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Cheap flights from the United Kingdom to Los Angeles from $445

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United Kingdom to Los Angeles

Recent round-trip flight deals from the United Kingdom to Los Angeles

Enter your travel dates to find the best prices.
United Airlines Logo
9:00 am - 8:15 pmLHR  London Heathrow-ONT Ontario
19h 15m2 stops Zurich San Francisco
United Airlines Logo
6:00 am - 11:15 amONT  Ontario-LHR London Heathrow
21h 15m1 stop San Francisco
$499United Airlines
Mon, Nov 9 - Mon, Nov 16
United Airlines Logo
9:00 am - 8:15 pmLHR  London Heathrow-ONT Ontario
19h 15m2 stops Zurich San Francisco
United Airlines Logo
6:37 pm - 9:20 pmONT  Ontario-LHR London Heathrow
18h 43m2 stops San Francisco Newark
$499United Airlines
Mon, Nov 9 - Mon, Nov 16
United Airlines Logo
9:00 am - 8:38 pmLHR  London Heathrow-ONT Ontario
19h 38m2 stops Zurich San Francisco
United Airlines Logo
5:00 am - 9:40 amONT  Ontario-LHR London Heathrow
20h 40m1 stop Denver Intl
$499United Airlines
Thu, Dec 3 - Wed, Dec 9
United Airlines Logo
9:00 am - 8:38 pmLHR  London Heathrow-ONT Ontario
19h 38m2 stops Zurich San Francisco
United Airlines Logo
1:40 pm - 9:40 amONT  Ontario-LHR London Heathrow
12h 00m1 stop Denver Intl
$499United Airlines
Wed, Dec 2 - Wed, Dec 9
United Airlines Logo
9:00 am - 8:15 pmLHR  London Heathrow-ONT Ontario
19h 15m2 stops Zurich San Francisco
United Airlines Logo
6:00 am - 7:40 amONT  Ontario-LHR London Heathrow
17h 40m1 stop Houston George Bush Intcntl
$500United Airlines
Wed, Nov 11 - Wed, Nov 18
United Airlines Logo
9:00 am - 8:15 pmLHR  London Heathrow-ONT Ontario
19h 15m2 stops Zurich San Francisco
United Airlines Logo
6:00 am - 8:25 amONT  Ontario-LHR London Heathrow
18h 25m2 stops Houston George Bush Intcntl Newark
$500United Airlines
Wed, Nov 11 - Wed, Nov 18
United Airlines Logo
7:30 am - 8:51 pmLHR  London Heathrow-ONT Ontario
21h 21m2 stops Frankfurt am Main Denver Intl
United Airlines Logo
5:00 am - 9:40 amONT  Ontario-LHR London Heathrow
20h 40m1 stop Denver Intl
$508United Airlines
Sun, Nov 8 - Sun, Nov 15
United Airlines Logo
9:30 am - 8:15 pmLHR  London Heathrow-ONT Ontario
18h 45m2 stops Frankfurt am Main San Francisco
United Airlines Logo
5:00 am - 7:55 amONT  Ontario-LHR London Heathrow
18h 55m2 stops Denver Intl Chicago O'Hare Intl
$508United Airlines
Wed, Nov 4 - Sun, Nov 8
British Airways Logo
2:35 pm - 10:08 pmLHR  London Heathrow-ONT Ontario
15h 33m1 stop Phoenix Sky Harbor Intl
British Airways Logo
5:02 pm - 1:35 pmONT  Ontario-LHR London Heathrow
12h 33m1 stop Phoenix Sky Harbor Intl
$645British Airways
Mon, Mar 1 - Mon, Mar 8
British Airways Logo
11:15 am - 6:51 pmLHR  London Heathrow-ONT Ontario
15h 36m1 stop Dallas/Fort Worth
British Airways Logo
4:59 pm - 1:35 pmONT  Ontario-LHR London Heathrow
12h 36m1 stop Phoenix Sky Harbor Intl
$646British Airways
Mon, Feb 8 - Mon, Feb 22

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Alaska Airlines flights from United Kingdom to Ontario

Our best Alaska Airlines deals on United Kingdom to Ontario flight tickets
Alaska Airlines
Nov 23
LHR2:45 pmLondon Heathrow
16h 46m
1 stop
ONT11:31 pmOntario
Dec 9
ONT11:57 amOntario
16h 23m
1 stop
LHR12:20 pmLondon Heathrow
$560
Alaska Airlines
Oct 1
LHR5:00 pmLondon Heathrow
14h 24m
1 stop
ONT11:24 pmOntario
Oct 14
ONT2:13 pmOntario
16h 52m
1 stop
LHR3:05 pmLondon Heathrow
$561
Alaska Airlines
Oct 14
LHR5:00 pmLondon Heathrow
28h 16m
1 stop
ONT1:16 pmOntario
Oct 31
ONT11:13 amOntario
18h 07m
1 stop
LHR12:20 pmLondon Heathrow
$563

