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Cheap flights from California to the United Kingdom from £131

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 12/10. 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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0 bags

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Cheap return flights

TAP AIR PORTUGAL Logo
17:45 - 21:35LAX-LHR
20h 50m1 stop
TAP AIR PORTUGAL Logo
06:00 - 16:00LHR-LAX
17h 00m1 stop
£369TAP AIR PORTUGAL
Find Deal
Thu, 30 Oct - Sat, 1 Nov
Norse Atlantic UK Logo
16:30 - 10:55LAX-LGW
10h 25mdirect
Norse Atlantic UK Logo
10:55 - 14:10LGW-LAX
11h 15mdirect
£369Norse Atlantic UK
Find Deal
Wed, 8 Oct - Wed, 22 Oct
Multiple Airlines Logo
08:30 - 16:15LAX-STN
23h 45m2 stops
Multiple Airlines Logo
20:25 - 16:35STN-LAX
28h 10m2 stops
£377Multiple Airlines
Find Deal
Sun, 9 Nov - Tue, 18 Nov
Multiple Airlines Logo
16:30 - 10:55LAX-LGW
10h 25mdirect
Multiple Airlines Logo
20:50 - 21:25LGW-LAX
32h 35m3 stops
£378Multiple Airlines
Find Deal
Wed, 15 Oct - Wed, 22 Oct
Scandinavian Airlines Logo
07:05 - 09:35SFO-LHR
18h 30m2 stops
Scandinavian Airlines Logo
06:40 - 16:10LHR-SFO
16h 30m1 stop
£389Scandinavian Airlines
Find Deal
Tue, 21 Oct - Tue, 28 Oct
Scandinavian Airlines Logo
20:55 - 21:40SFO-LHR
40h 45m2 stops
Scandinavian Airlines Logo
06:40 - 14:35LHR-SFO
15h 55m1 stop
£390Scandinavian Airlines
Find Deal
Mon, 10 Nov - Fri, 14 Nov
Aer Lingus Logo
20:15 - 16:50LAX-LHR
12h 35m1 stop
Aer Lingus Logo
12:10 - 18:30LHR-LAX
14h 20m1 stop
£398Aer Lingus
Find Deal
Sun, 16 Nov - Wed, 3 Dec
Finnair Logo
13:25 - 08:00LAX-LHR
10h 35mdirect
Finnair Logo
10:20 - 18:05LHR-LAX
14h 45m1 stop
£399Finnair
Find Deal
Tue, 7 Oct - Tue, 28 Oct
Finnair Logo
20:30 - 14:00LAX-LHR
10h 30mdirect
Finnair Logo
07:30 - 17:05LHR-LAX
17h 35m1 stop
£399Finnair
Find Deal
Sun, 26 Oct - Tue, 4 Nov
Aer Lingus Logo
20:15 - 18:55LAX-LHR
14h 40m1 stop
Aer Lingus Logo
09:50 - 18:25LHR-LAX
16h 35m1 stop
£400Aer Lingus
Find Deal
Wed, 1 Oct - Wed, 8 Oct

TAP AIR PORTUGAL flights from California to United Kingdom

Our best TAP AIR PORTUGAL deals on California to United Kingdom flight tickets
TAP AIR PORTUGAL
30 Oct
LAX17:45Los Angeles
20h 50m
1 stop
LHR21:35London Heathrow
1 Nov
LHR06:00London Heathrow
17h 00m
1 stop
LAX16:00Los Angeles
£369
Find similar
TAP AIR PORTUGAL
24 Oct
LAX16:40Los Angeles
21h 20m
1 stop
LHR22:00London Heathrow
31 Oct
LHR19:55London Heathrow
27h 05m
1 stop
LAX16:00Los Angeles
£370
Find similar
TAP AIR PORTUGAL
24 Oct
LAX16:40Los Angeles
17h 05m
1 stop
LHR17:45London Heathrow
31 Oct
LHR18:30London Heathrow
28h 30m
1 stop
LAX16:00Los Angeles
£371
Find similar

