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Cheap flights from California to the United Kingdom from $164

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to the United Kingdom departing on 9/30. 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 California to the United Kingdom

Cheap round-trip flights

Norse Atlantic UK Logo
4:25 pm - 10:50 amLAX-LGW
10h 25mnonstop
Norse Atlantic UK Logo
10:55 am - 2:10 pmLGW-LAX
11h 15mnonstop
$390Norse Atlantic UK
Find Deal
Sat, Sep 6 - Fri, Sep 26
Norse Atlantic UK Logo
4:30 pm - 10:55 amLAX-LGW
10h 25mnonstop
Norse Atlantic UK Logo
10:55 am - 2:10 pmLGW-LAX
11h 15mnonstop
$395Norse Atlantic UK
Find Deal
Wed, Sep 17 - Wed, Sep 24
SWISS Logo
11:25 am - 4:25 pmLAX-LHR
21h 00m2 stops
SWISS Logo
5:15 pm - 4:30 pmLHR-LAX
31h 15m2 stops
$410SWISS
Find Deal
Tue, Sep 16 - Tue, Oct 7
TAP AIR PORTUGAL Logo
4:35 pm - 9:35 pmSFO-LHR
21h 00m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 2:45 pmLHR-SFO
16h 45m1 stop
$420TAP AIR PORTUGAL
Find Deal
Mon, Nov 3 - Sat, Nov 22
TAP AIR PORTUGAL Logo
5:45 pm - 9:35 pmLAX-LHR
20h 50m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 3:00 pmLHR-LAX
17h 00m1 stop
$423TAP AIR PORTUGAL
Find Deal
Tue, Oct 28 - Tue, Nov 4
Air Canada Logo
8:05 am - 6:30 amLAX-LHR
14h 25m1 stop
Air Canada Logo
2:05 pm - 9:35 pmLHR-LAX
15h 30m1 stop
$425Air Canada
Find Deal
Tue, Sep 9 - Tue, Sep 30
Scandinavian Airlines Logo
4:40 pm - 4:00 pmSFO-LHR
15h 20m1 stop
Scandinavian Airlines Logo
1:55 pm - 2:35 pmLHR-SFO
32h 40m2 stops
$433Scandinavian Airlines
Find Deal
Fri, Nov 14 - Sun, Nov 16
Air Canada Logo
7:10 am - 9:35 amSFO-LHR
18h 25m2 stops
Air Canada Logo
10:15 am - 11:09 pmLHR-SFO
20h 54m2 stops
$481Air Canada
Find Deal
Wed, Oct 8 - Thu, Oct 23
Scandinavian Airlines Logo
7:40 pm - 8:55 amSFO-LHR
29h 15m2 stops
Scandinavian Airlines Logo
6:40 am - 4:30 pmLHR-SFO
17h 50m1 stop
$484Scandinavian Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
SWISS Logo
7:30 pm - 5:50 pmSFO-LGW
14h 20m1 stop
SWISS Logo
6:35 pm - 4:10 pmLGW-SFO
29h 35m1 stop
$495SWISS
Find Deal
Tue, Sep 9 - Tue, Sep 23

SWISS flights from California to United Kingdom

Our best SWISS deals on California to United Kingdom flight tickets
SWISS
Sep 16
LAX11:25 amLos Angeles
21h 00m
2 stops
LHR4:25 pmLondon Heathrow
Oct 7
LHR5:15 pmLondon Heathrow
31h 15m
2 stops
LAX4:30 pmLos Angeles
$410
Find similar
SWISS
Aug 12
SFO7:40 pmSan Francisco
38h 15m
2 stops
LGW5:55 pmLondon Gatwick
Aug 19
LGW6:35 pmLondon Gatwick
29h 35m
1 stop
SFO4:10 pmSan Francisco
$488
Find similar
SWISS
Aug 11
SFO7:40 pmSan Francisco
14h 10m
1 stop
LGW5:50 pmLondon Gatwick
Aug 26
LGW6:35 pmLondon Gatwick
29h 35m
1 stop
SFO4:10 pmSan Francisco
$494
Find similar

Air Canada flights from California to United Kingdom

Our best Air Canada deals on California to United Kingdom flight tickets
Air Canada
Sep 9
LAX8:05 amLos Angeles
14h 25m
1 stop
LHR6:30 amLondon Heathrow
Sep 30
LHR2:05 pmLondon Heathrow
15h 30m
1 stop
LAX9:35 pmLos Angeles
$425
Find similar
Air Canada
Aug 10
SFO8:20 amSan Francisco
17h 40m
1 stop
LHR10:00 amLondon Heathrow
Aug 26
LHR2:05 pmLondon Heathrow
15h 35m
1 stop
SFO9:40 pmSan Francisco
$437
Find similar
Air Canada
Aug 11
SFO11:40 amSan Francisco
14h 20m
1 stop
LHR10:00 amLondon Heathrow
Aug 26
LHR2:05 pmLondon Heathrow
15h 35m
1 stop
SFO9:40 pmSan Francisco
$439
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from California to United Kingdom 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 August 5, 2025.
Use the filters below to find and compare flights from California to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sat 9/6

