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Cheap flights from London to Ontario from €534

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London to Ontario departing on 4/12. 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
0 bags
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Find the cheapest flights from London to Los Angeles

Cheap return flights

These are some of the best return flight deals from London to Los Angeles that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London to Los Angeles.

Cheap last-minute flights

Planning a quick getaway from London to Los Angeles? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Los Angeles, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from London to Los Angeles

Find recent round-trip train or bus tickets from London to Los Angeles.

All round-trip flight deals to Los Angeles

The cheapest plane tickets to Los Angeles found on KAYAK recently.
06:20 - 22:45LHR-ONT
24h 25m2 stops
07:10 - 06:20ONT-LHR
15h 10m1 stop
€534Delta
Find Deal
Wed, 4 Dec - Tue, 10 Dec
06:20 - 16:45LHR-ONT
18h 25m2 stops
06:00 - 07:05ONT-LHR
17h 05m2 stops
€535Delta
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Wed, 4 Dec - Tue, 10 Dec
11:10 - 23:58LHR-ONT
20h 48m2 stops
06:10 - 05:55ONT-LHR
15h 45m2 stops
€604United Airlines
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Tue, 3 Dec - Tue, 10 Dec
10:45 - 16:28LHR-ONT
13h 43m1 stop
13:00 - 10:35ONT-LHR
13h 35m1 stop
€609KLM
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Tue, 21 Jan - Mon, 27 Jan
10:45 - 16:28LHR-ONT
13h 43m1 stop
13:00 - 10:35ONT-LHR
13h 35m1 stop
€610KLM
Find Deal
Wed, 8 Jan - Mon, 13 Jan
12:45 - 21:57LHR-ONT
17h 12m1 stop
05:10 - 09:40ONT-LHR
20h 30m1 stop
€630United Airlines
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Sat, 25 Jan - Mon, 3 Feb
13:50 - 22:00LHR-ONT
16h 10m1 stop
10:51 - 09:40ONT-LHR
14h 49m1 stop
€677British Airways
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Mon, 17 Feb - Fri, 28 Feb
14:30 - 22:03LHR-ONT
15h 33m1 stop
10:42 - 09:40ONT-LHR
14h 58m1 stop
€686British Airways
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Fri, 6 Dec - Tue, 10 Dec
10:25 - 23:58LHR-ONT
21h 33m2 stops
05:05 - 09:40ONT-LHR
20h 35m1 stop
€777
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Fri, 13 Dec - Wed, 25 Dec
12:15 - 23:24LHR-ONT
18h 09m2 stops
11:30 - 10:50ONT-LHR
16h 20m2 stops
€876
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Mon, 17 Mar - Wed, 26 Mar
06:30 - 20:44LHR-ONT
22h 14m2 stops
€636United Airlines
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Fri, 29 Nov
07:30 - 20:44LHR-ONT
21h 14m2 stops
€637United Airlines
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Mon, 25 Nov
10:05 - 22:23LHR-ONT
20h 18m1 stop
€710
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Tue, 26 Nov
08:25 - 22:22LHR-ONT
21h 57m1 stop
€860JetBlue
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Thu, 1 May
12:15 - 23:59LHR-ONT
19h 44m2 stops
€883
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Tue, 26 Nov
11:55 - 22:22LHR-ONT
18h 27m1 stop
€1,103JetBlue
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Sat, 17 May
12:30 - 22:52LHR-ONT
18h 22m1 stop
€1,384Delta
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Mon, 17 Feb
12:30 - 22:52LHR-ONT
18h 22m1 stop
€1,385Delta
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Mon, 3 Feb
10:45 - 16:28LHR-ONT
13h 43m1 stop
€1,414KLM
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Wed, 8 Jan
12:30 - 22:52LHR-ONT
18h 22m1 stop
€1,463KLM
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Fri, 7 Feb
10:05 - 17:43LHR-ONT
15h 38m1 stop
13:55 - 12:00ONT-LHR
14h 05m1 stop
€910United Airlines
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Mon, 25 Nov - Mon, 2 Dec
10:05 - 17:43LHR-ONT
15h 38m1 stop
13:55 - 12:00ONT-LHR
14h 05m1 stop
€912United Airlines
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Mon, 25 Nov - Mon, 2 Dec
14:30 - 23:01LHR-ONT
16h 31m1 stop
13:00 - 10:35ONT-LHR
13h 35m1 stop
€930KLM
Find Deal
Mon, 25 Nov - Wed, 29 Jan
10:05 - 17:43LHR-ONT
15h 38m1 stop
13:55 - 12:00ONT-LHR
14h 05m1 stop
€946United Airlines
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Thu, 21 Nov - Thu, 28 Nov
10:05 - 17:43LHR-ONT
15h 38m1 stop
13:55 - 12:00ONT-LHR
14h 05m1 stop
€948United Airlines
Find Deal
Thu, 21 Nov - Thu, 28 Nov
10:05 - 17:43LHR-ONT
15h 38m1 stop
13:55 - 12:00ONT-LHR
14h 05m1 stop
€982United Airlines
Find Deal
Sun, 24 Nov - Sun, 1 Dec
10:40 - 18:33LHR-ONT
15h 53m1 stop
14:53 - 12:05ONT-LHR
13h 12m1 stop
€1,034British Airways
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Fri, 22 Nov - Sun, 24 Nov
14:30 - 23:01LHR-ONT
16h 31m1 stop
12:11 - 10:35ONT-LHR
14h 24m1 stop
€1,482KLM
Find Deal
Mon, 25 Nov - Tue, 10 Dec
12:15 - 23:59LHR-ONT
19h 44m2 stops
10:00 - 10:50ONT-LHR
16h 50m2 stops
€5,476
Find Deal
Sun, 24 Nov - Wed, 27 Nov
10:40 - 18:33LHR-ONT
15h 53m1 stop
10:43 - 07:20ONT-LHR
12h 37m1 stop
€11,108British Airways
Find Deal
Sat, 23 Nov - Sun, 1 Dec

