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Cheap flights from London to Los Angeles from €493

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 Los Angeles departing on 5/9. 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
0 bags
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Cheap return flights

British Airways Logo
12:00 - 22:33LHR-ONT
18h 33m1 stop
British Airways Logo
13:10 - 12:50ONT-LHR
15h 40m1 stop
€493British Airways
Find Deal
Fri, 5 Sep - Sat, 13 Sep
American Airlines Logo
12:00 - 18:25LHR-ONT
14h 25m1 stop
American Airlines Logo
16:45 - 12:50ONT-LHR
12h 05m1 stop
€493American Airlines
Find Deal
Thu, 28 Aug - Wed, 10 Sep
British Airways Logo
14:25 - 21:41LHR-ONT
15h 16m1 stop
British Airways Logo
10:57 - 08:15ONT-LHR
13h 18m1 stop
€494British Airways
Find Deal
Mon, 24 Nov - Fri, 5 Dec
Delta Logo
06:30 - 19:42LHR-ONT
21h 12m2 stops
Delta Logo
06:00 - 12:15ONT-LHR
22h 15m2 stops
€497Delta
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Tue, 25 Nov - Fri, 5 Dec
Delta Logo
06:30 - 22:42LHR-ONT
24h 12m2 stops
Delta Logo
06:00 - 12:15ONT-LHR
22h 15m2 stops
€498Delta
Find Deal
Tue, 25 Nov - Fri, 5 Dec
KLM Logo
09:20 - 19:42LHR-ONT
17h 22m1 stop
KLM Logo
12:00 - 10:35ONT-LHR
14h 35m1 stop
€512KLM
Find Deal
Sat, 1 Nov - Sat, 8 Nov
KLM Logo
10:45 - 16:14LHR-ONT
13h 29m1 stop
KLM Logo
12:00 - 10:35ONT-LHR
14h 35m1 stop
€513KLM
Find Deal
Thu, 6 Nov - Tue, 11 Nov
United Airlines Logo
10:05 - 17:34LHR-ONT
15h 29m1 stop
United Airlines Logo
13:29 - 09:40ONT-LHR
12h 11m1 stop
€572United Airlines
Find Deal
Wed, 12 Nov - Tue, 2 Dec
 Logo
10:15 - 21:58LHR-ONT
19h 43m1 stop
 Logo
11:00 - 08:15ONT-LHR
13h 15m1 stop
€575
Find Deal
Wed, 17 Dec - Wed, 31 Dec
United Airlines Logo
14:50 - 20:24LHR-ONT
13h 34m1 stop
United Airlines Logo
13:53 - 10:25ONT-LHR
12h 32m1 stop
€605United Airlines
Find Deal
Fri, 26 Sep - Wed, 8 Oct

British Airways flights from London to Ontario

Our best British Airways deals on London to Ontario flight tickets
British Airways
5 Sept
LHR12:00London Heathrow
18h 33m
1 stop
ONT22:33Ontario
13 Sept
ONT13:10Ontario
15h 40m
1 stop
LHR12:50London Heathrow
British Airways
24 Nov
LHR14:25London Heathrow
15h 16m
1 stop
ONT21:41Ontario
5 Dec
ONT10:57Ontario
13h 18m
1 stop
LHR08:15London Heathrow
British Airways
24 Nov
LHR14:30London Heathrow
15h 11m
1 stop
ONT21:41Ontario
5 Dec
ONT12:53Ontario
13h 07m
1 stop
LHR10:00London Heathrow

Delta flights from London to Ontario

Our best Delta deals on London to Ontario flight tickets
Delta
25 Nov
LHR06:30London Heathrow
21h 12m
2 stops
ONT19:42Ontario
5 Dec
ONT06:00Ontario
20h 00m
1 stop
LHR10:00London Heathrow
Delta
25 Nov
LHR06:30London Heathrow
24h 12m
2 stops
ONT22:42Ontario
5 Dec
ONT06:00Ontario
22h 15m
2 stops
LHR12:15London Heathrow
Delta
18 Aug
LHR06:30London Heathrow
23h 50m
2 stops
ONT22:20Ontario
25 Aug
ONT09:50Ontario
16h 00m
1 stop
LHR09:50London Heathrow

See travel insights to Los Angeles from

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 to Ontario?

If you don’t want to visit Ontario in February, then you should wait until January to fly from London, when ticket prices are also cheap, with an average price of €473.

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

You are more likely to see cheaper flights to Ontario from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around €622 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from London for as low as €467 on momondo.

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

€679

Fastest flight time

13h 19m

Direct flights

None

Airports in Ontario

1 airport
The best one-way flight to Ontario from London in the past 72 hours is €679. The best return flight deal from London to Ontario found on momondo in the last 72 hours is €493.
The fastest flight from London to Ontario takes 13h 19m
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 19m 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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1 adult
Thu 10/7
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