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Cheap flights from London to California from £349

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
3 Jul — 10 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 3 June 2026.

Thu 25/615:00
LHR
-
ONT
1 stop15h 36m
British Airways
Mon 6/714:15
ONT
-
LHR
1 stop14h 35m
British Airways
Deal found 3/6£452
Wed 28/1015:00
LHR
-
ONT
1 stop15h 06m
British Airways
Sat 7/1114:59
ONT
-
LHR
1 stop13h 01m
British Airways
Deal found 3/6£473
Thu 11/616:25
LHR
-
ONT
1 stop15h 34m
American Airlines
Thu 9/710:25
ONT
-
LHR
1 stop14h 35m
American Airlines
Deal found 3/6£490
Wed 10/615:00
LHR
-
ONT
1 stop15h 36m
British Airways
Tue 7/714:15
ONT
-
LHR
1 stop16h 10m
British Airways
Deal found 3/6£493
Fri 19/618:55
LHR
-
ONT
2 stops29h 46m
Virgin Atlantic
Fri 3/713:00
ONT
-
LHR
2 stops16h 05m
Virgin Atlantic
Deal found 3/6£494
Sat 29/808:55
LHR
-
ONT
1 stop18h 03m
Iberia
Sat 5/910:29
ONT
-
LHR
1 stop14h 31m
Iberia
Deal found 3/6£495
Thu 8/1010:20
LHR
-
LAX
1 stop14h 50m
Finnair
Thu 22/1018:50
LAX
-
LHR
1 stop17h 50m
Finnair
Deal found 1/6£496
Sat 22/812:55
LHR
-
LAX
1 stop15h 05m
British Airways
Sat 12/911:38
LAX
-
LHR
1 stop13h 27m
British Airways
Deal found 1/6£497
Fri 3/706:15
LHR
-
LAX
1 stop17h 50m
American Airlines
Fri 10/714:00
LAX
-
LHR
1 stop13h 00m
American Airlines
Deal found 2/6£498
Sun 5/714:30
LGW
-
LAX
1 stop26h 55m
American Airlines
Sun 12/708:00
LAX
-
LGW
2 stops18h 40m
American Airlines
Deal found 2/6£498
Fri 11/915:30
LCY
-
LAX
2 stops50h 19m
British Airways
Sun 27/917:50
LAX
-
LCY
1 stop31h 20m
British Airways
Deal found 3/6£498
Sat 5/914:45
LHR
-
LAX
1 stop14h 41m
British Airways
Sat 12/911:38
LAX
-
LHR
1 stop13h 27m
British Airways
Deal found 2/6£498

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 3 June 2026.

Round-trip from

£452

One-way from

£349

Popular in

December

Cheapest in

September

Average price

£498

Good round-trip deal

£516 or less

Good one-way deal

£293 or less
British Airways
  • British Airways
  • 25/6-6/7
  • 2 total stops
  • 30h 11m total
  • London to California
Search Deals
British Airways
  • British Airways
  • 26/8
  • 1 total stop
  • 15h 15m total
  • London to California
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 3 June 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

Sat 22/8

12:55-20:00

1 stop15h 05m

Los Angeles Los Angeles

Sat 12/9

11:38-09:05

1 stop13h 27m

£497

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 7/9

10:30-17:46

1 stop15h 16m

Los Angeles Los Angeles

Mon 21/9

11:38-09:05

1 stop13h 27m

£499

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 15/7

08:55-22:32

1 stop21h 37m

Ontario

Sun 26/7

23:59-06:20

1 stop22h 21m

£539

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 20/11

07:30-21:21

2 stops21h 51m

Ontario

Thu 3/12

05:00-05:55

2 stops16h 55m

£548

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Tue 14/7

11:30-22:52

2 stops19h 22m

Ontario

Fri 14/8

06:00-06:20

2 stops16h 20m

£562

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 15/6

08:20-11:30

Nonstop11h 10m

Los Angeles Los Angeles

Mon 29/6

18:05-12:45

Nonstop10h 40m

£562

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 29/6

17:55-10:40

2 stops24h 45m

Ontario

Wed 5/8

11:45-15:35

1 stop19h 50m

£566

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 5/11

14:45-22:54

1 stop16h 09m

Ontario

Mon 9/11

12:00-12:20

1 stop16h 20m

£568

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 6/8

14:25-22:59

1 stop16h 34m

Ontario

Thu 20/8

07:06-06:20

1 stop15h 14m

£568

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 20/9

13:40-21:59

1 stop16h 19m

Ontario

Thu 1/10

13:18-09:40

1 stop12h 22m

£571

Flights are sorted by cheapest return flights first.

Deals found on 3/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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 £424). Flying from London to California in December is currently the most expensive (average of £594). 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 3 June 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 3 June 2026.

The most flights from LON to USCA are scheduled on a Monday (53 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (53 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 80 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 3 June 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

Crew

8.1

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

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

Crew

8.1

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

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
9,771 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

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

Crew

8.1

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

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
8,036 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

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
8,020 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

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?

    British Airways, United Airlines, and Delta can get you from London to California in just under 15h 05m. Your travel time can differ by up to 6h 46m. 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 (£246).

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

    The most popular flight routes from London to California are London Heathrow - Los Angeles 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 Malaysia Airlines (94%), Royal Jordanian (88%) or Fiji Airways (88%) 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 £423. On average you can expect to pay £2,217. The most popular route, (London Heathrow - Los Angeles Los Angeles), can usually be booked for £387.

  • 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 £424). Flying from London to California in December is currently the most expensive (average of £594). 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.
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Luton to LaGuardia flights
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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 3 June 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£238Average£538FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Norse Atlantic UKCheapest£255Average£481FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
SWISSCheapest£296Average£443FlexibilityNo cancel feeOn-time79%
Search SWISS flights
DeltaCheapest£320Average£603FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£321Average£457FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Aer LingusCheapest£332Average£667FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£335Average£480FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£343Average£591FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£346Average£484FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£351Average£493FlexibilityNo 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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