What is the cheapest airline that flies from United Kingdom to London?

WestJet is the most popular carrier operating from United Kingdom to London

Which airlines fly to London, Ontario?

Air Canada, Air Transat and Lufthansa are the top three most popular airlines that fly to London, Ontario from United Kingdom according to our data. Air Canada is the first choice among our users, with 57% of people opting to fly with this airline when travelling to London, Ontario. Keep in mind that there are 19 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London, Ontario?

Flight times vary depending on what airport in United Kingdom you fly out of and what airport in London, Ontario you fly into. For example, flying from Edinburgh to Toronto Pearson Intl Airport takes 7h on average. On the other hand, flying from Manchester to Toronto Pearson Intl Airport takes 7h 35m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

When did momondo last update prices for flights from United Kingdom to London Airport?

Prices for flights from United Kingdom to London Airport are refreshed on a daily basis.

How many operators does momondo search for flights from United Kingdom to London Airport?

The number of operators available for flights from United Kingdom to London Airport is 1 as of January 2026.

How old do you have to be to fly from United Kingdom to London Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United Kingdom to London Airport.

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

The required travel and health documents for your London Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£276 Cheap Flights from the United Kingdom to London in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from the United Kingdom to London

Round-trip

One-way

Last minute

Recent return flight deals from the United Kingdom to London

Enter your travel dates to find the best prices.

