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

If you’re flying from a popular airport in Region of Ontario, such as Ottawa or Toronto, and flying into London Heathrow Airport, then you can expect flight times to average 6h 35m and 8h 12m, respectively.

Which airlines fly to London Heathrow Airport?

Air Canada, British Airways and Virgin Atlantic 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 68% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 9 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, WestJet, and Air Canada 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?

As of August 2025, 55 flights take off from Region of Ontario and land in London Heathrow Airport each day. The most common flight departure time for this route is 18:00, with 100% of daily flights 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 were last updated today.

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

As of August 2025, there are 9 operators available to choose from for flights from Ontario to London Heathrow Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 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.

£157 Cheap Flights from Region of Ontario to London Heathrow Airport in 2025

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

As of August 2025, 385 flights take off from Region of Ontario and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

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Find the cheapest flights from Ontario to London

Round-trip

One-way

Last minute

Direct

Cheap return flights

13:05 - 06:30YUL-LHR

12h 25m1 stop

12:40 - 06:32LHR-YUL

22h 52m1 stop

£302Air Canada

Find Deal

Thu, 18 Sep - Thu, 25 Sep

19:10 - 07:10YUL-LHR

7h 00mdirect

06:00 - 15:10LHR-YUL

14h 10m1 stop

£304

Find Deal

Wed, 19 Nov - Sun, 23 Nov

13:05 - 06:30YUL-LHR

12h 25m1 stop

09:30 - 11:40LHR-YUL

7h 10mdirect

£305Air Canada

Find Deal

Thu, 18 Sep - Thu, 25 Sep

20:30 - 08:35YYZ-LHR

7h 05mdirect

09:00 - 15:35LHR-YYZ

10h 35m1 stop

£315Lufthansa

Find Deal

Thu, 16 Oct - Mon, 27 Oct

19:10 - 07:10YUL-LHR

7h 00mdirect

13:25 - 16:10LHR-YUL

7h 45mdirect

£318Lufthansa

Find Deal

Wed, 19 Nov - Sun, 23 Nov

22:30 - 10:40YYZ-LHR

7h 10mdirect

17:50 - 20:40LHR-YYZ

7h 50mdirect

£351Virgin Atlantic

Find Deal

Mon, 22 Sep - Wed, 1 Oct

21:45 - 21:35YUL-LHR

18h 50m1 stop

08:15 - 20:15LHR-YUL

17h 00m1 stop

£356TAP AIR PORTUGAL

Find Deal

Mon, 10 Nov - Fri, 21 Nov

21:45 - 22:40YUL-LHR

19h 55m1 stop

08:15 - 20:15LHR-YUL

17h 00m1 stop

£359TAP AIR PORTUGAL

Find Deal

Wed, 3 Dec - Wed, 10 Dec

12:10 - 09:15YYZ-LHR

16h 05m1 stop

15:20 - 20:55LHR-YYZ

10h 35m1 stop

£372Virgin Atlantic

Find Deal

Mon, 22 Sep - Wed, 1 Oct

20:40 - 08:30YUL-LHR

6h 50mdirect

08:15 - 22:50LHR-YUL

19h 35m2 stops

£373American Airlines

Find Deal

Tue, 2 Dec - Thu, 4 Dec

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

18 Sept

YUL13:05Montreal Pierre Elliott Trudeau Intl

12h 25m

1 stop

LHR06:30London Heathrow

25 Sept

LHR12:40London Heathrow

22h 52m

1 stop

YUL06:32Montreal Pierre Elliott Trudeau Intl

£302

Find similar

Air Canada

18 Sept

YUL13:05Montreal Pierre Elliott Trudeau Intl

12h 25m

1 stop

LHR06:30London Heathrow

25 Sept

LHR09:30London Heathrow

7h 10m

YUL11:40Montreal Pierre Elliott Trudeau Intl

£305

Find similar

Air Canada

19 Nov

YUL11:30Montreal Pierre Elliott Trudeau Intl

14h 00m

2 stops

LHR06:30London Heathrow

23 Nov

LHR09:00London Heathrow

11h 10m

1 stop

YUL15:10Montreal Pierre Elliott Trudeau Intl

£309

Find similar

Lufthansa flights from Region of Ontario to London Heathrow Airport

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

Lufthansa

16 Oct

YYZ20:30Toronto Pearson Intl

7h 05m

LHR08:35London Heathrow

27 Oct

LHR09:00London Heathrow

10h 35m

1 stop

YYZ15:35Toronto Pearson Intl

£315

Find similar

Lufthansa

19 Nov

YUL19:10Montreal Pierre Elliott Trudeau Intl

7h 00m

LHR07:10London Heathrow

23 Nov

LHR13:25London Heathrow

7h 45m

YUL16:10Montreal Pierre Elliott Trudeau Intl

£318

Find similar

Lufthansa

6 Oct

YUL21:55Montreal Pierre Elliott Trudeau Intl

6h 40m

LHR09:35London Heathrow

24 Oct

LHR06:55London Heathrow

19h 05m

1 stop

YUL21:00Montreal Pierre Elliott Trudeau Intl

£397

Find similar

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

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 18/9

13:05-06:30

1 stop12h 25m

London Heathrow

Thu 25/9

12:40-06:32

1 stop22h 52m

£302

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

19:10-07:10

Nonstop7h 00m

London Heathrow

Sun 23/11

06:00-15:10

1 stop14h 10m

£304

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 18/9

13:05-06:30

1 stop12h 25m

London Heathrow

Thu 25/9

09:30-11:40

Nonstop7h 10m

£305

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 16/10

20:30-08:35

Nonstop7h 05m

London Heathrow

Mon 27/10

09:00-15:35

1 stop10h 35m

£315

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

19:10-07:10

Nonstop7h 00m

London Heathrow

Sun 23/11

13:25-16:10

Nonstop7h 45m

£318

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 22/9

22:30-10:40

Nonstop7h 10m

London Heathrow

Wed 1/10

17:50-20:40

Nonstop7h 50m

£351

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

21:45-21:35

1 stop18h 50m

London Heathrow

Fri 21/11

08:15-20:15

1 stop17h 00m

£356

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 3/12

21:45-22:40

1 stop19h 55m

London Heathrow

Wed 10/12

08:15-20:15

1 stop17h 00m

£359

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 22/9

12:10-09:15

1 stop16h 05m

London Heathrow

Wed 1/10

15:20-20:55

1 stop10h 35m

£372

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 2/12

20:40-08:30

Nonstop6h 50m

London Heathrow

Thu 4/12

08:15-22:50

2 stops19h 35m

£373

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 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?

In general, February is the cheapest month to fly from Region of Ontario to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £414. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Region of Ontario averaging around £426.

