£97 Find Cheap Flights from California to the United Kingdom

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Good to know - Cheap tickets from California to the United Kingdom

Low seasonFebruary
High seasonJuly
Cheapest flight£97
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (20% more expensive on average)
Flight from Los Angeles to London Gatwick Airport

Flights from California to the United Kingdom: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from California to the United Kingdom 
Learn how KAYAK collects reviews and tips from users.
GeraldFlew with Virgin AtlanticSFO-LHRJun 2025
Virgin Atlantic uses terminal 3. Much faster clearing customs than terminal 5
Verified travelerFlew with American AirlinesSFO-LHRJun 2025
Large number of passengers on the flight so arrive early to the airport and to the boarding gate
PallaviFlew with British AirwaysSFO-LHRApr 2025
Eat at the lounge first so you are not stuck eating overcooked cheese ravioli
Verified travelerFlew with IberiaLAX-LHRJan 2025
Make sure you arrive early. Sometimes, the traffic getting to LAX can be a total nightmare.
WeiFlew with British AirwaysLAX-LHRSept 2024
Connection takes long, Make sure you plan enough time.
TapanFlew with British AirwaysSFO-LHROct 2024
Great baggage policy in BA.. The worst part was experience at London Heathrow airport. Security was slow, too many people. Almost lost connecting flight even with 2 hours layover.
Verified travelerFlew with British AirwaysLAX-LHRMar 2024
Pack your own food if you have dietary restrictions and fly other airlines if possible
MichelleFlew with British AirwaysLAX-LHRMay 2024
Make sure you separate your luggage tags from your tickets
ShaunaFlew with British AirwaysLAX-LHRDec 2023
I would suggest calling the airline to make sure that their TV screens work on the back of the seats, and if they don’t work that the entertainment option would work on your cell phones.

FAQs for booking flights from California to the United Kingdom

  • How does KAYAK find such low prices on flights from California to the United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to the United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to the United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from California to the United Kingdom is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from California to the United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from California to the United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to the United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from California to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in the United Kingdom?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United Kingdom is London Gatwick Airport (LGW), with an average flight price of £318.

  • What is the cheapest day to fly to the United Kingdom?

    Based on KAYAK data, the cheapest day to fly to the United Kingdom is Tuesday when return tickets can be as cheap as £503. On the other hand, the most expensive day to fly is Saturday, when return prices are £581 on average.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the evening, when round-trip flights cost £712 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £916.

  • What is the cheapest flight to the United Kingdom?

    The cheapest ticket to the United Kingdom from California found in the last 72 hours was to London Gatwick Airport, at £296 return. The most popular route is Los Angeles (LAX) to London Gatwick Airport (LGW) and the cheapest return airline ticket found on this route in the last 72 hours was £296.

  • What is the cheapest month to fly from California to the United Kingdom?

    The cheapest month for flights from California to the United Kingdom is October, when tickets cost £453 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is £746 and £702 respectively.

  • How far in advance should I book a flight from California to the United Kingdom?

    To get a below-average price on the flight from California to the United Kingdom, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

  • How long is the flight to the United Kingdom?

    An average direct flight from California to the United Kingdom takes 13h 50m, covering a distance of 5316 miles. The shortest route is Las Vegas (LAS) to London Heathrow Airport (LHR) with an average flight time of 9h 55m.

  • What are the most popular destinations in the United Kingdom?

    Based on KAYAK flight searches, the most popular destination is London (92% of total searches to the United Kingdom). The next most popular destinations are Manchester (3%) and Edinburgh (3%). Searches for flights to Southampton (1%), to Birmingham (1%), and to Belfast (0%) are also popular.

