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Cheap flights from California to the United Kingdom from £157

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 18/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from California to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
19:30 - 12:55
LAX
-
LHR
33h 25m
2 stops
Scandinavian Airlines Logo
06:40 - 17:00
LHR
-
LAX
18h 20m
1 stop
£511Scandinavian Airlines
Thu, 5 Nov - Sun, 8 Nov
Scandinavian Airlines Logo
19:30 - 09:35
LAX
-
LHR
30h 05m
2 stops
Scandinavian Airlines Logo
06:40 - 17:00
LHR
-
LAX
18h 20m
2 stops
£512Scandinavian Airlines
Sun, 8 Nov - Wed, 11 Nov
Multiple Airlines Logo
16:45 - 19:20
LAX
-
STN
18h 35m
2 stops
Multiple Airlines Logo
18:20 - 14:45
STN
-
LAX
28h 25m
2 stops
£513Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
16:45 - 19:10
LAX
-
LGW
18h 25m
2 stops
Multiple Airlines Logo
17:25 - 14:45
LGW
-
LAX
29h 20m
2 stops
£516Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
British Airways Logo
17:05 - 11:35
LAX
-
LHR
10h 30mdirect
British Airways Logo
10:05 - 13:30
LHR
-
LAX
11h 25mdirect
£528British Airways
Thu, 15 Oct - Tue, 1 Dec
British Airways Logo
15:45 - 10:15
LAX
-
LHR
10h 30mdirect
British Airways Logo
15:05 - 18:25
LHR
-
LAX
11h 20mdirect
£531British Airways
Thu, 8 Oct - Wed, 14 Oct
SWISS Logo
11:15 - 17:25
LAX
-
LCY
22h 10m
2 stops
SWISS Logo
09:15 - 16:30
LCY
-
LAX
15h 15m
1 stop
£586SWISS
Wed, 7 Oct - Fri, 9 Oct
TAP AIR PORTUGAL Logo
16:30 - 20:25
SFO
-
LGW
19h 55m
2 stops
TAP AIR PORTUGAL Logo
16:25 - 14:35
LGW
-
SFO
30h 10m
1 stop
£599TAP AIR PORTUGAL
Thu, 17 Sep - Tue, 22 Sep
TAP AIR PORTUGAL Logo
19:35 - 18:50
SFO
-
LHR
15h 15m
1 stop
TAP AIR PORTUGAL Logo
19:50 - 14:05
LHR
-
SFO
26h 15m
1 stop
£599TAP AIR PORTUGAL
Sat, 12 Sep - Sun, 27 Sep
SWISS Logo
19:25 - 17:05
SFO
-
LCY
13h 40m
1 stop
SWISS Logo
09:15 - 16:30
LCY
-
SFO
15h 15m
1 stop
£602SWISS
Mon, 23 Nov - Tue, 8 Dec

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Alaska Airlines flights from California to United Kingdom

Our best Alaska Airlines deals on California to United Kingdom flight tickets
Alaska Airlines
18 Aug
LAX15:25Los Angeles Los Angeles
15h 40m
1 stop
LHR15:05London Heathrow
28 Aug
LHR17:00London Heathrow
32h 32m
1 stop
LAX17:32Los Angeles Los Angeles
£541
Alaska Airlines
5 Aug
LAX16:25Los Angeles Los Angeles
14h 40m
1 stop
LHR15:05London Heathrow
19 Aug
LHR17:00London Heathrow
33h 46m
1 stop
LAX18:46Los Angeles Los Angeles
£543
Alaska Airlines
13 Jul
SFO09:00San Francisco
22h 05m
1 stop
LHR15:05London Heathrow
27 Jul
LHR17:00London Heathrow
24h 20m
1 stop
SFO09:20San Francisco
£631

British Airways flights from California to United Kingdom

Our best British Airways deals on California to United Kingdom flight tickets
British Airways
15 Oct
LAX17:05Los Angeles Los Angeles
10h 30m
LHR11:35London Heathrow
1 Dec
LHR10:05London Heathrow
11h 25m
LAX13:30Los Angeles Los Angeles
£528
British Airways
8 Oct
LAX15:45Los Angeles Los Angeles
10h 30m
LHR10:15London Heathrow
14 Oct
LHR15:05London Heathrow
11h 20m
LAX18:25Los Angeles Los Angeles
£531
British Airways
19 Oct
LAX21:00Los Angeles Los Angeles
10h 25m
LHR15:25London Heathrow
1 Nov
LHR10:05London Heathrow
11h 25m
LAX13:30Los Angeles Los Angeles
£531

