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Cheap flights from California to the United Kingdom from £250

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 1/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap return flights

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TAP AIR PORTUGAL Logo
16:45 - 12:45
LAX
-
LHR
36h 00m
1 stop
TAP AIR PORTUGAL Logo
16:35 - 14:35
LHR
-
LAX
30h 00m
1 stop
£476TAP AIR PORTUGAL
Tue, 14 Apr - Thu, 30 Apr
TAP AIR PORTUGAL Logo
16:45 - 09:45
LAX
-
LGW
33h 00m
1 stop
TAP AIR PORTUGAL Logo
21:20 - 14:35
LGW
-
LAX
25h 15m
2 stops
£478TAP AIR PORTUGAL
Tue, 14 Apr - Thu, 14 May
Norse Atlantic UK Logo
16:30 - 10:55
LAX
-
LGW
10h 25mdirect
Norse Atlantic UK Logo
10:05 - 13:20
LGW
-
LAX
11h 15mdirect
£480Norse Atlantic UK
Mon, 24 Aug - Sat, 12 Sep
Norse Atlantic UK Logo
16:30 - 10:55
LAX
-
LGW
10h 25mdirect
Norse Atlantic UK Logo
10:05 - 13:20
LGW
-
LAX
11h 15mdirect
£481Norse Atlantic UK
Sun, 23 Aug - Mon, 31 Aug
Scandinavian Airlines Logo
16:45 - 18:30
SFO
-
LHR
17h 45m
1 stop
Scandinavian Airlines Logo
06:40 - 14:40
LHR
-
SFO
16h 00m
1 stop
£482Scandinavian Airlines
Mon, 11 May - Tue, 19 May
Multiple Airlines Logo
16:30 - 10:55
LAX
-
LGW
10h 25mdirect
Multiple Airlines Logo
09:25 - 16:30
LGW
-
LAX
15h 05m
1 stop
£482Multiple Airlines
Fri, 14 Aug - Fri, 18 Sep
Scandinavian Airlines Logo
16:45 - 16:00
SFO
-
LHR
15h 15m
1 stop
Scandinavian Airlines Logo
06:40 - 14:40
LHR
-
SFO
16h 00m
1 stop
£484Scandinavian Airlines
Mon, 11 May - Fri, 15 May
Multiple Airlines Logo
15:15 - 08:05
LAX
-
LGW
56h 50m
3 stops
Multiple Airlines Logo
10:05 - 13:20
LGW
-
LAX
11h 15mdirect
£491Multiple Airlines
Wed, 6 May - Sat, 6 Jun
Turkish Airlines Logo
18:45 - 09:55
SFO
-
STN
31h 10m
1 stop
Turkish Airlines Logo
17:45 - 16:40
STN
-
SFO
30h 55m
1 stop
£544Turkish Airlines
Mon, 13 Apr - Wed, 22 Apr
Turkish Airlines Logo
18:45 - 22:10
SFO
-
STN
19h 25m
1 stop
Turkish Airlines Logo
17:35 - 16:40
STN
-
SFO
31h 05m
1 stop
£545Turkish Airlines
Wed, 15 Apr - Thu, 23 Apr

Scandinavian Airlines flights from California to United Kingdom

Our best Scandinavian Airlines deals on California to United Kingdom flight tickets
Scandinavian Airlines
11 May
SFO16:45San Francisco
17h 45m
1 stop
LHR18:30London Heathrow
19 May
LHR06:40London Heathrow
16h 00m
1 stop
SFO14:40San Francisco
£482
Scandinavian Airlines
11 May
SFO16:45San Francisco
15h 15m
1 stop
LHR16:00London Heathrow
15 May
LHR06:40London Heathrow
16h 00m
1 stop
SFO14:40San Francisco
£484
Scandinavian Airlines
13 Apr
SFO16:45San Francisco
40h 15m
2 stops
LHR17:00London Heathrow
16 Apr
LHR17:00London Heathrow
29h 40m
1 stop
SFO14:40San Francisco
£485