Book cheap flights from California to the United Kingdom

Cheapest flights to the United Kingdom from California found in 2025

Recent return flight deals

24/9Wed
2 stopsSWISS
21h 00mLAX-LHR
4/10Sat
2 stopsSWISS
31h 15mLHR-LAX
£232
14/8Thu
directNorse Atlantic UK
10h 25mLAX-LGW
29/8Fri
directNorse Atlantic UK
11h 15mLGW-LAX
£242
11/10Sat
1 stopTAP AIR PORTUGAL
22h 15mLAX-LHR
18/10Sat
1 stopTAP AIR PORTUGAL
27h 40mLHR-LAX
£273
16/9Tue
1 stopTAP AIR PORTUGAL
22h 15mLAX-LHR
30/9Tue
1 stopTAP AIR PORTUGAL
16h 40mLHR-LAX
£274
11/8Mon
direct
10h 25mLAX-LGW
30/8Sat
1 stop
21h 40mLGW-LAX
£294
11/8Mon
direct
10h 25mLAX-LGW
30/8Sat
1 stop
21h 40mLGW-LAX
£295
14/8Thu
1 stopAer Lingus
14h 40mLAX-LHR
29/8Fri
1 stopAer Lingus
16h 35mLHR-LAX
£332
7/8Thu
1 stopAer Lingus
14h 40mLAX-LHR
28/8Thu
1 stopAer Lingus
16h 35mLHR-LAX
£333
24/8Sun
2 stopsScandinavian Airlines
29h 15mSFO-LHR
27/8Wed
1 stopScandinavian Airlines
17h 50mLHR-SFO
£349
26/10Sun
1 stopScandinavian Airlines
35h 30mSFO-LHR
29/10Wed
2 stopsScandinavian Airlines
40h 30mLHR-SFO
£358

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Recent one-way flight deals

11/7Fri
directNorse Atlantic UK
10h 25mLAX-LGW
£97
19/7Sat
directNorse Atlantic UK
10h 25mLAX-LGW
£98
4/8Mon
1 stop
15h 35mSFO-LGW
£133
8/10Wed
1 stop
15h 05mSFO-LGW
£138
5/8Tue
1 stopTAP AIR PORTUGAL
17h 05mLAX-LHR
£168
22/7Tue
1 stopTAP AIR PORTUGAL
17h 05mLAX-LHR
£169
6/8Wed
1 stopSWISS
14h 15mLAX-LHR
£174
15/7Tue
1 stopIberia
18h 30mSFO-LGW
£185
15/7Tue
1 stopIberia
18h 30mSFO-LGW
£188
15/10Wed
1 stopSWISS
33h 00mSFO-LCY
£278

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Last minute flights from California to the United Kingdom

Last minute flight, train and bus deals

7/7Mon
directNorse Atlantic UK
10h 25mLAX-LGW
22/10Wed
directNorse Atlantic UK
11h 15mLGW-LAX
£394
8/7Tue
multi-stopDelta
14h 30mSFO-LGW
7/8Thu
multi-stopDelta
21h 35mLGW-SFO
£396
8/7Tue
multi-stopIberia
25h 35mSFO-LHR
7/8Thu
multi-stopIberia
21h 35mLHR-SFO
£410
8/7Tue
multi-stop
58h 12mLAX-LGW
22/10Wed
direct
11h 15mLGW-LAX
£412
8/7Tue
multi-stop
36h 03mLAX-LGW
22/10Wed
direct
11h 15mLGW-LAX
£425
8/7Tue
multi-stopBritish Airways
15h 21mLAX-LGW
24/7Thu
multi-stopBritish Airways
18h 43mLGW-LAX
£431
8/7Tue
multi-stopBritish Airways
13h 39mSFO-LHR
22/7Tue
directBritish Airways
11h 10mLHR-SFO
£434
8/7Tue
multi-stopIberia
28h 40mLAX-LGW
29/7Tue
multi-stopIberia
35h 25mLGW-LAX
£446
8/7Tue
multi-stopLufthansa
20h 40mLAX-LHR
22/7Tue
multi-stopLufthansa
28h 05mLHR-LAX
£474
8/7Tue
multi-stopLufthansa
19h 15mLAX-LHR
20/7Sun
multi-stopLufthansa
36h 25mLHR-LAX
£537

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Everything you need to know for your flight to the United Kingdom

Cabin class types available on flights to California

Cabin classes available on flights to California. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to the United Kingdomfrom £4,223
Business Class flights to the United Kingdomfrom £1,100
Prem Econ Class flights to the United Kingdomfrom £749
Economy class flights to the United Kingdomfrom £217

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