Aer Lingus flights from California to United Kingdom

Our best Aer Lingus deals on California to United Kingdom flight tickets
Aer Lingus
16 Nov
LAX20:15Los Angeles
12h 35m
1 stop
LHR16:50London Heathrow
3 Dec
LHR12:10London Heathrow
14h 20m
1 stop
LAX18:30Los Angeles
£398
Find similar
Aer Lingus
1 Oct
LAX20:15Los Angeles
14h 40m
1 stop
LHR18:55London Heathrow
8 Oct
LHR09:50London Heathrow
16h 35m
1 stop
LAX18:25Los Angeles
£400
Find similar
Aer Lingus
15 Oct
LAX20:15Los Angeles
15h 10m
1 stop
LHR19:25London Heathrow
21 Oct
LHR09:50London Heathrow
16h 35m
1 stop
LAX18:25Los Angeles
£401
Find similar

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 19 September 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 - LHR

LAXLHR

Los Angeles

Thu 30/10

17:45-21:35

1 stop20h 50m

London Heathrow

Sat 1/11

06:00-16:00

1 stop17h 00m

£369

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Wed 8/10

16:30-10:55

Nonstop10h 25m

London Gatwick

Wed 22/10

10:55-14:10

Nonstop11h 15m

£369

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

Sun 9/11

08:30-16:15

2 stops23h 45m

London Stansted

Tue 18/11

20:25-16:35

2 stops28h 10m

£377

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Wed 15/10

16:30-10:55

Nonstop10h 25m

London Gatwick

Wed 22/10

20:50-21:25

3 stops32h 35m

£378

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 21/10

07:05-09:35

2 stops18h 30m

London Heathrow

Tue 28/10

06:40-16:10

1 stop16h 30m

£389

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 10/11

20:55-21:40

2 stops40h 45m

London Heathrow

Fri 14/11

06:40-14:35

1 stop15h 55m

£390

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 16/11

20:15-16:50

1 stop12h 35m

London Heathrow

Wed 3/12

12:10-18:30

1 stop14h 20m

£398

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 7/10

13:25-08:00

Nonstop10h 35m

London Heathrow

Tue 28/10

10:20-18:05

1 stop14h 45m

£399

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 26/10

20:30-14:00

Nonstop10h 30m

London Heathrow

Tue 4/11

07:30-17:05

1 stop17h 35m

£399

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 1/10

20:15-18:55

1 stop14h 40m

London Heathrow

Wed 8/10

09:50-18:25

1 stop16h 35m

£400

Flights are sorted by cheapest return 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?

The cheapest month to fly to United Kingdom from California is in September. Flight prices, which tend to average around £444, 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 August is also very affordable. Most momondo users find prices during this month for around £450.

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 £506. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from California to United Kingdom for around £575.

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 £519. Try not to purchase tickets at midday because they tend to be around £683. 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 £572 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 £534 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

£178

Fastest flight time

9h 50m

Direct flights

Every day

Airports in United Kingdom

1 airport
The best one-way flight to United Kingdom from California in the past 72 hours is £178. The best return flight deal from California to United Kingdom found on momondo in the last 72 hours is £275.
The fastest flight from California to United Kingdom takes 9h 50m
Direct flights go from California to United Kingdom every day.
There is 1 airport near United Kingdom: 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
Scandinavian AirlinesPriceFrom £300Free CancellationRating
7.4
1,487 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom £315Free CancellationRating
6.8
7,415 reviews
Search Lufthansa flights
Virgin AtlanticPriceFrom £364Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
KLMPriceFrom £365Free CancellationRating
7.8
1,386 reviews
Search KLM flights
Norse Atlantic UKPriceFrom £368Free CancellationRating
7.1
49 reviews
Search Norse Atlantic UK flights
Aer LingusPriceFrom £371Free CancellationRating
7.2
1,281 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £382Free CancellationRating
6.7
7,373 reviews
Search British Airways flights
TAP AIR PORTUGALPriceFrom £386Free CancellationRating
7.1
1,978 reviews
Search TAP AIR PORTUGAL flights
Air FrancePriceFrom £388Free CancellationRating
7.4
1,468 reviews
Search Air France flights
United AirlinesPriceFrom £412Free CancellationRating
7.4
8,926 reviews
Search United 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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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 £30
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Flights to Birminghamfrom £33
Flights to Edinburghfrom £29
Flights to Belfastfrom £29
Flights to Glasgowfrom £32
Flights to Bristolfrom £30
Flights to Newcastle upon Tynefrom £52
Flights to Aberdeenfrom £49
Flights to Liverpoolfrom £30
Flights to Leedsfrom £36
Flights to Invernessfrom £38