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Cheap flights from California to London from £121

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LON
24 Aug — 31 Aug1
1 adult

Cheap flight deals from California to London

Keep the following information in mind while searching for California to London flight deals. Data was last updated 19 August 2025.

Round-trip from

£364

One-way from

£121

Popular in

December

Cheapest in

August

Average price

£454

Good round-trip deal

£137 or less

Good one-way deal

£127 or less
Finnair
  • Finnair
  • 21/9-9/10
  • 2 total stops
  • 34h 10m total
  • California to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 28/9
  • 1 total stop
  • 22h 15m total
  • California to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£50 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from California to London (LON).
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Price to beat on a one-way flight from California to London (LON).
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Find flight deals from California to London

Cheapest flights from California to London
Explore the most affordable flight options available from California to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Sun 21/918:45LAX - LHR
1 stop19h 25mFinnair
Thu 9/1010:20LHR - LAX
1 stop14h 45mFinnair
Deal found 19/8£364
Sat 6/916:25LAX - LGW
Nonstop10h 25mNorse Atlantic UK
Wed 10/910:55LGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 18/8£364
Tue 7/1021:30LAX - LHR
Nonstop10h 35mIberia
Tue 14/1020:50LHR - LAX
1 stop24h 45mIberia
Deal found 17/8£365
Mon 8/916:25LAX - LGW
Nonstop10h 25mNorse Atlantic UK
Wed 10/910:55LGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 18/8£365
Sun 26/1019:50LAX - LHR
1 stop14h 10mFinnair
Tue 4/1110:20LHR - LAX
1 stop14h 45mFinnair
Deal found 19/8£366
Mon 27/1014:30LAX - LTN
1 stop35h 00mMultiple Airlines
Sun 9/1109:15LTN - LAX
1 stop35h 15mMultiple Airlines
Deal found 18/8£366
Thu 11/916:30LAX - LGW
Nonstop10h 25mNorse Atlantic UK
Sat 20/909:50LGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 19/8£366
Mon 29/920:05LAX - LHR
Nonstop10h 30mVirgin Atlantic
Wed 15/1009:55LHR - LAX
Nonstop11h 20mVirgin Atlantic
Deal found 18/8£366
Wed 8/1016:30LAX - LGW
Nonstop10h 25mNorse Atlantic UK
Wed 22/1010:55LGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 17/8£366
Wed 24/916:30LAX - LGW
Nonstop10h 25mNorse Atlantic UK
Wed 8/1010:55LGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 17/8£367
Wed 3/909:05LAX - LHR
1 stop13h 20mIberia
Tue 14/1020:50LHR - LAX
1 stop24h 45mIberia
Deal found 19/8£368
Mon 1/920:05LAX - LHR
Nonstop10h 30mVirgin Atlantic
Tue 16/909:55LHR - LAX
Nonstop11h 20mVirgin Atlantic
Deal found 17/8£369

Cheapflights Fare Finder

 
Customise your flight search to find flights from California to London 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 19 August 2025.
Use the filters below to find and compare flights from California to London that are best for you.

Fly from

California

Fly to

London

Route

Depart

Return

Price

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sat 6/9

16:25-10:50

Nonstop10h 25m

London Gatwick

Wed 10/9

10:55-14:10

Nonstop11h 15m

£364

Los AngelesLondon

LAX - LTN

LAXLTN

Los Angeles

Mon 27/10

14:30-08:30

1 stop35h 00m

London Luton

Sun 9/11

09:15-12:30

1 stop35h 15m

£366

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 26/10

19:50-17:00

1 stop14h 10m

London Heathrow

Tue 4/11

07:30-17:05

1 stop17h 35m

£366

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sun 21/9

16:30-10:55

Nonstop10h 25m

London Gatwick

Sun 28/9

10:55-14:10

Nonstop11h 15m

£370

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Wed 1/10

16:30-10:55

Nonstop10h 25m

London Gatwick

Wed 8/10

10:55-14:10

Nonstop11h 15m

£370

Los AngelesLondon

LAX - LTN

LAXLTN

Los Angeles

Tue 11/11

18:50-20:55

1 stop18h 05m

London Luton

Wed 19/11

21:40-10:55

1 stop21h 15m

£372

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sat 6/9

16:25-10:50

Nonstop10h 25m

London Gatwick

Sat 20/9

09:50-13:05

Nonstop11h 15m

£373

Los AngelesLondon

LAX - LTN

LAXLTN

Los Angeles

Mon 3/11

14:30-08:30

1 stop34h 00m

London Luton

Sun 16/11

09:15-12:30

1 stop35h 15m

£375

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 29/9

20:05-14:35

Nonstop10h 30m

London Heathrow

Wed 15/10

11:30-18:10

1 stop14h 40m

£376

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 2/9

20:05-14:35

Nonstop10h 30m

London Heathrow

Thu 18/9

11:30-18:25

1 stop14h 55m

£376

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 60 results
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Best time to book a flight from California to London

Have a flexible travel schedule? Discover the best time to fly to London from California 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 California to London

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

Currently, January is the cheapest month in which you can book a flight from California to London (average of £112). Flying from California to London in August is currently the most expensive (average of £164). 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 CA to LON?

Find hourly flight availability from California to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to London as you normally would.

Weekly flight availability from California to London

Explore weekly flight availability from California to London. 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 19 August 2025.

The most flights from USCA to LON are scheduled on a Monday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (42 on average).

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

Related info for your journey

Find useful and relevant information for your journey from California to London. 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 California to London?

    Departing from California to London will take you 10h 25m. Airlines will cover a distance of 5463 mi. This flight may include one or multiple stops.

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

    The most popular flight routes from California to London are Los Angeles - London Heathrow, San Francisco - London Heathrow and Los Angeles - London City.

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

    Before booking your flight to London from California, check out the most reliable airlines to get you to your destination on time: KLM (94%), Air France (94%), Delta( 94%).

  • What are the cheapest flights from California to London?

    Looking for the cheapest flight from California to London? While on average our users pay £1,133, our data indicates the cheapest price to be £276. The most popular route (Los Angeles - London Heathrow), is priced around £319.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from California to London 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 California to London?

    Currently, January is the cheapest month in which you can book a flight from California to London (average of £112). Flying from California to London in August is currently the most expensive (average of £164). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Deal
Luton
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Winchester
Eastbourne
Chichester
Southend-on-Sea
Dartford
Guildford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for California to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from California to London

Discover the top 10 airlines that operate flights from California to London. 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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£301Average£442FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£316Average£621FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£361Average£497FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£365Average£627FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Norse Atlantic UKCheapest£370Average£536FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£373Average£561FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£383Average£607FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TAP AIR PORTUGALCheapest£388Average£403FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air FranceCheapest£390Average£593FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£392Average£650FlexibilityNo cancel feeOn-time69%
Search United 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 California to London?

Deals for California to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to London from California by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes, we can. To see specific flights from California to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on California to London 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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