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Cheap flights from London Heathrow Airport to Los Angeles from $442

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London Heathrow Airport to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:30 am - 8:15 pmLHR  London Heathrow-ONT Ontario
17h 45m2 stops Frankfurt am Main San Francisco
United Airlines Logo
5:00 am - 5:55 amONT  Ontario-LHR London Heathrow
16h 55m2 stops Denver Intl Chicago O'Hare Intl
$508United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
9:30 am - 8:15 pmLHR  London Heathrow-ONT Ontario
17h 45m2 stops Frankfurt am Main San Francisco
United Airlines Logo
6:00 am - 7:40 amONT  Ontario-LHR London Heathrow
17h 40m1 stop Houston George Bush Intcntl
$508United Airlines
Tue, Oct 27 - Tue, Nov 3
Air Canada Logo
6:00 pm - 9:11 pmLHR  London Heathrow-ONT Ontario
35h 11m2 stops Toronto Pearson Intl Denver Intl
Air Canada Logo
1:40 pm - 8:30 amONT  Ontario-LHR London Heathrow
34h 50m2 stops Denver Intl Toronto Pearson Intl
$518Air Canada
Tue, Dec 1 - Tue, Dec 8
Air Canada Logo
3:05 pm - 10:51 pmLHR  London Heathrow-ONT Ontario
39h 46m2 stops Vancouver Intl San Francisco
Air Canada Logo
6:07 am - 1:20 pmONT  Ontario-LHR London Heathrow
23h 13m2 stops San Francisco Vancouver Intl
$524Air Canada
Wed, Oct 14 - Sun, Oct 18
Air Canada Logo
3:00 pm - 10:51 pmLHR  London Heathrow-ONT Ontario
39h 51m2 stops Vancouver Intl San Francisco
Air Canada Logo
6:07 am - 1:20 pmONT  Ontario-LHR London Heathrow
23h 13m2 stops San Francisco Vancouver Intl
$524Air Canada
Thu, Oct 15 - Sun, Oct 18
Air Canada Logo
3:05 pm - 8:31 pmLHR  London Heathrow-ONT Ontario
37h 26m2 stops Vancouver Intl San Francisco
Air Canada Logo
6:07 am - 1:20 pmONT  Ontario-LHR London Heathrow
23h 13m2 stops San Francisco Vancouver Intl
$524Air Canada
Tue, Oct 13 - Sun, Oct 18
Virgin Atlantic Logo
6:30 am - 11:55 pmLHR  London Heathrow-ONT Ontario
25h 25m2 stops Amsterdam Schiphol Salt Lake City
Virgin Atlantic Logo
6:20 am - 10:40 amONT  Ontario-LHR London Heathrow
21h 20m1 stop Seattle/Tacoma Intl
$531Virgin Atlantic
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
11:35 am - 9:00 pmLHR  London Heathrow-ONT Ontario
17h 25m1 stop Denver Intl
United Airlines Logo
6:00 am - 7:25 amONT  Ontario-LHR London Heathrow
17h 25m1 stop San Francisco
$533United Airlines
Fri, Dec 25 - Fri, Jan 1
British Airways Logo
2:35 pm - 10:07 pmLHR  London Heathrow-ONT Ontario
14h 32m1 stop Phoenix Sky Harbor Intl
British Airways Logo
10:31 am - 6:50 amONT  Ontario-LHR London Heathrow
13h 19m1 stop Dallas/Fort Worth
$618British Airways
Tue, Mar 16 - Tue, Mar 23
British Airways Logo
10:05 am - 6:44 pmLHR  London Heathrow-ONT Ontario
15h 39m1 stop Dallas/Fort Worth
British Airways Logo
4:51 pm - 1:35 pmONT  Ontario-LHR London Heathrow
12h 44m1 stop Phoenix Sky Harbor Intl
$632British Airways
Sat, Oct 31 - Mon, Nov 9

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Air Canada flights from London Heathrow Airport to Ontario

Our best Air Canada deals on London Heathrow Airport to Ontario flight tickets
Air Canada
Oct 6
LHR8:30 amLondon Heathrow
20h 28m
2 stops
ONT8:58 pmOntario
Oct 15
ONT6:07 amOntario
21h 43m
2 stops
LHR11:50 amLondon Heathrow
$511
Air Canada
Dec 1
LHR6:00 pmLondon Heathrow
35h 11m
2 stops
ONT9:11 pmOntario
Dec 8
ONT1:40 pmOntario
34h 50m
2 stops
LHR8:30 amLondon Heathrow
$518
Air Canada
Oct 13
LHR3:05 pmLondon Heathrow
37h 26m
2 stops
ONT8:31 pmOntario
Oct 18
ONT6:07 amOntario
23h 13m
2 stops
LHR1:20 pmLondon Heathrow
$524

