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Cheap flights from California to the United Kingdom from £166

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 4/12. 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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Cheap return flights

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Multiple Airlines Logo
19:10 - 23:10LAX-STN
20h 00m2 stops
Multiple Airlines Logo
06:25 - 22:15STN-LAX
23h 50m2 stops
£443Multiple Airlines
Find Deal
Tue, 18 Nov - Sun, 23 Nov
Multiple Airlines Logo
19:30 - 22:00LAX-LTN
18h 30m2 stops
Multiple Airlines Logo
13:05 - 17:00LTN-LAX
35h 55m2 stops
£443Multiple Airlines
Find Deal
Sun, 7 Dec - Fri, 12 Dec
TAP AIR PORTUGAL Logo
16:35 - 15:45SFO-LGW
15h 10m1 stop
TAP AIR PORTUGAL Logo
21:25 - 14:35LGW-SFO
25h 10m2 stops
£449TAP AIR PORTUGAL
Find Deal
Mon, 1 Dec - Sun, 7 Dec
Scandinavian Airlines Logo
16:40 - 18:30SFO-LHR
17h 50m2 stops
Scandinavian Airlines Logo
06:40 - 14:35LHR-SFO
15h 55m1 stop
£449Scandinavian Airlines
Find Deal
Fri, 30 Jan - Mon, 2 Feb
Iberia Logo
06:00 - 10:50SFO-LGW
20h 50m2 stops
Iberia Logo
11:45 - 00:47LGW-SFO
21h 02m2 stops
£450Iberia
Find Deal
Tue, 20 Jan - Tue, 27 Jan
TAP AIR PORTUGAL Logo
19:55 - 21:35LAX-LHR
18h 40m1 stop
TAP AIR PORTUGAL Logo
06:00 - 16:00LHR-LAX
17h 00m1 stop
£450TAP AIR PORTUGAL
Find Deal
Thu, 12 Mar - Sat, 21 Mar
SWISS Logo
19:25 - 17:50SFO-LGW
14h 25m1 stop
SWISS Logo
18:40 - 16:30LGW-SFO
29h 50m1 stop
£450SWISS
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Wed, 3 Dec - Wed, 10 Dec
SWISS Logo
19:25 - 17:50SFO-LGW
14h 25m1 stop
SWISS Logo
18:40 - 16:30LGW-SFO
29h 50m1 stop
£453SWISS
Find Deal
Wed, 3 Dec - Wed, 10 Dec
Scandinavian Airlines Logo
19:30 - 16:25LAX-LHR
36h 55m2 stops
Scandinavian Airlines Logo
19:50 - 18:00LHR-LAX
29h 10m2 stops
£453Scandinavian Airlines
Find Deal
Thu, 5 Mar - Wed, 11 Mar
Iberia Logo
21:00 - 15:30LAX-LHR
10h 30mdirect
Iberia Logo
10:05 - 13:30LHR-LAX
11h 25mdirect
£470Iberia
Find Deal
Wed, 11 Feb - Wed, 18 Feb

Scandinavian Airlines flights from California to United Kingdom

Our best Scandinavian Airlines deals on California to United Kingdom flight tickets
Scandinavian Airlines
30 Jan
SFO16:40San Francisco
17h 50m
2 stops
LHR18:30London Heathrow
2 Feb
LHR06:40London Heathrow
15h 55m
1 stop
SFO14:35San Francisco
£449
Find similar
Scandinavian Airlines
15 Nov
SFO16:40San Francisco
15h 20m
1 stop
LHR16:00London Heathrow
21 Nov
LHR21:05London Heathrow
25h 30m
2 stops
SFO14:35San Francisco
£451
Find similar
Scandinavian Airlines
5 Mar
LAX19:30Los Angeles
36h 55m
2 stops
LHR16:25London Heathrow
11 Mar
LHR19:50London Heathrow
29h 10m
2 stops
LAX18:00Los Angeles
£453
Find similar

