Which airlines fly to London?

Air Canada, British Airways and Air Transat are the top three most popular airlines that fly to London from Region of Ontario according to our data. Air Canada is the first choice among our users, with 70% of people opting to fly with this airline when travelling to London. Keep in mind that there are 12 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

As of January 2026, there are 257 flights per week flying from Region of Ontario to London. The most common day of the week flights depart is Tue, with 19% of flights taking off on this day.

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

As of January 2026, there are 36 flights per day flying from Region of Ontario to London. The most common time of day flights depart is 18:00, with 100% of flights taking off in the evening.

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

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

How long does it take to fly to London?

Flight times from Region of Ontario to London vary, but if you’re flying out of Ottawa and flying into London Heathrow Airport (one of the most popular routes), then the duration is 6h 25m on average. Another popular route from Region of Ontario to London is flying from Toronto to London Heathrow Airport, which will take roughly 7h 50m. Keep in mind that layovers or delays could extend your travel time.

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

Prices for flights from Ontario to London were last updated today.

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

As of January 2026, there are 12 operators available to choose from for flights from Ontario to London.

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

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.

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.

£185 Cheap Flights from Ontario to London in 2026

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Find the cheapest flights from Ontario to London

Round-trip

One-way

Last minute

Direct

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

mer., 18 févr. - dim., 22 févr.

21:45 - 09:50

YUL

LGW

31h 05m

1 stop

16:35 - 20:15

LGW

YUL

32h 40m

1 stop

£384TAP AIR PORTUGAL

mer., 18 févr. - mar., 24 févr.

06:45 - 09:45

YUL

LGW

22h 00m

1 stop

11:40 - 21:00

LGW

YUL

14h 20m

1 stop

£386Air Transat

sam., 14 févr. - ven., 27 févr.

23:20 - 11:55

YYZ

LHR

31h 35m

1 stop

13:05 - 19:10

LHR

YYZ

11h 05m

1 stop

£388Icelandair

sam., 11 avr. - mar., 21 avr.

19:40 - 10:55

YYZ

LGW

10h 15m

1 stop

11:55 - 18:15

LGW

YYZ

11h 20m

1 stop

£388Icelandair

lun., 16 févr. - lun., 23 févr.

17:25 - 09:45

YUL

LGW

11h 20m

1 stop

11:40 - 20:55

LGW

YUL

14h 15m

1 stop

£389Air Transat

lun., 2 févr. - lun., 9 févr.

19:35 - 09:45

YYZ

LTN

9h 10m

1 stop

20:00 - 11:15

LTN

YYZ

19h 15m

1 stop

£389Multiple Airlines

mar., 3 mars - jeu., 12 mars

22:00 - 19:25

YYZ

STN

16h 25m

1 stop

06:30 - 13:20

STN

YYZ

11h 50m

1 stop

£389Multiple Airlines

lun., 13 avr. - dim., 26 avr.

23:00 - 11:20

YYZ

LHR

7h 20mdirect

18:00 - 21:10

LHR

YYZ

8h 10mdirect

£392Air Canada

jeu., 5 févr. - sam., 28 févr.

12:30 - 10:05

YTZ

LHR

16h 35m

2 stops

13:25 - 07:55

LHR

YTZ

23h 30m

1 stop

£398Air Canada

jeu., 5 févr. - sam., 28 févr.

Air Canada flights from Region of Ontario to London

Our best Air Canada deals on Region of Ontario to London 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

TAP AIR PORTUGAL flights from Region of Ontario to London

Our best TAP AIR PORTUGAL deals on Region of Ontario to London 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