United Airlines flights from London Heathrow Airport to Ontario

Our best United Airlines deals on London Heathrow Airport to Ontario flight tickets
United Airlines
Oct 27
LHR9:30 amLondon Heathrow
17h 45m
2 stops
ONT8:15 pmOntario
Nov 3
ONT5:00 amOntario
16h 55m
2 stops
LHR5:55 amLondon Heathrow
$508
United Airlines
Dec 24
LHR10:00 amLondon Heathrow
20h 11m
1 stop
ONT10:11 pmOntario
Jan 1
ONT6:00 amOntario
17h 25m
1 stop
LHR7:25 amLondon Heathrow
$533
United Airlines
Dec 1
LHR9:30 amLondon Heathrow
43h 41m
2 stops
ONT9:11 pmOntario
Dec 8
ONT5:00 amOntario
20h 40m
1 stop
LHR9:40 amLondon Heathrow
$536

momondo Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport 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

Tue 10/27

9:30 am-8:15 pm

2 stops17h 45m

Ontario

Tue 11/3

5:00 am-5:55 am

2 stops16h 55m

$508

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Tue 10/27

9:30 am-8:15 pm

2 stops17h 45m

Ontario

Tue 11/3

6:00 am-7:40 am

1 stop17h 40m

$508

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Tue 12/1

6:00 pm-9:11 pm

2 stops35h 11m

Ontario

Tue 12/8

1:40 pm-8:30 am

2 stops34h 50m

$518

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Wed 10/14

3:05 pm-10:51 pm

2 stops39h 46m

Ontario

Sun 10/18

6:07 am-1:20 pm

2 stops23h 13m

$524

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Thu 10/15

3:00 pm-10:51 pm

2 stops39h 51m

Ontario

Sun 10/18

6:07 am-1:20 pm

2 stops23h 13m

$524

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Tue 10/13

3:05 pm-8:31 pm

2 stops37h 26m

Ontario

Sun 10/18

6:07 am-1:20 pm

2 stops23h 13m

$524

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Wed 10/21

6:30 am-11:55 pm

2 stops25h 25m

Ontario

Sun 10/25

6:20 am-10:40 am

1 stop21h 20m

$531

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Fri 12/25

11:35 am-9:00 pm

1 stop17h 25m

Ontario

Fri 1/1

6:00 am-7:25 am

1 stop17h 25m

$533
Quickest round-trip

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Tue 3/16

2:35 pm-10:07 pm

1 stop14h 32m

Ontario

Tue 3/23

10:31 am-6:50 am

1 stop13h 19m

$618

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Sat 10/31

10:05 am-6:44 pm

1 stop15h 39m

Ontario

Mon 11/9

4:51 pm-1:35 pm

1 stop12h 44m

$632

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from London Heathrow Airport 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 Heathrow Airport and Ontario?

Prices are currently low for flights on this route.

Typical prices usually range from $615 to $661.
The lowest price recently found on this route was $508.

What is the cheapest month to fly to Ontario?

In general, January is the cheapest month to fly from London Heathrow Airport 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 London Heathrow Airport during February instead. Flights to Ontario in February, while not as cheap as those in January, still average around $567.

Can stopping save me money on London Heathrow Airport to Ontario flights?

You could potentially save up to 5% on your flight if you consider stops on a London Heathrow Airport to Ontario flight.

When to book flights from London Heathrow Airport to Ontario

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

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

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

Best Price Found

$442

Fastest flight time

13h 27m

Direct flights

None
The best one-way flight to Ontario from London Heathrow Airport in the past 72 hours is $442. The best round-trip flight deal from London Heathrow Airport to Ontario found on momondo in the last 72 hours is $508.
The fastest flight from London Heathrow Airport to Ontario takes 13h 27m
There are no direct flights from London Heathrow Airport to Ontario. There are no popular flight routes from London Heathrow Airport to Ontario.
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Ontario

  • How far is London Heathrow to Ontario by plane?

    London Heathrow and Ontario are 5408.1 mi apart from one another. 13h 27m is a normal flight duration for this route.

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

    Prices for flights from London Heathrow Airport to Ontario Airport are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Ontario Airport?

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

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

    The required travel and health documents for your Ontario 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 Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from London Heathrow Airport to Ontario?

Best airlines flying from London Heathrow Airport to Ontario

Compare and see reviews for airlines that fly from London Heathrow Airport to Ontario with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $567Free CancellationRating
6.7
8,244 reviews
Search British Airways flights

Why use momondo?

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

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

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

Yes. All flights to Ontario from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential London to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Ontario from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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