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Cheap flights from California to the United Kingdom from £211

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 16/2. 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

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Virgin Atlantic Logo
22:30 - 16:50
LAX
-
LHR
10h 20mdirect
Virgin Atlantic Logo
06:30 - 12:45
LHR
-
LAX
13h 15m
1 stop
£438Virgin Atlantic
Thu, 5 Mar - Wed, 18 Mar
SWISS Logo
19:25 - 17:50
SFO
-
LGW
14h 25m
1 stop
SWISS Logo
18:40 - 17:30
LGW
-
SFO
29h 50m
1 stop
£438SWISS
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
14:30 - 11:20
SFO
-
LHR
13h 50m
1 stop
Multiple Airlines Logo
06:30 - 13:40
LHR
-
SFO
14h 10m
1 stop
£438Multiple Airlines
Thu, 19 Mar - Tue, 24 Mar
TAP AIR PORTUGAL Logo
20:20 - 09:45
SFO
-
LGW
29h 25m
1 stop
TAP AIR PORTUGAL Logo
21:20 - 16:50
LGW
-
SFO
27h 30m
2 stops
£438TAP AIR PORTUGAL
Fri, 17 Apr - Thu, 7 May
Multiple Airlines Logo
18:55 - 00:05
LAX
-
STN
21h 10m
2 stops
Multiple Airlines Logo
20:40 - 15:40
STN
-
LAX
26h 00m
2 stops
£438Multiple Airlines
Thu, 5 Mar - Wed, 11 Mar
Scandinavian Airlines Logo
16:45 - 18:30
SFO
-
LHR
17h 45m
1 stop
Scandinavian Airlines Logo
18:40 - 14:40
LHR
-
SFO
28h 00m
1 stop
£439Scandinavian Airlines
Sun, 19 Apr - Fri, 24 Apr
TAP AIR PORTUGAL Logo
16:45 - 22:40
LAX
-
LHR
21h 55m
1 stop
TAP AIR PORTUGAL Logo
19:55 - 16:00
LHR
-
LAX
27h 05m
1 stop
£440TAP AIR PORTUGAL
Sat, 28 Feb - Fri, 13 Mar
Scandinavian Airlines Logo
16:40 - 18:30
SFO
-
LHR
17h 50m
1 stop
Scandinavian Airlines Logo
15:35 - 15:35
LHR
-
SFO
31h 00m
2 stops
£440Scandinavian Airlines
Sat, 7 Mar - Sat, 14 Mar
Aer Lingus Logo
17:20 - 14:25
SFO
-
LHR
13h 05m
1 stop
Aer Lingus Logo
08:50 - 15:35
LHR
-
SFO
14h 45m
1 stop
£441Aer Lingus
Wed, 25 Feb - Sat, 7 Mar
Aer Lingus Logo
20:10 - 20:20
LAX
-
LHR
16h 10m
1 stop
Aer Lingus Logo
09:50 - 18:25
LHR
-
LAX
16h 35m
1 stop
£443Aer Lingus
Sun, 29 Mar - Wed, 8 Apr

Aer Lingus flights from California to United Kingdom

Our best Aer Lingus deals on California to United Kingdom flight tickets
Aer Lingus
29 Mar
LAX20:10Los Angeles
16h 10m
1 stop
LHR20:20London Heathrow
8 Apr
LHR09:50London Heathrow
16h 35m
1 stop
LAX18:25Los Angeles
£443
Aer Lingus
8 Feb
SFO18:20San Francisco
13h 15m
1 stop
LHR15:35London Heathrow
10 Feb
LHR09:50London Heathrow
13h 45m
1 stop
SFO15:35San Francisco
£452

United Airlines flights from California to United Kingdom

Our best United Airlines deals on California to United Kingdom flight tickets
United Airlines
12 Mar
SFO13:50San Francisco
10h 35m
LHR07:25London Heathrow
21 Mar
LHR06:35London Heathrow
16h 15m
1 stop
SFO15:50San Francisco
£453
United Airlines
5 Mar
LAX19:00Los Angeles
10h 30m
LHR13:30London Heathrow
11 Mar
LHR06:35London Heathrow
16h 40m
1 stop
LAX16:15Los Angeles
£454
United Airlines
18 Feb
SFO17:25San Francisco
10h 35m
LHR12:00London Heathrow
27 Feb
LHR06:35London Heathrow
16h 15m
1 stop
SFO14:50San Francisco
£455

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 7 February 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

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 5/3

22:30-16:50

Nonstop10h 20m

London Heathrow

Wed 18/3

06:30-12:45

1 stop13h 15m

£438

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Thu 5/3

19:25-17:50

1 stop14h 25m

London Gatwick

Thu 12/3

18:40-17:30

1 stop29h 50m

£438

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 19/3

14:30-11:20

1 stop13h 50m

London Heathrow

Tue 24/3

06:30-13:40

1 stop14h 10m

£438

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Fri 17/4

20:20-09:45

1 stop29h 25m

London Gatwick

Thu 7/5

21:20-16:50

2 stops27h 30m

£438

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

Thu 5/3

18:55-00:05

2 stops21h 10m

London Stansted

Wed 11/3

20:40-15:40

2 stops26h 00m

£438

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 19/4

16:45-18:30

1 stop17h 45m

London Heathrow

Fri 24/4

18:40-14:40

1 stop28h 00m

£439

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sat 28/2

16:45-22:40

1 stop21h 55m

London Heathrow

Fri 13/3

19:55-16:00

1 stop27h 05m

£440

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 7/3

16:40-18:30

1 stop17h 50m

London Heathrow

Sat 14/3

15:35-15:35

2 stops31h 00m

£440

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 25/2

17:20-14:25

1 stop13h 05m

London Heathrow

Sat 7/3

08:50-15:35

1 stop14h 45m

£441

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 29/3

20:10-20:20

1 stop16h 10m

London Heathrow

Wed 8/4

09:50-18:25

1 stop16h 35m

£443

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 £435, 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 £438.

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 £492. 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 £583.

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 £503. Try not to purchase tickets at midday because they tend to be around £633. 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 Heathrow 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 £564 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 £521 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

£201

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 £201. The best return flight deal from California to United Kingdom found on momondo in the last 72 hours is £372.
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 £234Free CancellationRating
7.1
2,135 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom £314Free CancellationRating
6.8
7,769 reviews
Search Lufthansa flights
KLMPriceFrom £359Free CancellationRating
7.7
1,450 reviews
Search KLM flights
Virgin AtlanticPriceFrom £363Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
Aer LingusPriceFrom £371Free CancellationRating
7.2
1,445 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £381Free CancellationRating
6.7
7,719 reviews
Search British Airways flights
Air FrancePriceFrom £388Free CancellationRating
7.4
1,531 reviews
Search Air France flights
United AirlinesPriceFrom £390Free CancellationRating
7.4
9,246 reviews
Search United Airlines flights
FinnairPriceFrom £398Free CancellationRating
7.6
1,357 reviews
Search Finnair flights
IberiaPriceFrom £419Free CancellationRating
7.0
3,106 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
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