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Cheap flights from London Gatwick Airport to Los Angeles from $463

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 9/7. 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.
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
$740Iberia
Thu, Sep 24 - Thu, Oct 15
Iberia Logo
11:30 am - 11:36 pm
LGW
-
ONT
20h 06m
2 stops
Iberia Logo
2:22 pm - 8:00 pm
ONT
-
LGW
21h 38m
2 stops
$801Iberia
Thu, Oct 1 - Sat, Oct 10
Iberia Logo
7:40 pm - 11:53 am
LGW
-
ONT
24h 13m
2 stops
Iberia Logo
10:47 am - 7:00 pm
ONT
-
LGW
24h 13m
2 stops
$807Iberia
Mon, Nov 23 - Mon, Dec 14
Delta Logo
10:25 am - 10:41 pm
LGW
-
ONT
20h 16m
2 stops
Delta Logo
7:05 am - 9:25 am
ONT
-
LGW
18h 20m
2 stops
$856Delta
Fri, Jun 26 - Sun, Jul 12
Iberia Logo
11:30 am - 11:59 pm
LGW
-
ONT
20h 29m
2 stops
Iberia Logo
10:25 am - 8:00 pm
ONT
-
LGW
25h 35m
2 stops
$916Iberia
Tue, Jun 16 - Wed, Jul 22
Multiple Airlines Logo
9:15 am - 11:05 pm
LGW
-
ONT
21h 50m
2 stops
Multiple Airlines Logo
9:36 pm - 7:05 am
ONT
-
LGW
25h 29m
2 stops
$926Multiple Airlines
Tue, Jun 9 - Mon, Jun 22
Iberia Logo
8:40 pm - 11:59 pm
LGW
-
ONT
35h 19m
2 stops
Iberia Logo
2:15 pm - 8:00 pm
ONT
-
LGW
21h 45m
2 stops
$928Iberia
Mon, Jun 15 - Tue, Jul 21
Multiple Airlines Logo
9:15 am - 11:05 pm
LGW
-
ONT
21h 50m
2 stops
Multiple Airlines Logo
12:55 am - 7:05 am
ONT
-
LGW
22h 10m
2 stops
$932Multiple Airlines
Tue, Jun 9 - Mon, Jun 15
Iberia Logo
11:30 am - 11:59 pm
LGW
-
ONT
20h 29m
2 stops
Iberia Logo
10:25 am - 8:00 pm
ONT
-
LGW
25h 35m
2 stops
$934Iberia
Tue, Jun 16 - Wed, Jul 22
Iberia Logo
8:40 pm - 11:59 pm
LGW
-
ONT
35h 19m
2 stops
Iberia Logo
10:25 am - 8:00 pm
ONT
-
LGW
25h 35m
2 stops
$945Iberia
Mon, Jun 15 - Wed, Jul 22

Iberia flights from London Gatwick Airport to Ontario

Our best Iberia deals on London Gatwick Airport to Ontario flight tickets
Iberia
Sep 24
LGW11:30 amLondon Gatwick
19h 36m
2 stops
ONT11:06 pmOntario
Oct 15
ONT12:35 pmOntario
23h 25m
2 stops
LGW8:00 pmLondon Gatwick
$740
Iberia
Oct 1
LGW11:30 amLondon Gatwick
20h 06m
2 stops
ONT11:36 pmOntario
Oct 10
ONT2:22 pmOntario
21h 38m
2 stops
LGW8:00 pmLondon Gatwick
$801
Iberia
Nov 23
LGW7:40 pmLondon Gatwick
24h 13m
2 stops
ONT11:53 amOntario
Dec 14
ONT10:47 amOntario
24h 13m
2 stops
LGW7:00 pmLondon Gatwick
$807

British Airways flights from London Gatwick Airport to Ontario

Our best British Airways deals on London Gatwick Airport to Ontario flight tickets
British Airways
Jun 16
LGW11:30 amLondon Gatwick
20h 29m
2 stops
ONT11:59 pmOntario
Jul 23
ONT10:25 amOntario
25h 35m
2 stops
LGW8:00 pmLondon Gatwick
$960
British Airways
Jun 8
LGW9:05 pmLondon Gatwick
30h 51m
2 stops
ONT7:56 pmOntario
Jun 22
ONT7:00 amOntario
21h 50m
2 stops
LGW12:50 pmLondon Gatwick
$2,096
British Airways
Jun 8
LGW8:10 pmLondon Gatwick
31h 46m
2 stops
ONT7:56 pmOntario
Jun 23
ONT10:22 amOntario
18h 18m
2 stops
LGW12:40 pmLondon Gatwick
$2,141

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 May 27, 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

Thu 9/24

11:30 am-11:06 pm

2 stops19h 36m

Ontario

Thu 10/15

12:35 pm-8:00 pm

2 stops23h 25m

$740

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 10/1

11:30 am-11:36 pm

2 stops20h 06m

Ontario

Sat 10/10

2:22 pm-8:00 pm

2 stops21h 38m

$801

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 11/23

7:40 pm-11:53 am

2 stops24h 13m

Ontario

Mon 12/14

10:47 am-7:00 pm

2 stops24h 13m

$807
Quickest round-trip

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Fri 6/26

10:25 am-10:41 pm

2 stops20h 16m

Ontario

Sun 7/12

7:05 am-9:25 am

2 stops18h 20m

$856

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 6/16

11:30 am-11:59 pm

2 stops20h 29m

Ontario

Wed 7/22

10:25 am-8:00 pm

2 stops25h 35m

$916

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 6/9

9:15 am-11:05 pm

2 stops21h 50m

Ontario

Mon 6/22

9:36 pm-7:05 am

2 stops25h 29m

$926

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 6/15

8:40 pm-11:59 pm

2 stops35h 19m

Ontario

Tue 7/21

2:15 pm-8:00 pm

2 stops21h 45m

$928

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 6/9

9:15 am-11:05 pm

2 stops21h 50m

Ontario

Mon 6/15

12:55 am-7:05 am

2 stops22h 10m

$932

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 6/16

11:30 am-11:59 pm

2 stops20h 29m

Ontario

Wed 7/22

10:25 am-8:00 pm

2 stops25h 35m

$934

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 6/15

8:40 pm-11:59 pm

2 stops35h 19m

Ontario

Wed 7/22

10:25 am-8:00 pm

2 stops25h 35m

$945

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 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 and Delta 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

18h 47m

Direct flights

None
The fastest flight from London Gatwick Airport to Ontario takes 18h 47m
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 18h 47m.

  • 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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