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Cheap flights from London to California from £375

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
28 Jun — 5 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to California

Enter your travel dates to find the best prices.

Cheapest flights from London to California
Explore the most affordable flight options available from London to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 May 2026.

Mon 5/1020:25
LHR
-
LAX
1 stop26h 50m
Lufthansa
Mon 19/1018:40
LAX
-
LHR
1 stop15h 00m
Lufthansa
Deal found 26/5£484
Fri 2/1007:45
LHR
-
LAX
1 stop20h 48m
Multiple Airlines
Sat 10/1007:30
LAX
-
LHR
1 stop20h 20m
Multiple Airlines
Deal found 25/5£484
Tue 27/1018:40
LGW
-
LAX
1 stop29h 55m
SWISS
Tue 10/1119:10
LAX
-
LGW
1 stop14h 40m
SWISS
Deal found 24/5£484
Tue 10/1109:15
LCY
-
LAX
1 stop15h 20m
SWISS
Tue 24/1119:10
LAX
-
LCY
1 stop13h 55m
SWISS
Deal found 26/5£485
Sun 15/1107:40
LHR
-
LAX
2 stops18h 21m
Lufthansa
Sun 29/1117:30
LAX
-
LHR
1 stop17h 05m
Lufthansa
Deal found 26/5£485
Tue 8/909:25
LGW
-
LAX
1 stop15h 05m
SWISS
Tue 15/919:35
LAX
-
LGW
1 stop28h 50m
SWISS
Deal found 25/5£485
Sat 5/907:30
LHR
-
LAX
2 stops21h 04m
Lufthansa
Sat 12/908:15
LAX
-
LHR
1 stop16h 15m
Lufthansa
Deal found 26/5£486
Thu 12/1118:40
LGW
-
LAX
1 stop29h 55m
SWISS
Mon 30/1119:10
LAX
-
LGW
1 stop14h 40m
SWISS
Deal found 26/5£486
Thu 24/909:30
LHR
-
LAX
2 stops19h 56m
Multiple Airlines
Thu 8/1014:35
LAX
-
LHR
1 stop14h 45m
Multiple Airlines
Deal found 26/5£487
Mon 21/918:35
LGW
-
LAX
1 stop29h 55m
SWISS
Mon 5/1019:35
LAX
-
LGW
1 stop28h 50m
SWISS
Deal found 26/5£487
Tue 1/909:30
LHR
-
LAX
1 stop14h 50m
Multiple Airlines
Wed 30/908:15
LAX
-
LHR
1 stop14h 15m
Multiple Airlines
Deal found 24/5£487
Thu 10/918:35
LGW
-
LAX
1 stop29h 55m
SWISS
Thu 24/919:35
LAX
-
LGW
1 stop28h 50m
SWISS
Deal found 26/5£487

Find flight deals from London to California

Keep the following information in mind while searching for London to California flight deals. Data was last updated 29 May 2026.

Round-trip from

£484

One-way from

£375

Popular in

December

Cheapest in

September

Average price

£479

Good round-trip deal

£508 or less

Good one-way deal

£293 or less
Lufthansa
  • Lufthansa
  • 5/10-19/10
  • 2 total stops
  • 41h 50m total
  • London to California
Search Deals
United Airlines
  • United Airlines
  • 1/9
  • 2 total stops
  • 19h 16m total
  • London to California
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from London (LON) to California.
Search Deals
Price to beat on a one-way flight from London (LON) to California.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to California 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, Cheapflights users made 858,174 searches. Data last updated 29 May 2026.
Use the filters below to find and compare flights from London to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 4/10

06:00-13:05

1 stop15h 05m

Los Angeles

Wed 14/10

15:40-10:10

Nonstop10h 30m

£508

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 16/9

13:05-16:25

Nonstop11h 20m

Los Angeles

Sun 27/9

15:40-10:10

Nonstop10h 30m

£509

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 11/9

10:35-18:11

1 stop15h 36m

Ontario

Mon 21/9

13:18-09:40

1 stop12h 22m

£512

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 17/9

14:10-22:49

1 stop16h 39m

Ontario

Fri 25/9

13:18-09:40

1 stop12h 22m

£513

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 6/9

13:40-21:59

1 stop16h 19m

Ontario

Mon 14/9

13:18-09:40

1 stop12h 22m

£513

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 11/9

11:25-20:53

1 stop17h 28m

Ontario

Thu 24/9

13:18-09:40

1 stop12h 22m

£513

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 22/11

21:05-17:00

2 stops27h 55m

Los Angeles

Sat 28/11

19:30-09:35

2 stops30h 05m

£533

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 5/8

09:15-21:11

1 stop19h 56m

Ontario

Thu 13/8

07:06-06:20

1 stop15h 14m

£538

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Tue 27/10

15:00-23:06

1 stop15h 06m

Ontario

Mon 9/11

14:59-12:00

1 stop13h 01m

£538

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 25/11

10:15-18:22

1 stop16h 07m

Ontario

Thu 3/12

16:47-13:15

1 stop12h 28m

£546

Flights are sorted by cheapest return flights first.

