindon

Gatwick

Wokingham

Salisbury

Stratford-upon-Avon

Crawley

Feltham

Hayes

Waterlooville

Chelmsford

Basingstoke

Milton Keynes

Dover

Worthing

Ipswich

Why use momondo?

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

It is quick and easy to find Ontario 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 Ontario to London with flexible booking policies on momondo?

Flights from Ontario to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Ontario to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Ontario 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.

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Cheap flights from Ontario to London from C$ 386

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to London departing on 10/9. 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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Air Canada flights from Region of Ontario to London Heathrow Airport

Our best Air Canada deals on Region of Ontario to London Heathrow Airport flight tickets

Virgin Atlantic flights from Region of Ontario to London Heathrow Airport

Our best Virgin Atlantic deals on Region of Ontario to London Heathrow Airport flight tickets

momondo Fare Finder

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

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How to get the cheapest flight ticket from Region of Ontario to 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?

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

What is the cheapest Ontario to London Heathrow flight route?

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

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

Can stopping save me money on Region of Ontario to London Heathrow Airport flights?

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

Which airlines fly to London Heathrow Airport?

How many flights depart from Region of Ontario to London Heathrow Airport on average per day?

How many flights depart from Region of Ontario to London Heathrow Airport on average per week?

How long does it take to fly to London Heathrow Airport?

Cheap Region of Ontario to London Heathrow Airport flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from Ontario to London Heathrow Airport

Best airlines flying from Region of Ontario to London Heathrow Airport

Compare and see reviews for airlines that fly from Region of Ontario to London Heathrow Airport with momondo

Travelling to a place near London?

Why use momondo?

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

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