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Cheap flights from London Gatwick Airport to Los Angeles from $478

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 Gatwick Airport to Los Angeles departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Gatwick Airport to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
8:40 pm - 6:57 pm
LGW
-
ONT
30h 17m
2 stops
British Airways Logo
10:25 am - 8:00 pm
ONT
-
LGW
25h 35m
2 stops
$746British Airways
Tue, Sep 15 - Wed, Oct 14
Delta Logo
10:25 am - 10:34 pm
LGW
-
ONT
20h 09m
2 stops
Delta Logo
1:35 pm - 4:00 pm
ONT
-
LGW
18h 25m
2 stops
$759Delta
Sat, May 23 - Sat, May 30
British Airways Logo
11:30 am - 9:29 am
LGW
-
ONT
29h 59m
2 stops
British Airways Logo
10:25 am - 8:00 pm
ONT
-
LGW
25h 35m
2 stops
$774British Airways
Thu, Sep 17 - Thu, Oct 15
British Airways Logo
11:30 am - 11:06 pm
LGW
-
ONT
19h 36m
2 stops
British Airways Logo
7:20 am - 8:00 pm
ONT
-
LGW
28h 40m
2 stops
$782British Airways
Wed, Sep 16 - Thu, Oct 15
Iberia Logo
11:30 am - 11:06 pm
LGW
-
ONT
19h 36m
2 stops
Iberia Logo
12:35 pm - 8:00 pm
ONT
-
LGW
23h 25m
2 stops
$783Iberia
Wed, Sep 16 - Wed, Oct 14
British Airways Logo
8:40 pm - 11:06 pm
LGW
-
ONT
34h 26m
2 stops
British Airways Logo
10:25 am - 8:00 pm
ONT
-
LGW
25h 35m
2 stops
$785British Airways
Tue, Sep 15 - Fri, Oct 9
Iberia Logo
11:30 am - 11:46 pm
LGW
-
ONT
20h 16m
2 stops
Iberia Logo
10:59 am - 8:00 pm
ONT
-
LGW
25h 01m
2 stops
$786Iberia
Wed, May 6 - Mon, May 11
Iberia Logo
11:30 am - 11:06 pm
LGW
-
ONT
19h 36m
2 stops
Iberia Logo
10:25 am - 10:50 am
ONT
-
LGW
40h 25m
2 stops
$792Iberia
Wed, Sep 16 - Thu, Oct 15
Iberia Logo
11:30 am - 11:06 pm
LGW
-
ONT
43h 36m
2 stops
Iberia Logo
7:20 am - 7:00 pm
ONT
-
LGW
28h 40m
2 stops
$794Iberia
Sun, Sep 20 - Wed, Oct 28
Iberia Logo
8:40 pm - 10:36 pm
LGW
-
ONT
33h 56m
2 stops
Iberia Logo
10:59 am - 8:00 pm
ONT
-
LGW
25h 01m
2 stops
$797Iberia
Tue, May 5 - Mon, May 11

British Airways flights from London Gatwick Airport to Ontario

Our best British Airways deals on London Gatwick Airport to Ontario flight tickets
British Airways
Sep 15
LGW8:40 pmLondon Gatwick
30h 17m
2 stops
ONT6:57 pmOntario
Oct 14
ONT10:25 amOntario
25h 35m
2 stops
LGW8:00 pmLondon Gatwick
$746
British Airways
Sep 17
LGW11:30 amLondon Gatwick
29h 59m
2 stops
ONT9:29 amOntario
Oct 15
ONT10:25 amOntario
25h 35m
2 stops
LGW8:00 pmLondon Gatwick
$774
British Airways
Sep 16
LGW11:30 amLondon Gatwick
19h 36m
2 stops
ONT11:06 pmOntario
Oct 15
ONT7:20 amOntario
28h 40m
2 stops
LGW8:00 pmLondon Gatwick
$782