Virgin Atlantic flights from United Kingdom to Ontario

Our best Virgin Atlantic deals on United Kingdom to Ontario flight tickets
Virgin Atlantic
Nov 6
LHR3:45 pmLondon Heathrow
38h 58m
2 stops
ONT10:43 pmOntario
Nov 13
ONT1:15 pmOntario
33h 05m
2 stops
LHR6:20 amLondon Heathrow
$528
Virgin Atlantic
Nov 4
LHR12:20 pmLondon Heathrow
18h 23m
1 stop
ONT10:43 pmOntario
Nov 8
ONT7:07 amOntario
16h 43m
1 stop
LHR7:50 amLondon Heathrow
$534
Virgin Atlantic
Oct 26
LHR12:20 pmLondon Heathrow
17h 23m
1 stop
ONT10:43 pmOntario
Nov 2
ONT12:16 pmOntario
34h 09m
1 stop
LHR6:25 amLondon Heathrow
$535

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Mon 11/9

9:00 am-8:15 pm

2 stops19h 15m

Ontario

Mon 11/16

6:00 am-11:15 am

1 stop21h 15m

$499

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Mon 11/9

9:00 am-8:15 pm

2 stops19h 15m

Ontario

Mon 11/16

6:37 pm-9:20 pm

2 stops18h 43m

$499

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Thu 12/3

9:00 am-8:38 pm

2 stops19h 38m

Ontario

Wed 12/9

5:00 am-9:40 am

1 stop20h 40m

$499

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Wed 12/2

9:00 am-8:38 pm

2 stops19h 38m

Ontario

Wed 12/9

1:40 pm-9:40 am

1 stop12h 00m

$499

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Wed 11/11

9:00 am-8:15 pm

2 stops19h 15m

Ontario

Wed 11/18

6:00 am-7:40 am

1 stop17h 40m

$500

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Wed 11/11

9:00 am-8:15 pm

2 stops19h 15m

Ontario

Wed 11/18

6:00 am-8:25 am

2 stops18h 25m

$500

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Sun 11/8

7:30 am-8:51 pm

2 stops21h 21m

Ontario

Sun 11/15

5:00 am-9:40 am

1 stop20h 40m

$508

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Wed 11/4

9:30 am-8:15 pm

2 stops18h 45m

Ontario

Sun 11/8

5:00 am-7:55 am

2 stops18h 55m

$508
Quickest round-trip

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Mon 3/1

2:35 pm-10:08 pm

1 stop15h 33m

Ontario

Mon 3/8

5:02 pm-1:35 pm

1 stop12h 33m

$645

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Mon 2/8

11:15 am-6:51 pm

1 stop15h 36m

Ontario

Mon 2/22

4:59 pm-1:35 pm

1 stop12h 36m

$646

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 Los Angeles from

How to get the cheapest flight ticket from United Kingdom 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 cheapest month to fly to Ontario?

In general, January is the cheapest month to fly from United Kingdom to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $553. If you aren’t able to travel during the month of January, then book flights to Ontario from United Kingdom during February instead. Flights to Ontario in February, while not as cheap as those in January, still average around $583.

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

You could potentially save up to 5% on your flight if you consider stops on a United Kingdom to Ontario flight.

Cheap United Kingdom to Ontario flight deals and tips

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

Best Price Found

$445

Fastest flight time

14h 08m

Direct flights

None
The best one-way flight to Ontario from United Kingdom in the past 72 hours is $445. The best round-trip flight deal from United Kingdom to Ontario found on momondo in the last 72 hours is $499.
The fastest flight from United Kingdom to Ontario takes 14h 08m
There are no direct flights from United Kingdom to Ontario. There are no popular flight routes from United Kingdom to Ontario.
Search flight deals

Frequently asked questions about flying from the United Kingdom to Ontario

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

    Prices for flights from United Kingdom to Ontario Airport refresh daily.

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

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

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

    The necessary travel and health documents for your Ontario 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.

Best airlines flying from United Kingdom to Ontario

Compare and see reviews for airlines that fly from United Kingdom to Ontario with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $567Free CancellationRating
6.7
8,236 reviews
Search British Airways flights

Why use momondo?

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

It is quick and easy to find United Kingdom to Ontario 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 Ontario that suits you.

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

momondo does allow users to show only those flights to Ontario 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 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 United Kingdom.

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

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

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