06:00 - 17:05

LHR

YXU

15h 05m

2 stops

09:40 - 08:30

YXU

LHR

18h 50m

1 stop

£479Air Canada

Tue, 17 Mar - Tue, 24 Mar

06:00 - 17:05

LHR

YXU

15h 05m

2 stops

09:40 - 07:10

YXU

LHR

17h 30m

2 stops

£482Air Canada

Tue, 17 Mar - Tue, 24 Mar

09:00 - 21:21

LHR

YXU

16h 21m

2 stops

17:40 - 15:50

YXU

LHR

18h 10m

2 stops

£499Multiple Airlines

Tue, 17 Mar - Tue, 24 Mar

18:40 - 21:21

LGW

YXU

30h 41m

2 stops

17:40 - 17:50

YXU

LGW

20h 10m

2 stops

£514SWISS

Mon, 16 Mar - Mon, 23 Mar

18:40 - 21:21

LGW

YXU

30h 41m

2 stops

17:40 - 17:50

YXU

LGW

20h 10m

2 stops

£517SWISS

Mon, 16 Mar - Mon, 23 Mar

18:40 - 08:46

LGW

YXU

42h 06m

2 stops

17:40 - 17:50

YXU

LGW

20h 10m

2 stops

£520Multiple Airlines

Mon, 16 Mar - Mon, 23 Mar

09:50 - 21:21

LCY

YXU

15h 31m

2 stops

17:40 - 17:35

YXU

LCY

19h 55m

2 stops

£545Lufthansa

Tue, 10 Mar - Tue, 17 Mar

09:50 - 21:21

LCY

YXU

15h 31m

2 stops

17:40 - 17:35

YXU

LCY

19h 55m

2 stops

£546Lufthansa

Tue, 17 Mar - Tue, 24 Mar

06:00 - 06:35

MAN

YXU

29h 35m

2 stops

20:10 - 16:05

YXU

MAN

38h 55m

2 stops

£1,266WestJet

Wed, 25 Feb - Sun, 1 Mar

06:00 - 06:35

MAN

YXU

29h 35m

2 stops

20:10 - 16:05

YXU

MAN

38h 55m

2 stops

£1,292WestJet

Wed, 25 Feb - Sun, 1 Mar

SWISS flights from United Kingdom to London, Ontario

Our best SWISS deals on United Kingdom to London, Ontario flight tickets

SWISS

15 Mar

LHR09:00London Heathrow

16h 21m

2 stops

YXU21:21London

22 Mar

YXU17:40London

15h 20m

2 stops

LHR13:00London Heathrow

£510

SWISS

16 Mar

LGW18:40London Gatwick

30h 41m

2 stops

YXU21:21London

23 Mar

YXU17:40London

20h 10m

2 stops

LGW17:50London Gatwick

£514

SWISS

16 Mar

LGW18:40London Gatwick

30h 41m

2 stops

YXU21:21London

23 Mar

YXU17:40London

20h 10m

2 stops

LGW17:50London Gatwick

£517

Air Canada flights from United Kingdom to London, Ontario

Our best Air Canada deals on United Kingdom to London, Ontario flight tickets

Air Canada

17 Mar

LHR06:00London Heathrow

15h 05m

2 stops

YXU17:05London

24 Mar

YXU09:40London

18h 50m

1 stop

LHR08:30London Heathrow

£479

Air Canada

17 Mar

LHR06:00London Heathrow

15h 05m

2 stops

YXU17:05London

24 Mar

YXU09:40London

17h 30m

2 stops

LHR07:10London Heathrow

£482

Air Canada

15 Mar

LHR09:00London Heathrow

16h 21m

2 stops

YXU21:21London

22 Mar

YXU09:40London

21h 40m

1 stop

LHR11:20London Heathrow

£484

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Tue 17/3

06:00-17:05

2 stops15h 05m

London

Tue 24/3

09:40-08:30

1 stop18h 50m

£479

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Tue 17/3

06:00-17:05

2 stops15h 05m

London

Tue 24/3

09:40-07:10

2 stops17h 30m

£482

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Tue 17/3

09:00-21:21

2 stops16h 21m

London

Tue 24/3

17:40-15:50

2 stops18h 10m

£499

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Mon 16/3

18:40-21:21

2 stops30h 41m

London

Mon 23/3

17:40-17:50

2 stops20h 10m

£514

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Mon 16/3

18:40-21:21

2 stops30h 41m

London

Mon 23/3

17:40-17:50

2 stops20h 10m

£517

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Mon 16/3

18:40-08:46

2 stops42h 06m

London

Mon 23/3

17:40-17:50

2 stops20h 10m

£520

LondonLondon

LCY - YXU

LCYYXU

London City

Tue 10/3

09:50-21:21

2 stops15h 31m

London

Tue 17/3

17:40-17:35

2 stops19h 55m

£545

LondonLondon

LCY - YXU

LCYYXU

London City

Tue 17/3

09:50-21:21

2 stops15h 31m

London

Tue 24/3

17:40-17:35

2 stops19h 55m

£546

ManchesterLondon

MAN - YXU

MANYXU

Manchester

Wed 25/2

06:00-06:35

2 stops29h 35m

London

Sun 1/3

20:10-16:05

2 stops38h 55m

£1,266

ManchesterLondon

MAN - YXU

MANYXU

Manchester

Wed 25/2

06:00-06:35

2 stops29h 35m

London

Sun 1/3

20:10-16:05

2 stops38h 55m

£1,292

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 United Kingdom to London, Ontario

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

Can stopping save me money on United Kingdom to London, Ontario flights?

You could potentially save up to 44% on your flight if you consider stops on a United Kingdom to London, Ontario flight.

Cheap United Kingdom to London, Ontario flight deals and tips

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

Fastest flight time	12h 28m
Direct flights	None

The fastest flight from United Kingdom to London, Ontario takes 12h 28m

There are no direct flights from United Kingdom to London, Ontario. There are no popular flight routes from United Kingdom to London, Ontario.

Search flight deals

When did momondo last update prices for flights from United Kingdom to London Airport?
Prices for flights from United Kingdom to London Airport are refreshed on a daily basis.
How many operators does momondo search for flights from United Kingdom to London Airport?
The number of operators available for flights from United Kingdom to London Airport is 1 as of January 2026.
How old do you have to be to fly from United Kingdom to London Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United Kingdom to London Airport.
What documentation or ID do you need to fly to London Airport?
The required travel and health documents for your London Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from United Kingdom to London, Ontario

Compare and see reviews for airlines that fly from United Kingdom to London, Ontario with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom £479	Free Cancellation	Rating 7.1 10,668 reviews		Search Air Canada flights

Grand Bend

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United Kingdom to London . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to London from United Kingdom which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from United Kingdom to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United Kingdom to London.

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

Of course. momondo tracks the price of United Kingdom to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.