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 30 June 2026.
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

Cheapest return flight

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles Los Angeles

Thu 5/11

19:30-12:55

2 stops33h 25m

London Heathrow

Sun 8/11

06:40-17:00

1 stop18h 20m

£511

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles Los Angeles

Sun 8/11

19:30-09:35

2 stops30h 05m

London Heathrow

Wed 11/11

06:40-17:00

2 stops18h 20m

£512

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles Los Angeles

Wed 9/9

16:45-19:20

2 stops18h 35m

London Stansted

Wed 16/9

18:20-14:45

2 stops28h 25m

£513

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles Los Angeles

Wed 9/9

16:45-19:10

2 stops18h 25m

London Gatwick

Wed 16/9

17:25-14:45

2 stops29h 20m

£516

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles Los Angeles

Thu 15/10

17:05-11:35

Nonstop10h 30m

London Heathrow

Tue 1/12

10:05-13:30

Nonstop11h 25m

£528
Fastest return journey

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles Los Angeles

Thu 8/10

15:45-10:15

Nonstop10h 30m

London Heathrow

Wed 14/10

15:05-18:25

Nonstop11h 20m

£531

Los AngelesLondon

LAX - LCY

LAXLCY

Los Angeles Los Angeles

Wed 7/10

11:15-17:25

2 stops22h 10m

London City

Fri 9/10

09:15-16:30

1 stop15h 15m

£586

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Thu 17/9

16:30-20:25

2 stops19h 55m

London Gatwick

Tue 22/9

16:25-14:35

1 stop30h 10m

£599

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 12/9

19:35-18:50

1 stop15h 15m

London Heathrow

Sun 27/9

19:50-14:05

1 stop26h 15m

£599

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Mon 23/11

19:25-17:05

1 stop13h 40m

London City

Tue 8/12

09:15-16:30

1 stop15h 15m

£602

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

The cheapest month to fly to United Kingdom from California is in January. Flight prices, which tend to average around £537, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of January, then departing from California during the month February is also very affordable. Most momondo users find prices during this month for around £540.

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. Travellers who choose to depart for United Kingdom on a Wednesday will often find tickets for as low as £573. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from California to United Kingdom for around £706.

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

The cheapest time of day to fly to United Kingdom is at midday when flights can be purchased for as low as £581. Try not to purchase tickets in the evening because they tend to be around £665. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 from California to the 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 £668 when searching weeks before you fly. 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 £614 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?

You could potentially save up to 13% on your flight if you consider stops on a California to United Kingdom flight.

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

£346

Fastest flight time

2h 34m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from California in the past 72 hours is £346. The best return flight deal from California to United Kingdom found on momondo in the last 72 hours is £698.
The fastest flight from California to United Kingdom takes 2h 34m
Direct flights go from California to United Kingdom every day.
There are 1,286 airports in United Kingdom. From California there are direct flights to London Heathrow (LHR).
Search flight deals

Frequently asked questions about flying from California to the United Kingdom

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

    Prices for flights from California to United Kingdom refresh 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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
TAP AIR PORTUGALPriceFrom £240Free CancellationRating
7.2
2,308 reviews
Search TAP AIR PORTUGAL flights
Virgin AtlanticPriceFrom £374Free CancellationRating
7.5
690 reviews
Search Virgin Atlantic flights
KLMPriceFrom £375Free CancellationRating
7.8
1,531 reviews
Search KLM flights
LufthansaPriceFrom £377Free CancellationRating
6.8
8,109 reviews
Search Lufthansa flights
Aer LingusPriceFrom £381Free CancellationRating
7.3
1,632 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £392Free CancellationRating
6.7
8,089 reviews
Search British Airways flights
United AirlinesPriceFrom £394Free CancellationRating
7.4
9,906 reviews
Search United Airlines flights
Air FrancePriceFrom £423Free CancellationRating
7.5
1,615 reviews
Search Air France flights
FinnairPriceFrom £444Free CancellationRating
7.6
1,415 reviews
Search Finnair flights
American AirlinesPriceFrom £558Free CancellationRating
7.1
11,764 reviews
Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to United Kingdom. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for California to United Kingdom flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from California to United Kingdom.

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

Yes. momondo can track prices for California to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
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