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 76% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 10 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

As of January 2026, 40 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.

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

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

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 25m and 7h 50m, respectively.

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 January 2026, there are 10 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.

£169 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?

As of January 2026, 281 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 Wed, with 20% of weekly flights taking off on this day.

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Find the cheapest flights from Ontario to London

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

21:45 - 18:55

YUL

LHR

16h 10m

1 stop

16:30 - 20:15

LHR

YUL

32h 45m

1 stop

£382TAP AIR PORTUGAL

Wed, 18 Feb - Sun, 22 Feb

20:45 - 11:55

YYZ

LHR

10h 10m

1 stop

21:25 - 22:10

LHR

YYZ

29h 45m

1 stop

£388Icelandair

Thu, 2 Apr - Fri, 10 Apr

14:10 - 12:50

YYZ

LHR

17h 40m

1 stop

15:15 - 14:10

LHR

YYZ

27h 55m

2 stops

£390Multiple Airlines

Sun, 1 Feb - Wed, 4 Mar

18:10 - 06:30

YYZ

LHR

7h 20mdirect

18:40 - 16:05

LHR

YYZ

26h 25m

1 stop

£391Multiple Airlines

Fri, 13 Feb - Mon, 16 Feb

21:30 - 09:20

YUL

LHR

30h 50m

1 stop

09:00 - 12:15

LHR

YUL

32h 15m

1 stop

£406Lufthansa

Thu, 12 Feb - Thu, 19 Feb

20:55 - 06:30

YTZ

LHR

28h 35m

1 stop

12:40 - 07:15

LHR

YTZ

23h 35m

2 stops

£413Air Canada

Wed, 1 Apr - Sat, 11 Apr

10:25 - 06:40

YTZ

LHR

15h 15m

2 stops

09:00 - 21:35

LHR

YTZ

17h 35m

2 stops

£425Air Canada

Fri, 13 Feb - Tue, 17 Feb

20:10 - 12:50

YXU

LHR

35h 40m

1 stop

14:50 - 06:35

LHR

YXU

20h 45m

1 stop

£464WestJet

Mon, 9 Feb - Mon, 16 Feb

15:45 - 12:50

YQT

LHR

16h 05m

2 stops

14:50 - 15:11

LHR

YQT

29h 21m

2 stops

£538WestJet

Thu, 26 Feb - Thu, 5 Mar

18:15 - 06:35

YQT

LHR

31h 20m

1 stop

20:25 - 23:00

LHR

YQT

31h 35m

2 stops

£568Lufthansa

Sun, 3 May - Sun, 10 May

TAP AIR PORTUGAL flights from Region of Ontario to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Region of Ontario to London Heathrow Airport flight tickets