Delta flights from London Gatwick Airport to Ontario

Our best Delta deals on London Gatwick Airport to Ontario flight tickets
Delta
May 23
LGW10:25 amLondon Gatwick
20h 09m
2 stops
ONT10:34 pmOntario
May 30
ONT1:35 pmOntario
18h 25m
2 stops
LGW4:00 pmLondon Gatwick
$759
Delta
Jul 14
LGW10:35 amLondon Gatwick
19h 09m
2 stops
ONT9:44 pmOntario
Aug 5
ONT7:05 amOntario
18h 20m
2 stops
LGW9:25 amLondon Gatwick
$1,155
Delta
Jul 14
LGW10:35 amLondon Gatwick
19h 09m
2 stops
ONT9:44 pmOntario
Aug 5
ONT7:05 amOntario
18h 20m
2 stops
LGW9:25 amLondon Gatwick
$1,161

momondo Fare Finder

 
Customize your flight search to find flights from London Gatwick Airport to Ontario 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 832,500 searches. Data last updated April 12, 2026.
Use the filters below to find and compare flights from London Gatwick Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 9/15

8:40 pm-6:57 pm

2 stops30h 17m

Ontario

Wed 10/14

10:25 am-8:00 pm

2 stops25h 35m

$746
Quickest round-trip

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Sat 5/23

10:25 am-10:34 pm

2 stops20h 09m

Ontario

Sat 5/30

1:35 pm-4:00 pm

2 stops18h 25m

$759

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 9/17

11:30 am-9:29 am

2 stops29h 59m

Ontario

Thu 10/15

10:25 am-8:00 pm

2 stops25h 35m

$774

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 9/16

11:30 am-11:06 pm

2 stops19h 36m

Ontario

Thu 10/15

7:20 am-8:00 pm

2 stops28h 40m

$782

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 9/16

11:30 am-11:06 pm

2 stops19h 36m

Ontario

Wed 10/14

12:35 pm-8:00 pm

2 stops23h 25m

$783

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 9/15

8:40 pm-11:06 pm

2 stops34h 26m

Ontario

Fri 10/9

10:25 am-8:00 pm

2 stops25h 35m

$785

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 5/6

11:30 am-11:46 pm

2 stops20h 16m

Ontario

Mon 5/11

10:59 am-8:00 pm

2 stops25h 01m

$786

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 9/16

11:30 am-11:06 pm

2 stops19h 36m

Ontario

Thu 10/15

10:25 am-10:50 am

2 stops40h 25m

$792

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Sun 9/20

11:30 am-11:06 pm

2 stops43h 36m

Ontario

Wed 10/28

7:20 am-7:00 pm

2 stops28h 40m

$794

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 5/5

8:40 pm-10:36 pm

2 stops33h 56m

Ontario

Mon 5/11

10:59 am-8:00 pm

2 stops25h 01m

$797

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 Gatwick 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 cheapest airline that flies from London Gatwick to Ontario?

British Airways, Iberia, and KLM are the most popular carriers operating from London Gatwick to Ontario

When to book flights from London Gatwick Airport to Ontario

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

Cheap London Gatwick Airport to Ontario (LGW to ONT) flight deals and tips

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

Fastest flight time

17h 32m

Direct flights

None
The fastest flight from London Gatwick Airport to Ontario takes 17h 32m
There are no direct flights from London Gatwick Airport to Ontario. There are no popular flight routes from London Gatwick Airport to Ontario.
Search flight deals

Frequently asked questions about flying from London Gatwick Airport to Ontario

  • How far is London Gatwick to Ontario by plane?

    The straight-line distance from London Gatwick to Ontario is 5431.4 mi. By plane, this route typically takes 17h 32m.

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

    Prices for flights from London Gatwick Airport to Ontario Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Gatwick Airport to Ontario Airport.

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

    The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Ontario for you.

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 you have performed a search for London to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from London to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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