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Cheap flights from California to London 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LON
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from California to London

Enter your travel dates to find the best prices.

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 2 February 2026.

Fri 27/219:10
SFO
-
LGW
1 stop30h 40m
TAP AIR PORTUGAL
Fri 6/321:25
LGW
-
SFO
2 stops25h 20m
TAP AIR PORTUGAL
Deal found 31/1£434
Sun 1/216:30
SFO
-
LHR
Nonstop10h 10m
Virgin Atlantic
Tue 17/206:30
LHR
-
SFO
1 stop13h 20m
Virgin Atlantic
Deal found 1/2£434
Wed 4/317:30
LAX
-
LHR
1 stop14h 20m
Lufthansa
Tue 10/307:40
LHR
-
LAX
1 stop15h 35m
Lufthansa
Deal found 1/2£434
Mon 16/216:35
SFO
-
LGW
2 stops20h 00m
TAP AIR PORTUGAL
Fri 27/216:40
LGW
-
SFO
1 stop30h 05m
TAP AIR PORTUGAL
Deal found 31/1£434
Sun 8/219:25
SFO
-
LHR
1 stop14h 25m
SWISS
Tue 24/209:00
LHR
-
SFO
1 stop15h 30m
SWISS
Deal found 2/2£434
Sat 28/216:45
LAX
-
LGW
1 stop33h 05m
TAP AIR PORTUGAL
Fri 13/321:25
LGW
-
LAX
2 stops25h 35m
TAP AIR PORTUGAL
Deal found 31/1£434
Sun 22/219:30
LAX
-
LHR
1 stop14h 10m
Scandinavian Airlines
Mon 2/321:05
LHR
-
LAX
2 stops27h 55m
Scandinavian Airlines
Deal found 30/1£435
Fri 24/420:20
SFO
-
LGW
1 stop29h 25m
TAP AIR PORTUGAL
Thu 7/521:20
LGW
-
SFO
2 stops27h 30m
TAP AIR PORTUGAL
Deal found 1/2£435
Mon 13/416:45
SFO
-
STN
2 stops22h 35m
Multiple Airlines
Mon 27/411:10
STN
-
SFO
3 stops35h 30m
Multiple Airlines
Deal found 31/1£435
Sat 7/316:40
SFO
-
LHR
2 stops19h 15m
Scandinavian Airlines
Sun 15/319:30
LHR
-
SFO
1 stop27h 05m
Scandinavian Airlines
Deal found 1/2£435
Tue 10/320:10
LAX
-
LGW
1 stop14h 40m
SWISS
Tue 17/318:40
LGW
-
LAX
1 stop29h 55m
SWISS
Deal found 30/1£435
Tue 3/216:45
LAX
-
LHR
1 stop20h 50m
TAP AIR PORTUGAL
Thu 10/1206:00
LHR
-
LAX
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 30/1£436

Find flight deals from California to London

Keep the following information in mind while searching for California to London flight deals. Data was last updated 2 February 2026.

Round-trip from

£434

One-way from

£224

Popular in

December

Cheapest in

September

Average price

£478

Good round-trip deal

£470 or less

Good one-way deal

£262 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 27/2-6/3
  • 3 total stops
  • 56h 00m total
  • California to London
Search Deals
4/5
  • 4/5
  • 2 total stops
  • 29h 00m total
  • California to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from California to London (LON).
Search Deals
Price to beat on a one-way flight from California to London (LON).
Search Deals

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 2 February 2026.
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

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 17/3

15:40-20:30

2 stops21h 50m

London Stansted

Tue 24/3

17:20-20:35

2 stops34h 15m

£437

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 2/3

16:35-15:45

1 stop15h 10m

London Gatwick

Mon 9/3

21:25-15:30

2 stops49h 05m

£438

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 27/4

16:45-18:50

2 stops18h 05m

London Heathrow

Mon 4/5

21:05-14:40

2 stops25h 35m

£443

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 5/3

19:20-14:00

Nonstop10h 40m

London Heathrow

Tue 17/3

10:20-18:05

1 stop14h 45m

£452

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 24/2

12:50-07:25

Nonstop10h 35m

London Heathrow

Tue 3/3

06:35-14:50

1 stop16h 15m

£453

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 28/2

12:50-07:25

Nonstop10h 35m

London Heathrow

Wed 11/3

11:10-20:35

1 stop16h 25m

£453

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 2/3

16:30-10:40

Nonstop10h 10m

London Heathrow

Sun 8/3

11:45-12:50

1 stop32h 05m

£453

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 16/2

17:25-12:00

Nonstop10h 35m

London Heathrow

Mon 9/3

12:05-17:30

1 stop36h 25m

£453

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 7/3

08:25-07:10

1 stop14h 45m

London Heathrow

Tue 17/3

09:00-17:30

1 stop15h 30m

£456

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 5/3

19:20-20:10

2 stops16h 50m

London Heathrow

Mon 9/3

06:30-12:45

1 stop13h 15m

£460

Flights are sorted by cheapest return flights first.

Deals found on 31/1

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, October is the cheapest month in which you can book a flight from California to London (average of £162). Flying from California to London in June is currently the most expensive (average of £419). 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 2 February 2026.

It’s typically best to fly out from California to London in the afternoon. Doing so could potentially save you 23% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from California to London?

Use this chart to determine the cheapest time to fly return from California to London. Price data was last updated on 31 January 2026.

Travellers seeking maximum savings on their California to London flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 2 February 2026.

The most flights from USCA to LON are scheduled on a Saturday (43 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (33 on average).

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 40m. Airlines will cover a distance of 5439 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as £118 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Norse Atlantic UK from £124 and Scandinavian Airlines from £182 one-way.

  • 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 Gatwick.

  • 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: Air Canada (93%), Austrian Airlines (93%), United Airlines( 93%).

  • What are the cheapest flights from California to London?

    Looking for the cheapest flight from California to London? While on average our users pay £1,122, our data indicates the cheapest price to be £155. The most popular route (Los Angeles - London Heathrow), is priced around £367.

  • 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, October is the cheapest month in which you can book a flight from California to London (average of £162). Flying from California to London in June is currently the most expensive (average of £419). 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
Luton
Wembley
Gatwick
Slough
Ilford
Hounslow
Brentford
Hayes
Colchester
Watford
Guildford
Bedford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames
Romford
Ipswich

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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 2 February 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£309Average£559FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
KLMCheapest£357Average£524FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£361Average£521FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£361Average£535FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapest£369Average£499FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£379Average£587FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£385Average£586FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£388Average£552FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£396Average£673FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£417Average£517FlexibilityNo cancel feeOn-time77%
Search Iberia 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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