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Cheap flights from London, Ontario to London from C$ 548

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London, 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.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from London, Ontario to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:25 p.m. - 10:50 a.m.YXU  London-LHR London Heathrow
14h 25m2 stops Toronto Pearson Intl Washington, D.C. Dulles Intl
United Airlines Logo
4:20 p.m. - 8:37 a.m.LHR  London Heathrow-YXU London
21h 17m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl
C$ 1,089United Airlines
Sat, 28 Nov - Sun, 6 Dec
United Airlines Logo
5:40 a.m. - 6:45 a.m.YXU  London-LHR London Heathrow
20h 05m2 stops Toronto Pearson Intl Chicago O'Hare Intl
United Airlines Logo
4:40 p.m. - 9:20 a.m.LHR  London Heathrow-YXU London
21h 40m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl
C$ 1,090United Airlines
Wed, 9 Sep - Wed, 16 Sep
United Airlines Logo
3:30 p.m. - 10:25 a.m.YXU  London-LHR London Heathrow
13h 55m2 stops Toronto Pearson Intl Newark
United Airlines Logo
12:00 p.m. - 9:40 p.m.LHR  London Heathrow-YXU London
14h 40m2 stops Newark Toronto Pearson Intl
C$ 1,096United Airlines
Mon, 5 Oct - Mon, 19 Oct
Multiple Airlines Logo
6:20 p.m. - 8:55 p.m.YXU  London-LHR London Heathrow
21h 35m2 stops Toronto Pearson Intl Amsterdam Schiphol
Multiple Airlines Logo
6:30 a.m. - 9:40 p.m.LHR  London Heathrow-YXU London
20h 10m3 stops Amsterdam Schiphol Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 1,097Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct
Lufthansa Logo
10:05 a.m. - 6:55 a.m.YXU  London-LHR London Heathrow
15h 50m2 stops Toronto Pearson Intl Washington, D.C. Dulles Intl
Lufthansa Logo
7:45 a.m. - 5:45 p.m.LHR  London Heathrow-YXU London
15h 00m2 stops Newark Toronto Pearson Intl
C$ 1,110Lufthansa
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
10:05 a.m. - 1:45 p.m.YXU  London-LHR London Heathrow
22h 40m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle
Multiple Airlines Logo
6:15 a.m. - 5:45 p.m.LHR  London Heathrow-YXU London
16h 30m2 stops Paris Charles de Gaulle Toronto Pearson Intl
C$ 1,132Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
10:05 a.m. - 8:55 p.m.YXU  London-LHR London Heathrow
29h 50m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Amsterdam Schiphol
Multiple Airlines Logo
6:30 a.m. - 9:40 p.m.LHR  London Heathrow-YXU London
20h 10m3 stops Amsterdam Schiphol Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 1,149Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
3:30 p.m. - 1:50 p.m.YXU  London-LHR London Heathrow
17h 20m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Amsterdam Schiphol
Multiple Airlines Logo
6:30 a.m. - 9:40 p.m.LHR  London Heathrow-YXU London
20h 10m3 stops Amsterdam Schiphol Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 1,150Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
10:05 a.m. - 8:55 p.m.YXU  London-LHR London Heathrow
29h 50m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Amsterdam Schiphol
Multiple Airlines Logo
6:30 a.m. - 9:40 p.m.LHR  London Heathrow-YXU London
20h 10m3 stops Amsterdam Schiphol Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 1,151Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
3:30 p.m. - 1:45 p.m.YXU  London-LHR London Heathrow
17h 15m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle
Multiple Airlines Logo
6:15 a.m. - 5:45 p.m.LHR  London Heathrow-YXU London
16h 30m2 stops Paris Charles de Gaulle Toronto Pearson Intl
C$ 1,238Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct

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Air Canada flights from London, Ontario to London Heathrow Airport

Our best Air Canada deals on London, Ontario to London Heathrow Airport flight tickets
Air Canada
30 Nov
YXU3:25 p.m.London
14h 55m
1 stop
LHR11:20 a.m.London Heathrow
7 Dec
LHR6:00 a.m.London Heathrow
20h 47m
2 stops
YXU9:47 p.m.London
C$ 1,250
Air Canada
30 Nov
YXU5:30 a.m.London
24h 50m
1 stop
LHR11:20 a.m.London Heathrow
9 Dec
LHR6:00 a.m.London Heathrow
20h 47m
2 stops
YXU9:47 p.m.London
C$ 1,255
Air Canada
1 Dec
YXU9:15 a.m.London
18h 15m
1 stop
LHR8:30 a.m.London Heathrow
9 Dec
LHR3:00 p.m.London Heathrow
11h 47m
1 stop
YXU9:47 p.m.London
C$ 1,274