TAP AIR PORTUGAL

18 Feb

YUL21:45Montreal Pierre Elliott Trudeau Intl

16h 10m

1 stop

LHR18:55London Heathrow

22 Feb

LHR16:30London Heathrow

32h 45m

1 stop

YUL20:15Montreal Pierre Elliott Trudeau Intl

£382

TAP AIR PORTUGAL

11 May

YYZ22:55Toronto Pearson Intl

19h 00m

1 stop

LHR22:55London Heathrow

20 May

LHR06:00London Heathrow

13h 00m

1 stop

YYZ14:00Toronto Pearson Intl

£389

TAP AIR PORTUGAL

12 Apr

YUL22:45Montreal Pierre Elliott Trudeau Intl

18h 15m

1 stop

LHR22:00London Heathrow

23 Apr

LHR16:35London Heathrow

33h 35m

1 stop

YUL21:10Montreal Pierre Elliott Trudeau Intl

£390

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

15 Jan

YYZ23:00Toronto Pearson Intl

7h 20m

LHR11:20London Heathrow

21 Jan

LHR13:00London Heathrow

8h 00m

YYZ16:00Toronto Pearson Intl

£392

Air Canada

17 Jan

YYZ18:10Toronto Pearson Intl

7h 20m

LHR06:30London Heathrow

15 Feb

LHR09:00London Heathrow

10h 55m

1 stop

YYZ14:55Toronto Pearson Intl

£393

Air Canada

10 Feb

YYZ18:10Toronto Pearson Intl

7h 20m

LHR06:30London Heathrow

17 Feb

LHR09:00London Heathrow

12h 05m

1 stop

YYZ16:05Toronto Pearson Intl

£395

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

Wed 18/2

21:45-18:55

1 stop16h 10m

London Heathrow

Sun 22/2

16:30-20:15

1 stop32h 45m

£382

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 2/4

20:45-11:55

1 stop10h 10m

London Heathrow

Fri 10/4

21:25-22:10

1 stop29h 45m

£388

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 1/2

14:10-12:50

1 stop17h 40m

London Heathrow

Wed 4/3

15:15-14:10

2 stops27h 55m

£390

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 13/2

18:10-06:30

Nonstop7h 20m

London Heathrow

Mon 16/2

18:40-16:05

1 stop26h 25m

£391

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

21:30-09:20

1 stop30h 50m

London Heathrow

Thu 19/2

09:00-12:15

1 stop32h 15m

£406

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Wed 1/4

20:55-06:30

1 stop28h 35m

London Heathrow

Sat 11/4

12:40-07:15

2 stops23h 35m

£413

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Fri 13/2

10:25-06:40

2 stops15h 15m

London Heathrow

Tue 17/2

09:00-21:35

2 stops17h 35m

£425

LondonLondon

YXU - LHR

YXULHR

London

Mon 9/2

20:10-12:50

1 stop35h 40m

London Heathrow

Mon 16/2

14:50-06:35

1 stop20h 45m

£464

Thunder BayLondon

YQT - LHR

YQTLHR

Thunder Bay

Thu 26/2

15:45-12:50

2 stops16h 05m

London Heathrow

Thu 5/3

14:50-15:11

2 stops29h 21m

£538

Thunder BayLondon

YQT - LHR

YQTLHR

Thunder Bay

Sun 3/5

18:15-06:35

1 stop31h 20m

London Heathrow

Sun 10/5

20:25-23:00

2 stops31h 35m

£568

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 £415. The month of May is another great option to travel to London Heathrow Airport, with average flight prices from Region of Ontario averaging around £430.

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 £523. 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 £557.

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 afternoon. momondo users have found flights departing from Region of Ontario to London Heathrow Airport in the afternoon for as low as £536. 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 evening when prices are £545 on average. Flights to London Heathrow Airport from Region of Ontario in the evening 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 £497 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 £447 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?

You could potentially save up to 23% 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	£266
Fastest flight time	6h 25m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from Region of Ontario in the past 72 hours is £266. The best return flight deal from Region of Ontario to London Heathrow Airport found on momondo in the last 72 hours is £489.

The fastest flight from Region of Ontario to London Heathrow Airport takes 6h 25m

Direct flights go from Region of Ontario to London Heathrow Airport every day.

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 January 2026, there are 10 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 Boeing 777-300ER, representing 18.24% of all bookings. The subsequent popular models are Airbus A321neo at 14.98%, Airbus A330-200 at 13.43%, and Boeing 787-9 Dreamliner at 10.77%.

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
Icelandair	PriceFrom £359	Free Cancellation	Rating 7.1 596 reviews	Search Icelandair flights
Aer Lingus	PriceFrom £364	Free Cancellation	Rating 7.2 1,435 reviews	Search Aer Lingus flights
Air Canada	PriceFrom £379	Free Cancellation	Rating 7.1 10,619 reviews	Search Air Canada flights
KLM	PriceFrom £380	Free Cancellation	Rating 7.7 1,437 reviews	Search KLM flights
Virgin Atlantic	PriceFrom £388	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom £395	Free Cancellation	Rating 6.7 7,671 reviews	Search British Airways flights
Lufthansa	PriceFrom £400	Free Cancellation	Rating 6.8 7,711 reviews	Search Lufthansa flights
American Airlines	PriceFrom £416	Free Cancellation	Rating 7.2 11,118 reviews	Search American Airlines flights
Finnair	PriceFrom £416	Free Cancellation	Rating 7.6 1,348 reviews	Search Finnair flights
United Airlines	PriceFrom £470	Free Cancellation	Rating 7.4 9,156 reviews	Search United Airlines flights

Eastbourne

Luton

Milton Keynes

Gatwick

Maidstone

Slough

Northampton

Stratford-upon-Avon

Swindon

Southend-on-Sea

Canterbury

Ipswich

Ilford

Poole

Guildford

Chelmsford

Hayes

Swanage

Dover

Worthing

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 £169

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 3/2. 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

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Find the cheapest flights from Ontario to London

Cheap return flights

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TAP AIR PORTUGAL flights from Region of Ontario to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Region of Ontario to London Heathrow Airport flight tickets

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

momondo Fare Finder

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

See travel insights to London from

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?

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?

You could potentially save up to 23% on your flight if you consider stops on a Region of Ontario to London Heathrow Airport flight.

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

WestJet, TAP AIR PORTUGAL, 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 January 2026, 40 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 January 2026, 281 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 Wed, with 20% 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 25m and 7h 50m, 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