Deals found on 27/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from London to California

Have a flexible travel schedule? Discover the best time to fly to California from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to California

What is the cheapest month to book a flight from London to California?

Currently, September is the cheapest month in which you can book a flight from London to California (average of £420). Flying from London to California in December is currently the most expensive (average of £593). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to CA?

Find hourly flight availability from London to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 May 2026.

When flying from London to California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London to California

Explore weekly flight availability from London to California. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 29 May 2026.

The most flights from LON to USCA are scheduled on a Wednesday (53 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (35 on average).

How much does it cost for a return flight from London to California?

How far ahead should I book a flight from London to California?

The best time to book flights from London to California is 78 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated 29 May 2026.
Check out reviews from past customers who have flown with Virgin Atlantic,United Airlines, andNorse Atlantic UK from London to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Food

6.9

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
689 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Food

6.9

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
9,764 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Food

6.9

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Norse Atlantic UK
7.2
Good
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Food

6.9

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Lufthansa
6.8
Okay
8,035 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Food

6.9

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,010 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Food

6.9

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

Find useful and relevant information for your journey from London to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to California?

    Austrian Airlines, United Airlines, and Scandinavian Airlines can get you from London to California in just under 11h 20m. Your travel time can differ by up to 16h 35m. London and California are separated by a distance of 5439 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London to California one-way?

    The cheapet airlines for a one-way flight from London to California are WestJet (£170), Norse Atlantic UK (£190), and TAP AIR PORTUGAL (£245).

  • What are the most popular routes from London to California?

    The most popular flight routes from London to California are London Heathrow - Los Angeles, London Heathrow - San Francisco and London Heathrow - Las Vegas Harry Reid Intl.

  • What are the most reliable airlines from London to California?

    No one likes to see their flight delayed. When booking a flight from London to California consider choosing KLM (86%), Air France (86%) or Delta (86%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London to California?

    The cheapest flight price from London to California is £433. On average you can expect to pay £2,185. The most popular route, (London Heathrow - Los Angeles), can usually be booked for £380.

  • Can I find deals for flights from London to California that include hotel bookings?

    Yes. In addition to deals on London to California flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to California?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to California.

  • Can I find deals for business class flights from London to California?

    Yes. Cheapflights offers flight deals from London to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to California?

    Currently, September is the cheapest month in which you can book a flight from London to California (average of £420). Flying from London to California in December is currently the most expensive (average of £593). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to California

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
Heathrow to LaGuardia flights
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Heathrow to Los Angeles flights
Heathrow to Orlando flights
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Heathrow to San Francisco flights
London City to Newark flights
Heathrow to Dulles Intl flights
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Heathrow to O'Hare Intl flights
Heathrow to Dallas/Fort Worth flights
Heathrow to Hobby flights
Manchester to Orlando flights
Gatwick to Orlando flights
Heathrow to Baltimore flights
Heathrow to Las Vegas flights
Stansted to LaGuardia flights
Gatwick to Los Angeles flights
Heathrow to Seattle flights
Heathrow to Atlanta flights
Stansted to Los Angeles flights
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Heathrow to George Bush Intcntl flights
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Gatwick to Miami flights
London City to Boston flights
Stansted to Boston flights
Heathrow to Austin flights
Stansted to Miami flights
Gatwick to San Francisco flights
London City to Miami flights
Manchester to Newark flights
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London City to San Francisco flights
Stansted to San Francisco flights
London City to Orlando flights
Gatwick to Dulles Intl flights
Heathrow to Ontario flights
Heathrow to Denver flights

Top 10 airlines flying from London to California

Discover the top 10 airlines that operate flights from London to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£238Average£537FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Norse Atlantic UKCheapest£256Average£475FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
SWISSCheapest£297Average£442FlexibilityNo cancel feeOn-time79%
Search SWISS flights
DeltaCheapest£321Average£586FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£321Average£453FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Aer LingusCheapest£333Average£668FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£335Average£480FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£344Average£589FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£346Average£481FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£350Average£491FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to California?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to California from London today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from London to California?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to California from London.

Can Cheapflights find flights from London to California with no change fees?

Need flexible booking options for your flight to California from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to California become cheaper?

Yes, Cheapflights offers price alerts on London to California flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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