18 Feb

YUL21:45Montreal Pierre Elliott Trudeau Intl

31h 05m

1 stop

LGW09:50London Gatwick

24 Feb

LGW16:35London Gatwick

32h 40m

1 stop

YUL20:15Montreal Pierre Elliott Trudeau Intl

£384

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

Fly from

Fly to

Route

Depart

Return

Price

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mer. 18/2

21:45-18:55

1 stop16h 10m

London Heathrow

dim. 22/2

16:30-20:15

1 stop32h 45m

£382

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

mer. 18/2

21:45-09:50

1 stop31h 05m

London Gatwick

mar. 24/2

16:35-20:15

1 stop32h 40m

£384

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

sam. 14/2

06:45-09:45

1 stop22h 00m

London Gatwick

ven. 27/2

11:40-21:00

1 stop14h 20m

£386

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

sam. 11/4

23:20-11:55

1 stop31h 35m

London Heathrow

mar. 21/4

13:05-19:10

1 stop11h 05m

£388

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

lun. 16/2

19:40-10:55

1 stop10h 15m

London Gatwick

lun. 23/2

11:55-18:15

1 stop11h 20m

£388

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

lun. 2/2

17:25-09:45

1 stop11h 20m

London Gatwick

lun. 9/2

11:40-20:55

1 stop14h 15m

£389

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

mar. 3/3

19:35-09:45

1 stop9h 10m

London Luton

jeu. 12/3

20:00-11:15

1 stop19h 15m

£389

TorontoLondon

YYZ - STN

YYZSTN

Toronto Pearson Intl

lun. 13/4

22:00-19:25

1 stop16h 25m

London Stansted

dim. 26/4

06:30-13:20

1 stop11h 50m

£389

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

jeu. 5/2

23:00-11:20

Nonstop7h 20m

London Heathrow

sam. 28/2

18:00-21:10

Nonstop8h 10m

£392

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

jeu. 5/2

12:30-10:05

2 stops16h 35m

London Heathrow

sam. 28/2

13:25-07:55

1 stop23h 30m

£398

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

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?

The cheapest month to fly to London from Region of Ontario is in February. Flight prices, which tend to average around £382, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Region of Ontario averaging around £403.

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

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £508. 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 for around £550.

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 £528. Flights in the afternoon are often more expensive, with an average ticket price of £536.

What is the cheapest Ontario to London flight route?

Fly from Toronto Pearson Intl to London Gatwick for the best Ontario - 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 Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to London 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 from Region of Ontario for as low as £447 on momondo.

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

There are 3 cabin classes available to choose from on Ontario 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 Region of Ontario to London flights?

You could potentially save up to 46% on your flight if you consider stops on a Region of Ontario to London flight.

Cheap Region of Ontario to London flight deals and tips

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

Best price found	£266
Fastest flight time	6h 25m
Direct flights	Every day
Airports in London	6 airports

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

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

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

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

Search flight deals

When did momondo last update prices for flights from Ontario to London?
Prices for flights from Ontario to London were last updated today.
How many operators does momondo search for flights from Ontario to London?
As of January 2026, there are 12 operators available to choose from for flights from Ontario to London.
How old do you have to be to fly from Ontario to London?
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.
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 Region of Ontario to London?
momondo data reveals that the most frequently booked plane model on the route from Region of Ontario to London is Airbus A321neo, representing 18.42% of all bookings. The subsequent popular models are Airbus A330-200 at 16.67%, Boeing 777-300ER at 13.17%, and Boeing 777 at 10.55%.

Best airlines flying from Region of Ontario to London

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

Airline	Rating	Free Cancellation	Price
Air Transat	PriceFrom £339	Free Cancellation	Rating 7.7 495 reviews	Search Air Transat flights
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
Porter Airlines	PriceFrom £370	Free Cancellation	Rating 8.0 407 reviews	Search Porter Airlines flights
Air Canada	PriceFrom £379	Free Cancellation	Rating 7.1 10,620 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 7,672 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 11,122 reviews	Search American Airlines flights

Eastbourne

Luton

Milton Keynes

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Chelmsford

Hayes

Dover

Worthing

Hounslow

Bedford

Ramsgate

Colchester

Folkestone

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?

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Ontario.

I’m not ready to book a flight from Ontario 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 Ontario and alert you when they change.

An easier way to manage your London trip

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

London City Airport

London Gatwick Airport

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London Stansted Airport

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Flights to Manchesterfrom £33

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Flights to Glasgowfrom £30

Flights to Bristolfrom £31

Flights to Newcastle upon Tynefrom £30

Flights to Liverpoolfrom £30

Flights to Aberdeenfrom £36

Flights to Leedsfrom £34

Flights to Invernessfrom £35

Flights to Newquayfrom £33

Cheap flights from Ontario to London from £185

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 25/3. 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

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Ontario to London

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Air Canada flights from Region of Ontario to London

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

TAP AIR PORTUGAL flights from Region of Ontario to London

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

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

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How to get the cheapest flight ticket from Region of Ontario to 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 Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £508. 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 for around £550.

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 £528. Flights in the afternoon are often more expensive, with an average ticket price of £536.

What is the cheapest Ontario to London flight route?

Fly from Toronto Pearson Intl to London Gatwick for the best Ontario - London flight prices

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

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

There are 3 cabin classes available to choose from on Ontario 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 Region of Ontario to London flights?

You could potentially save up to 46% on your flight if you consider stops on a Region of Ontario to London flight.

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

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

Which airlines fly to London?

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

As of January 2026, there are 36 flights per day flying from Region of Ontario to London. The most common time of day flights depart is 18:00, with 100% of flights taking off in the evening.

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

As of January 2026, there are 257 flights per week flying from Region of Ontario to London. The most common day of the week flights depart is Tue, with 19% of flights taking off on this day.

How long does it take to fly to London?

Cheap Region of Ontario to London flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in London

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

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

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

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

What is the most popular plane model from Region of Ontario to London?

Best airlines flying from Region of Ontario to London

Compare and see reviews for airlines that fly from Region of Ontario to London 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 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