£107 Find Cheap Flights from California to the United Kingdom

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to the United Kingdom

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info
Useful Info

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

Low seasonFebruary
High seasonJuly
Cheapest flight£107
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
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 £238.

  • 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 £508. On the other hand, the most expensive day to fly is Saturday, when return prices are £590 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 £713 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 £928.

  • 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 £410 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 £410.

  • 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 £455 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is £754 and £705 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 59m, covering a distance of 5330 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 (94% of total searches to the United Kingdom). The next most popular destinations are Edinburgh (3%) and Manchester (2%). Searches for flights to Birmingham (1%), to Southampton (0%), 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

27/8mié.
2 stopsSWISS
19h 40mLAX-LHR
3/9mié.
2 stopsSWISS
29h 15mLHR-LAX
£266
15/8vie.
directNorse Atlantic UK
10h 25mLAX-LGW
28/8jue.
directNorse Atlantic UK
11h 15mLGW-LAX
£301
10/10vie.
1 stop
23h 20mLAX-LHR
12/10dom.
1 stop
18h 30mLHR-LAX
£314
25/9jue.
1 stop
34h 25mLAX-LHR
28/9dom.
1 stop
18h 30mLHR-LAX
£319
5/9vie.
directUnited Airlines
10h 30mLAX-LHR
7/9dom.
1 stopUnited Airlines
15h 45mLHR-LAX
£334
5/9vie.
1 stopUnited Airlines
12h 31mLAX-LHR
7/9dom.
1 stopUnited Airlines
15h 45mLHR-LAX
£337
5/8mar.
1 stopAer Lingus
14h 40mLAX-LHR
19/8mar.
1 stopAer Lingus
18h 45mLHR-LAX
£350
10/9mié.
1 stopAer Lingus
15h 10mLAX-LHR
24/9mié.
1 stopAer Lingus
16h 35mLHR-LAX
£351
2/10jue.
1 stopScandinavian Airlines
36h 20mSFO-LHR
5/10dom.
2 stopsScandinavian Airlines
17h 50mLHR-SFO
£354
16/10jue.
1 stopScandinavian Airlines
33h 55mSFO-LHR
19/10dom.
2 stopsScandinavian Airlines
17h 50mLHR-SFO
£363

Search by stops

Search by airline

Search by price

Recent one-way flight deals

17/7jue.
directNorse Atlantic UK
10h 25mLAX-LGW
£107
28/7lun.
directNorse Atlantic UK
10h 25mLAX-LGW
£107
24/7jue.
1 stop
16h 45mLAX-LTN
£144
13/7dom.
1 stop
26h 05mLAX-LGW
£144
6/8mié.
1 stopTAP AIR PORTUGAL
18h 30mSFO-LHR
£155
6/8mié.
1 stopTAP AIR PORTUGAL
18h 30mSFO-LHR
£155
12/9vie.
1 stopSWISS
14h 20mSFO-LHR
£157
12/10dom.
1 stopSWISS
14h 20mSFO-LGW
£160
17/7jue.
1 stopIberia
19h 45mSFO-LGW
£186
30/9mar.
1 stopIberia
15h 55mSFO-LHR
£186

Search by stops

Search by airline

Search by price

Last minute flights from California to the United Kingdom

Last minute flight, train and bus deals

15/6dom.
multi-stop
37h 00mLAX-LGW
18/6mié.
direct
11h 15mLGW-LAX
£569
14/6sáb.
multi-stop
35h 15mLAX-LGW
18/6mié.
direct
11h 15mLGW-LAX
£583
17/6mar.
multi-stopIberia
14h 23mLAX-LHR
8/8vie.
multi-stopIberia
14h 51mLHR-LAX
£620
13/6vie.
directNorse Atlantic UK
10h 25mLAX-LGW
15/6dom.
directNorse Atlantic UK
11h 15mLGW-LAX
£657
13/6vie.
directNorse Atlantic UK
10h 25mLAX-LGW
20/6vie.
directNorse Atlantic UK
11h 15mLGW-LAX
£669
15/6dom.
multi-stopJetBlue
14h 39mSFO-LGW
29/6dom.
multi-stopJetBlue
18h 08mLGW-SFO
£691
17/6mar.
multi-stopDelta
15h 15mSFO-LHR
22/7mar.
multi-stopDelta
17h 40mLHR-SFO
£698
17/6mar.
multi-stopDelta
15h 45mSFO-LHR
24/7jue.
multi-stopDelta
18h 52mLHR-SFO
£704
16/6lun.
multi-stopJetBlue
20h 15mSFO-LHR
24/7jue.
multi-stopJetBlue
21h 50mLHR-SFO
£723
17/6mar.
multi-stopIberia
14h 23mLAX-LHR
8/8vie.
directIberia
11h 20mLHR-LAX
£778

Search by stops

Search by airline

Search by price

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 £4,242
Business Class flights to the United Kingdomfrom £1,109
Prem Econ Class flights to the United Kingdomfrom £1,043
Economy class flights to the United Kingdomfrom £302

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.