Delta flights from London to Ontario

Our best Delta deals on London to Ontario flight tickets
Delta
4 Dec
LHR06:20London Heathrow
24h 25m
2 stops
ONT22:45Ontario
10 Dec
ONT07:10Ontario
15h 10m
1 stop
LHR06:20London Heathrow
Delta
4 Dec
LHR06:20London Heathrow
18h 25m
2 stops
ONT16:45Ontario
10 Dec
ONT06:00Ontario
17h 05m
2 stops
LHR07:05London Heathrow
Delta
25 Jan
LHR06:30London Heathrow
24h 02m
2 stops
ONT22:32Ontario
3 Feb
ONT13:00Ontario
14h 40m
1 stop
LHR11:40London Heathrow

British Airways flights from London to Ontario

Our best British Airways deals on London to Ontario flight tickets
British Airways
17 Feb
LHR13:50London Heathrow
16h 10m
1 stop
ONT22:00Ontario
28 Feb
ONT10:51Ontario
14h 49m
1 stop
LHR09:40London Heathrow
British Airways
6 Dec
LHR14:30London Heathrow
15h 33m
1 stop
ONT22:03Ontario
10 Dec
ONT10:42Ontario
14h 58m
1 stop
LHR09:40London Heathrow
British Airways
12 Dec
LHR07:25London Heathrow
22h 48m
2 stops
ONT22:13Ontario
24 Dec
ONT06:05Ontario
22h 00m
1 stop
LHR12:05London Heathrow

How to get the cheapest flight ticket from London to 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

What is the typical price of a round-trip flight between London and Ontario?

What is the cheapest month to fly from London to Ontario?

April. The cheapest time of year to fly to Ontario from London is April. The most expensive is August.

What is the cheapest London to Ontario flight route?

London Heathrow - Ontario. Fly from London Heathrow to Ontario for the best London - Ontario flight prices

How far in advance should you book London to Ontario flights?

58 days before. The cheapest time to buy a flight from London to Ontario is approximately 58 days to departure

Can stopping save me money on London to Ontario flights?

You could potentially save up to 1% on your flight if you consider stops on a London to Ontario flight.

When to book flights from London to Ontario

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

Cheap London to Ontario (LON to ONT) flight deals and tips

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

Best price found

€636

Fastest flight time

13h 27m

Direct flights

None

Airports in Ontario

1 airport
The best one-way flight to Ontario from London in the past 72 hours is €636. The best return flight deal from London to Ontario found on momondo in the last 72 hours is €534.
The fastest flight from London to Ontario takes 13h 27m
There are no direct flights from London to Ontario. Popular non-direct route for this connection is London Heathrow Airport - Ontario Airport.
There is 1 airport near Ontario: Ontario (ONT)

  • How far is London to Ontario by plane?

    A flight from London to Ontario will travel around 8718.6 km. Typically, this will take 13h 27m by plane in normal conditions.

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

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

  • How old do you have to be to fly from London to Ontario 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 London to Ontario Airport.

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

    The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from London.

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

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

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

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 Ontario from London.

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

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from London and alert you when they change.


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