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

On average, the least expensive day to fly to London Heathrow Airport from Region of Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £515. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £560.

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 at midday. momondo users have found flights departing from Region of Ontario to London Heathrow Airport at midday for as low as £502. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £530 on average. Flights to London Heathrow Airport from Region of Ontario in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £492 when searching weeks before you fly. 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 £446 on momondo.

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

There are 3 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?

No. A direct flight is the cheapest option for a flight between Region of Ontario 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	£157
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 £157. The best return flight deal from Region of Ontario to London Heathrow Airport found on momondo in the last 72 hours is £302.

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. Airlines offering direct flights are: Lufthansa, Finnair and Air Canada.

Search flight deals

When did momondo last update prices for flights from Ontario to London Heathrow Airport?
Prices for flights from Ontario to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Ontario to London Heathrow Airport?
As of August 2025, there are 9 operators available to choose from for flights from Ontario to London Heathrow Airport.
How old do you have to be to fly from Ontario to London Heathrow Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 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 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 A330-200, representing 24.34% of all bookings. The subsequent popular models are Airbus A350-1000 at 15.67%, Boeing 777-300ER at 14.95%, and Boeing 777 at 14.75%.

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
Aer Lingus	PriceFrom £364	Free Cancellation	Rating 7.1 1,208 reviews	Search Aer Lingus flights
Icelandair	PriceFrom £366	Free Cancellation	Rating 7.0 526 reviews	Search Icelandair flights
Air Canada	PriceFrom £373	Free Cancellation	Rating 7.1 9,930 reviews	Search Air Canada flights
Virgin Atlantic	PriceFrom £393	Free Cancellation	Rating 7.4 657 reviews	Search Virgin Atlantic flights
Lufthansa	PriceFrom £398	Free Cancellation	Rating 6.8 7,318 reviews	Search Lufthansa flights
British Airways	PriceFrom £402	Free Cancellation	Rating 6.6 7,261 reviews	Search British Airways flights
KLM	PriceFrom £404	Free Cancellation	Rating 7.8 1,381 reviews	Search KLM flights
Finnair	PriceFrom £415	Free Cancellation	Rating 7.6 1,321 reviews	Search Finnair flights
American Airlines	PriceFrom £416	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Eastbourne

Milton Keynes

Luton

Slough

Northampton

Maidstone

Southend-on-Sea

Swindon

Canterbury

Gatwick

Stratford-upon-Avon

Ipswich

Ilford

Guildford

Colchester

Dartford

Swanage

Hounslow

Worthing

Dover

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to London. momondo saves you time and could save you money on your trip.

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?

Yes momondo offers price alerts on flights to London from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Heathrow Airport 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.

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Cheap flights from Ontario to London from £157

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 26/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Ontario to London

Cheap return flights

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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

Lufthansa flights from Region of Ontario to London Heathrow Airport

Our best Lufthansa 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

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 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?

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?

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

There are 3 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?

No. A direct flight is the cheapest option for a flight between Region of Ontario to London Heathrow Airport.

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

TAP AIR PORTUGAL, WestJet, and Air Canada are the most popular carriers operating 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?

As of August 2025, 55 flights take off from Region of Ontario and land in London Heathrow Airport each day. The most common flight departure time for this route is 18:00, with 100% of daily flights taking off in the evening.

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

As of August 2025, 385 flights take off from Region of Ontario and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

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

If you’re flying from a popular airport in Region of Ontario, such as Ottawa or Toronto, and flying into London Heathrow Airport, then you can expect flight times to average 6h 35m and 8h 12m, respectively.

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

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

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

How old do you have to be to fly from Ontario 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 Region of 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?

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

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

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

I’m not ready to book a flight from Ontario 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, 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 London

Popular Cities in the United Kingdom

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