United Airlines flights from London, Ontario to London Heathrow Airport

Our best United Airlines deals on London, Ontario to London Heathrow Airport flight tickets
United Airlines
28 Nov
YXU3:25 p.m.London
14h 25m
2 stops
LHR10:50 a.m.London Heathrow
6 Dec
LHR4:20 p.m.London Heathrow
21h 17m
2 stops
YXU8:37 a.m.London
C$ 1,089
United Airlines
9 Sep
YXU5:40 a.m.London
20h 05m
2 stops
LHR6:45 a.m.London Heathrow
16 Sep
LHR4:40 p.m.London Heathrow
21h 40m
2 stops
YXU9:20 a.m.London
C$ 1,090
United Airlines
5 Oct
YXU3:30 p.m.London
13h 55m
2 stops
LHR10:25 a.m.London Heathrow
19 Oct
LHR12:00 p.m.London Heathrow
14h 40m
2 stops
YXU9:40 p.m.London
C$ 1,096

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 14 August 2026.
Use the filters below to find and compare flights from London, Ontario to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Sat 28/11

3:25 p.m.-10:50 a.m.

2 stops14h 25m

London Heathrow

Sun 6/12

4:20 p.m.-8:37 a.m.

2 stops21h 17m

C$ 1,089

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Wed 9/9

5:40 a.m.-6:45 a.m.

2 stops20h 05m

London Heathrow

Wed 16/9

4:40 p.m.-9:20 a.m.

2 stops21h 40m

C$ 1,090
Quickest round-trip

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Mon 5/10

3:30 p.m.-10:25 a.m.

2 stops13h 55m

London Heathrow

Mon 19/10

12:00 p.m.-9:40 p.m.

2 stops14h 40m

C$ 1,096

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Fri 25/9

6:20 p.m.-8:55 p.m.

2 stops21h 35m

London Heathrow

Fri 2/10

6:30 a.m.-9:40 p.m.

3 stops20h 10m

C$ 1,097

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Fri 25/9

10:05 a.m.-6:55 a.m.

2 stops15h 50m

London Heathrow

Fri 2/10

7:45 a.m.-5:45 p.m.

2 stops15h 00m

C$ 1,110

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Fri 25/9

10:05 a.m.-1:45 p.m.

3 stops22h 40m

London Heathrow

Fri 2/10

6:15 a.m.-5:45 p.m.

2 stops16h 30m

C$ 1,132

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Fri 25/9

10:05 a.m.-8:55 p.m.

3 stops29h 50m

London Heathrow

Fri 2/10

6:30 a.m.-9:40 p.m.

3 stops20h 10m

C$ 1,149

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Fri 25/9

3:30 p.m.-1:50 p.m.

3 stops17h 20m

London Heathrow

Fri 2/10

6:30 a.m.-9:40 p.m.

3 stops20h 10m

C$ 1,150

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Fri 25/9

10:05 a.m.-8:55 p.m.

3 stops29h 50m

London Heathrow

Fri 2/10

6:30 a.m.-9:40 p.m.

3 stops20h 10m

C$ 1,151

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Fri 25/9

3:30 p.m.-1:45 p.m.

3 stops17h 15m

London Heathrow

Fri 2/10

6:15 a.m.-5:45 p.m.

2 stops16h 30m

C$ 1,238

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from London, 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 airline that flies from London to London Heathrow?

Air Canada is the most popular carrier operating from London to London Heathrow

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 London, Ontario according to our data. Air Canada is the first choice among our users, with 59% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 16 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

When to book flights from London, Ontario to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London, Ontario to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London, Ontario to London Heathrow Airport (YXU to LHR) flight deals and tips

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

Fastest flight time

20h 05m

Direct flights

None
The fastest flight from London, Ontario to London Heathrow Airport takes 20h 05m
There are no direct flights from London, Ontario to London Heathrow Airport. There are no popular flight routes from London, Ontario to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from London, Ontario to London Heathrow Airport

  • How far is London to London Heathrow by plane?

    A flight from London to London Heathrow will travel around 5852.6 km. In terms of flight time, this usually takes a little over 20h 05m.

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

    Prices for flights from London Airport to London Heathrow Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to London Heathrow Airport.

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

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Stratford-upon-Avon
Milton Keynes
Gatwick
Northampton
Wembley
Staines-upon-Thames
Slough
Poole
Banbury
Ramsgate
Kenilworth
Swindon
Watford
Wokingham
Dartford
Salisbury
Feltham
Hayes
Crawley

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for London to London flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to London from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for London to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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