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Cheap flights from London to California from £224

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
18 Jun — 25 Jun1
1 adult

Cheap flight deals from London to California

Keep the following information in mind while searching for London to California flight deals. Data was last updated 13 June 2025.

Round-trip from

£370

One-way from

£224

Popular in

August

Cheapest in

February

Average price

£491

Good round-trip deal

£384 or less

Good one-way deal

£194 or less
British Airways
  • British Airways
  • 1/9-30/9
  • 2 total stops
  • 32h 14m total
  • London to California
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18/6
  • 18/6
  • 1 total stop
  • 22h 05m total
  • London to California
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£40 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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.
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Find flight deals from London to California

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 13 June 2025.

Mon 1/916:25LHR - ONT
1 stop15h 42mBritish Airways
Tue 30/916:45ONT - LHR
1 stop13h 55mBritish Airways
Deal found 11/6£370
Tue 23/910:30LHR - SNA
1 stop17h 43mBritish Airways
Tue 30/916:35SNA - LHR
1 stop14h 05mBritish Airways
Deal found 11/6£370
Wed 17/911:45LHR - ONT
2 stops20h 01mVirgin Atlantic
Wed 24/912:00ONT - LHR
1 stop17h 30mVirgin Atlantic
Deal found 10/6£372
Mon 1/908:40LHR - LAX
1 stop14h 10mVirgin Atlantic
Mon 15/908:00LAX - LHR
1 stop14h 45mVirgin Atlantic
Deal found 11/6£372
Sun 14/910:55LGW - LAX
Nonstop11h 15mNorse Atlantic UK
Sun 21/916:30LAX - LGW
Nonstop10h 25mNorse Atlantic UK
Deal found 10/6£372
Mon 8/906:30LHR - ONT
2 stops18h 41mKLM
Mon 15/909:55ONT - LHR
1 stop15h 55mKLM
Deal found 10/6£373
Tue 24/619:50LGW - LAX
1 stop29h 40mMultiple Airlines
Thu 17/716:30LAX - LGW
Nonstop10h 25mMultiple Airlines
Deal found 11/6£375
Tue 16/910:20LHR - LAX
1 stop14h 45mFinnair
Thu 25/913:35LAX - LHR
Nonstop10h 25mFinnair
Deal found 11/6£378
Thu 11/919:50LHR - LAX
1 stop26h 45mTAP AIR PORTUGAL
Tue 16/916:40LAX - LHR
1 stop17h 05mTAP AIR PORTUGAL
Deal found 12/6£379
Mon 8/915:05LGW - LAX
1 stop16h 06mAmerican Airlines
Wed 17/910:20LAX - LGW
1 stop13h 50mAmerican Airlines
Deal found 12/6£380
Sat 6/916:30LGW - LAX
1 stop29h 55mTAP AIR PORTUGAL
Sat 13/916:40LAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
Deal found 11/6£381
Wed 10/915:05LGW - LAX
1 stop17h 13mBritish Airways
Wed 24/908:00LAX - LGW
1 stop16h 10mBritish Airways
Deal found 12/6£382

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 13 June 2025.
Use the filters below to find and compare flights from London to California that are best for you.

Fly from

London

Fly to

California

Route

Depart

Return

Price

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 1/9

16:25-00:07

1 stop15h 42m

Ontario

Tue 30/9

16:45-14:40

1 stop13h 55m

£370

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Tue 23/9

10:30-20:13

1 stop17h 43m

Santa Ana J. Wayne/Orange Cnty

Tue 30/9

16:35-14:40

1 stop14h 05m

£370

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 17/9

11:45-23:46

2 stops20h 01m

Ontario

Wed 24/9

12:00-13:30

1 stop17h 30m

£372

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Sun 14/9

10:55-14:10

Nonstop11h 15m

Los Angeles

Sun 21/9

16:30-10:55

Nonstop10h 25m

£372

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 1/9

08:40-14:50

1 stop14h 10m

Los Angeles

Mon 15/9

08:00-06:45

1 stop14h 45m

£372

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 8/9

06:30-17:11

2 stops18h 41m

Ontario

Mon 15/9

09:55-09:50

1 stop15h 55m

£373

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Tue 24/6

19:50-17:30

1 stop29h 40m

Los Angeles

Thu 17/7

16:30-10:55

Nonstop10h 25m

£375

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 30/6

06:00-16:30

1 stop18h 30m

Los Angeles

Mon 7/7

19:35-21:45

1 stop18h 10m

£377

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 16/9

10:20-17:05

1 stop14h 45m

Los Angeles

Thu 25/9

13:35-08:00

Nonstop10h 25m

£378

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 11/9

19:50-14:35

1 stop26h 45m

Los Angeles

Tue 16/9

16:40-17:45

1 stop17h 05m

£379

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 60 results
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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, January is the cheapest month in which you can book a flight from London to California (average of £575). Flying from London to California in July is currently the most expensive (average of £811). 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 13 June 2025.

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 13 June 2025.

The most flights from LON to USCA are scheduled on a Monday (54 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (49 on average).

Rainfall in California by month

Plan your trip to California by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in California ranges from 0.0 - 87.0 inches per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit California when rainfall is around 0.0 mm.

Temperature in California by month

Plan your trip to California by taking into account the average temperature totals by month.

If weather is an important factor for your trip to California, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 13 June 2025.
Read reviews from past customers who have flown Delta, Air New Zealand and Alaska Airlines from London to California. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,950 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,950 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air New Zealand
8.0
Very Good
483 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Alaska Airlines
8.0
Very Good
10,000 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Transat
7.8
Good
396 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 Norse Atlantic UK (£228), A.P.G. (£282), and Aer Lingus (£291).

  • 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 SriLankan Airlines (94%), Iberia (91%) or KLM (90%) 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 £351. On average you can expect to pay £3,508. The most popular route, (London Heathrow - Los Angeles), can usually be booked for £204.

  • 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, January is the cheapest month in which you can book a flight from London to California (average of £575). Flying from London to California in July is currently the most expensive (average of £811). 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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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£235Average£497FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SWISSCheapest£274Average£491FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air CanadaCheapest£275Average£487FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Norse Atlantic UKCheapest£307Average£521FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Air FranceCheapest£312Average£464FlexibilityNo cancel feeOn-time77%
Search Air France flights
Austrian AirlinesCheapest£340Average£479FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
TAP AIR PORTUGALCheapest£341Average£479FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£341Average£490FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
KLMCheapest£342Average£506FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£352Average£569FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

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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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