KLM flights from California to United Kingdom

Our best KLM deals on California to United Kingdom flight tickets
KLM
3 Feb
SFO13:20San Francisco
12h 40m
1 stop
LHR10:00London Heathrow
13 Feb
LHR06:30London Heathrow
13h 20m
1 stop
SFO11:50San Francisco
£452
Find similar
KLM
3 Dec
LAX14:15Los Angeles
13h 25m
1 stop
LHR11:40London Heathrow
7 Dec
LHR06:30London Heathrow
13h 15m
1 stop
LAX11:45Los Angeles
£460
Find similar
KLM
12 Nov
LAX11:37Los Angeles
13h 08m
1 stop
LHR08:45London Heathrow
18 Nov
LHR13:00London Heathrow
15h 39m
1 stop
LAX20:39Los Angeles
£480
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 6 November 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 - STN

LAXSTN

Los Angeles

Tue 18/11

19:10-23:10

2 stops20h 00m

London Stansted

Sun 23/11

06:25-22:15

2 stops23h 50m

£443

Los AngelesLondon

LAX - LTN

LAXLTN

Los Angeles

Sun 7/12

19:30-22:00

2 stops18h 30m

London Luton

Fri 12/12

13:05-17:00

2 stops35h 55m

£443

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 1/12

16:35-15:45

1 stop15h 10m

London Gatwick

Sun 7/12

21:25-14:35

2 stops25h 10m

£449

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Fri 30/1

16:40-18:30

2 stops17h 50m

London Heathrow

Mon 2/2

06:40-14:35

1 stop15h 55m

£449

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Tue 20/1

06:00-10:50

2 stops20h 50m

London Gatwick

Tue 27/1

11:45-00:47

2 stops21h 02m

£450

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 12/3

19:55-21:35

1 stop18h 40m

London Heathrow

Sat 21/3

06:00-16:00

1 stop17h 00m

£450

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Wed 3/12

19:25-17:50

1 stop14h 25m

London Gatwick

Wed 10/12

18:40-16:30

1 stop29h 50m

£450

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Wed 3/12

19:25-17:50

1 stop14h 25m

London Gatwick

Wed 10/12

18:40-16:30

1 stop29h 50m

£453

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 5/3

19:30-16:25

2 stops36h 55m

London Heathrow

Wed 11/3

19:50-18:00

2 stops29h 10m

£453

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 11/2

21:00-15:30

Nonstop10h 30m

London Heathrow

Wed 18/2

10:05-13:30

Nonstop11h 25m

£470

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 £459, 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 £469.

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 Monday. Travellers who choose to depart for United Kingdom on a Monday will often find tickets for as low as £512. 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 £597.

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 £532. Try not to purchase tickets at midday because they tend to be around £674. 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 £599 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 £557 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

£185

Fastest flight time

10h 10m

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 £185. The best return flight deal from California to United Kingdom found on momondo in the last 72 hours is £491.
The fastest flight from California to United Kingdom takes 10h 10m
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 £313Free CancellationRating
7.4
1,560 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom £325Free CancellationRating
7.1
2,046 reviews
Search TAP AIR PORTUGAL flights
KLMPriceFrom £375Free CancellationRating
7.7
1,405 reviews
Search KLM flights
LufthansaPriceFrom £379Free CancellationRating
6.8
7,553 reviews
Search Lufthansa flights
Virgin AtlanticPriceFrom £379Free CancellationRating
7.5
671 reviews
Search Virgin Atlantic flights
Aer LingusPriceFrom £387Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £398Free CancellationRating
6.7
7,496 reviews
Search British Airways flights
Air FrancePriceFrom £405Free CancellationRating
7.4
1,482 reviews
Search Air France flights
United AirlinesPriceFrom £407Free CancellationRating
7.4
9,000 reviews
Search United Airlines flights
FinnairPriceFrom £416Free CancellationRating
7.6
1,335 reviews
Search Finnair 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 £34
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Flights to Aberdeenfrom £49
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Flights to Leedsfrom £52
Flights to Invernessfrom £37