British Airways flights from California to United Kingdom

Our best British Airways deals on California to United Kingdom flight tickets
British Airways
29 Apr
LAX15:40Los Angeles Los Angeles
10h 35m
LHR10:15London Heathrow
19 May
LHR15:05London Heathrow
11h 10m
LAX18:15Los Angeles Los Angeles
£513
British Airways
7 Apr
ONT10:59Ontario
13h 06m
1 stop
LHR08:05London Heathrow
16 Apr
LHR16:10London Heathrow
13h 49m
1 stop
ONT21:59Ontario
£636
British Airways
5 Apr
ONT10:56Ontario
13h 09m
1 stop
LHR08:05London Heathrow
21 Apr
LHR10:05London Heathrow
14h 17m
1 stop
ONT16:22Ontario
£638

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 27 March 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

Tue 14/4

16:45-12:45

1 stop36h 00m

London Heathrow

Thu 30/4

16:35-14:35

1 stop30h 00m

£476

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles Los Angeles

Tue 14/4

16:45-09:45

1 stop33h 00m

London Gatwick

Thu 14/5

21:20-14:35

2 stops25h 15m

£478
Fastest return journey

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles Los Angeles

Mon 24/8

16:30-10:55

Nonstop10h 25m

London Gatwick

Sat 12/9

10:05-13:20

Nonstop11h 15m

£480

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles Los Angeles

Sun 23/8

16:30-10:55

Nonstop10h 25m

London Gatwick

Mon 31/8

10:05-13:20

Nonstop11h 15m

£481

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 11/5

16:45-18:30

1 stop17h 45m

London Heathrow

Tue 19/5

06:40-14:40

1 stop16h 00m

£482

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles Los Angeles

Fri 14/8

16:30-10:55

Nonstop10h 25m

London Gatwick

Fri 18/9

09:25-16:30

1 stop15h 05m

£482

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 11/5

16:45-16:00

1 stop15h 15m

London Heathrow

Fri 15/5

06:40-14:40

1 stop16h 00m

£484

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles Los Angeles

Wed 6/5

15:15-08:05

3 stops56h 50m

London Gatwick

Sat 6/6

10:05-13:20

Nonstop11h 15m

£491

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 13/4

18:45-09:55

1 stop31h 10m

London Stansted

Wed 22/4

17:45-16:40

1 stop30h 55m

£544

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Wed 15/4

18:45-22:10

1 stop19h 25m

London Stansted

Thu 23/4

17:35-16:40

1 stop31h 05m

£545

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 September. Flight prices, which tend to average around £440, 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 September, then departing from California during the month October is also very affordable. Most momondo users find prices during this month for around £447.

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 £497. 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 £618.

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 in the afternoon when flights can be purchased for as low as £515. Try not to purchase tickets at midday because they tend to be around £646. 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 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 £574 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 £531 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

£163

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 £163. The best return flight deal from California to United Kingdom found on momondo in the last 72 hours is £500.
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

  • 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 £238Free CancellationRating
7.1
2,182 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom £321Free CancellationRating
6.8
7,871 reviews
Search Lufthansa flights
Virgin AtlanticPriceFrom £370Free CancellationRating
7.5
685 reviews
Search Virgin Atlantic flights
KLMPriceFrom £372Free CancellationRating
7.8
1,478 reviews
Search KLM flights
Aer LingusPriceFrom £378Free CancellationRating
7.2
1,491 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £389Free CancellationRating
6.7
7,822 reviews
Search British Airways flights
United AirlinesPriceFrom £398Free CancellationRating
7.4
9,493 reviews
Search United Airlines flights
FinnairPriceFrom £407Free CancellationRating
7.7
1,374 reviews
Search Finnair flights
Air FrancePriceFrom £420Free CancellationRating
7.4
1,553 reviews
Search Air France flights
IberiaPriceFrom £439Free CancellationRating
7.0
3,156 reviews
Search Iberia 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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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 £28
Flights to Manchesterfrom £32
Flights to Birminghamfrom £38
Flights to Edinburghfrom £27
Flights to Belfastfrom £26
Flights to Glasgowfrom £30
Flights to Bristolfrom £44
Flights to Newcastle upon Tynefrom £37
Flights to Liverpoolfrom £43
Flights to Aberdeenfrom £58
Flights to Leedsfrom £49
Flights to Invernessfrom £40