4:25 pm-10:50 am

Nonstop10h 25m

London Gatwick

Fri 9/26

10:55 am-2:10 pm

Nonstop11h 15m

$390

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Wed 9/17

4:30 pm-10:55 am

Nonstop10h 25m

London Gatwick

Wed 9/24

10:55 am-2:10 pm

Nonstop11h 15m

$395

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 9/16

11:25 am-4:25 pm

2 stops21h 00m

London Heathrow

Tue 10/7

5:15 pm-4:30 pm

2 stops31h 15m

$410

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 11/3

4:35 pm-9:35 pm

1 stop21h 00m

London Heathrow

Sat 11/22

6:00 am-2:45 pm

1 stop16h 45m

$420

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 10/28

5:45 pm-9:35 pm

1 stop20h 50m

London Heathrow

Tue 11/4

6:00 am-3:00 pm

1 stop17h 00m

$423

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 9/9

8:05 am-6:30 am

1 stop14h 25m

London Heathrow

Tue 9/30

2:05 pm-9:35 pm

1 stop15h 30m

$425

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Fri 11/14

4:40 pm-4:00 pm

1 stop15h 20m

London Heathrow

Sun 11/16

1:55 pm-2:35 pm

2 stops32h 40m

$433

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 10/8

7:10 am-9:35 am

2 stops18h 25m

London Heathrow

Thu 10/23

10:15 am-11:09 pm

2 stops20h 54m

$481

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Fri 10/17

7:40 pm-8:55 am

2 stops29h 15m

London Heathrow

Mon 10/20

6:40 am-4:30 pm

1 stop17h 50m

$484

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Tue 9/9

7:30 pm-5:50 pm

1 stop14h 20m

London Gatwick

Tue 9/23

6:35 pm-4:10 pm

1 stop29h 35m

$495

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 the United Kingdom from

How to get the cheapest flight ticket from California to United Kingdom

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 United Kingdom?

In general, October is the cheapest month to fly from California to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $625. If you aren’t able to travel to United Kingdom during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $636.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from California to United Kingdom is on a Wednesday when prices can be found for as low as $765. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $885.

What is the cheapest time of day to depart on your flight to United Kingdom?

According to our data, the cheapest time of day to fly to United Kingdom is in the afternoon. momondo users have found flights departing from California to United Kingdom in the afternoon for as low as $783. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the morning, with an average ticket price of $849. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest California to United Kingdom flight route?

Fly from Los Angeles to London Gatwick for the best California - United Kingdom flight prices

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from California when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $778 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from California for as low as $706 on momondo.

What cabin class options are available on California to United Kingdom flights?

There are 4 cabin classes available to choose from on California to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

No. A direct flight is the cheapest option for a flight between California to United Kingdom.

Cheap California to United Kingdom flight deals and tips

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

Best Price Found

$164

Fastest flight time

10h 20m

Direct flights

Every day

Airports in United Kingdom

2 airports
The best one-way flight to United Kingdom from California in the past 72 hours is $164. The best round-trip flight deal from California to United Kingdom found on momondo in the last 72 hours is $390.
The fastest flight from California to United Kingdom takes 10h 20m
Direct flights go from California to United Kingdom every day.
There are 2 airports near United Kingdom: London Heathrow (LHR), London Gatwick (LGW)
Search flight deals

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

    Prices for flights from California to United Kingdom are updated daily.

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

  • How old do you have to be to fly from California to United Kingdom?

    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 California to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

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

  • What is the most popular plane model from California to United Kingdom?

Best airlines flying from California to United Kingdom

Compare and see reviews for airlines that fly from California to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $195Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
WestJetPriceFrom $272Free CancellationRating
7.2
2,997 reviews
Search WestJet flights
Scandinavian AirlinesPriceFrom $336Free CancellationRating
7.4
1,462 reviews
Search Scandinavian Airlines flights
SWISSPriceFrom $336Free CancellationRating
7.6
1,689 reviews
Search SWISS flights
Norse Atlantic UKPriceFrom $359Free CancellationRating
7.2
47 reviews
Search Norse Atlantic UK flights
TAP AIR PORTUGALPriceFrom $375Free CancellationRating
7.1
1,942 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $416Free CancellationRating
6.8
7,287 reviews
Search Lufthansa flights
Aer LingusPriceFrom $476Free CancellationRating
7.1
1,197 reviews
Search Aer Lingus flights
FinnairPriceFrom $538Free CancellationRating
7.6
1,319 reviews
Search Finnair flights
American AirlinesPriceFrom $546Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

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

Finding the right flight to United Kingdom from California is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.

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

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

How can momondo help me find flights from California to United Kingdom?

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 United Kingdom from California.

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

Yes momondo offers price alerts on flights to United Kingdom from California. 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.

An easier way to manage your United Kingdom trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom $337
Flights to Manchesterfrom $358
Flights to Edinburghfrom $431
Flights to Birminghamfrom $444
Flights to Glasgowfrom $417
Flights to Belfastfrom $498
Flights to Newcastle upon Tynefrom $476
Flights to Bristolfrom $473
Flights to Invernessfrom $401
Flights to Liverpoolfrom $424
Flights to Aberdeenfrom $484
Flights to Leedsfrom $469