How does KAYAK find such low prices on flights from California to London?

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 London.

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

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

What is the Hacker Fare option on flights from California to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to California with another airline.

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

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 to London from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$276 CHEAP FLIGHTS from California to London

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Cheap Flights from California to London

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from California to London

Wed, Feb 3 - Fri, Feb 5

2:45 pm - 11:50 amSFO San Francisco-LHR London Heathrow

13h 05m1 stop Vancouver Intl

9:00 am - 4:30 pmLHR London Heathrow-SFO San Francisco

15h 30m1 stop Zurich

$731United Airlines

Tue, Mar 16 - Thu, Mar 18

2:45 pm - 11:50 amSFO San Francisco-LHR London Heathrow

14h 05m1 stop Vancouver Intl

9:00 am - 5:30 pmLHR London Heathrow-SFO San Francisco

15h 30m1 stop Zurich

$731United Airlines

Thu, Jan 28 - Sun, Jan 31

4:45 pm - 9:35 amSFO San Francisco-LHR London Heathrow

32h 50m2 stops Kastrup Copenhagen Oslo Gardermoen

6:40 am - 2:50 pmLHR London Heathrow-SFO San Francisco

16h 10m1 stop Kastrup Copenhagen

$731Scandinavian Airlines

Sun, Nov 1 - Tue, Nov 17

4:45 pm - 4:00 pmSFO San Francisco-LHR London Heathrow

15h 15m1 stop Kastrup Copenhagen

6:40 am - 2:50 pmLHR London Heathrow-SFO San Francisco

16h 10m1 stop Kastrup Copenhagen

$733Scandinavian Airlines

Mon, Feb 22 - Tue, Feb 23

8:25 am - 7:10 amSFO San Francisco-LHR London Heathrow

14h 45m1 stop Montreal Pierre Elliott Trudeau Intl

8:05 pm - 4:30 pmLHR London Heathrow-SFO San Francisco

28h 25m1 stop Zurich

$734Multiple Airlines

Mon, Feb 22 - Tue, Feb 23

8:19 am - 9:20 amSFO San Francisco-LHR London Heathrow

17h 01m1 stop Calgary

6:00 pm - 9:33 pmLHR London Heathrow-SFO San Francisco

35h 33m2 stops Brussels Bruxelles-National Montreal Pierre Elliott Trudeau Intl

$735Air Canada

Wed, Dec 9 - Wed, Dec 16

4:35 pm - 5:30 pmSFO San Francisco-LHR London Heathrow

16h 55m1 stop Lisbon Humberto Delgado

6:00 am - 2:45 pmLHR London Heathrow-SFO San Francisco

16h 45m1 stop Lisbon Humberto Delgado

$735TAP AIR PORTUGAL

Fri, Dec 11 - Wed, Dec 16

7:15 pm - 9:35 pmSFO San Francisco-LHR London Heathrow

18h 20m1 stop Lisbon Humberto Delgado

6:00 am - 2:45 pmLHR London Heathrow-SFO San Francisco

16h 45m1 stop Lisbon Humberto Delgado

$735TAP AIR PORTUGAL

Mon, Oct 19 - Mon, Oct 26

10:19 pm - 3:50 pmSFO San Francisco-LGW London Gatwick

33h 31m3 stops Las Vegas Harry Reid Intl Los Angeles Casablanca Mohamed V

4:10 pm - 8:32 pmLGW London Gatwick-SFO San Francisco

35h 22m2 stops Casablanca Mohamed V Los Angeles

$737Multiple Airlines

Sun, Jan 17 - Mon, Feb 1

2:40 pm - 11:50 amSFO San Francisco-LHR London Heathrow

13h 10m1 stop Vancouver Intl

6:00 am - 9:33 pmLHR London Heathrow-SFO San Francisco

23h 33m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

$780Air Canada

Recent last minute flight deals from California to London

Sun, Oct 4 - Sat, Nov 7

4:45 pm - 5:40 pmSFO San Francisco-LHR London Heathrow

16h 55m1 stop Kastrup Copenhagen

6:40 am - 2:50 pmLHR London Heathrow-SFO San Francisco

16h 10m1 stop Kastrup Copenhagen

$738Scandinavian Airlines

Mon, Oct 5 - Wed, Oct 14

7:30 am - 11:40 amLAX Los Angeles-LGW London Gatwick

20h 10m2 stops Toronto Pearson Intl Madrid Barajas

5:05 pm - 4:00 pmLGW London Gatwick-LAX Los Angeles

30h 55m3 stops Madrid Barajas Frankfurt am Main Vancouver Intl

$744Multiple Airlines

Tue, Oct 6 - Thu, Oct 15

10:20 am - 10:50 pmLAX Los Angeles-LGW London Gatwick

28h 30m2 stops Casablanca Mohamed V Barcelona-El Prat

2:30 pm - 8:20 amLGW London Gatwick-LAX Los Angeles

25h 50m2 stops Barcelona-El Prat Casablanca Mohamed V

$749Multiple Airlines

Tue, Oct 6 - Mon, Oct 19

10:20 am - 5:45 pmLAX Los Angeles-LHR London Heathrow

23h 25m1 stop Casablanca Mohamed V

6:10 pm - 8:20 amLHR London Heathrow-LAX Los Angeles

22h 10m1 stop Casablanca Mohamed V

$752Royal Air Maroc

Tue, Oct 6 - Thu, Oct 15

10:20 am - 4:50 pmLAX Los Angeles-LHR London Heathrow

22h 30m1 stop Casablanca Mohamed V

6:10 pm - 8:20 amLHR London Heathrow-LAX Los Angeles

22h 10m1 stop Casablanca Mohamed V

$752Royal Air Maroc

Wed, Oct 7 - Wed, Nov 4

4:35 pm - 6:50 pmSFO San Francisco-LHR London Heathrow

18h 15m1 stop Lisbon Humberto Delgado

6:00 am - 2:45 pmLHR London Heathrow-SFO San Francisco

16h 45m1 stop Lisbon Humberto Delgado

$761TAP AIR PORTUGAL

Wed, Oct 7 - Mon, Oct 19

4:35 pm - 10:55 pmSFO San Francisco-LHR London Heathrow

22h 20m1 stop Lisbon Humberto Delgado

6:45 pm - 1:35 pmLHR London Heathrow-SFO San Francisco

26h 50m1 stop Lisbon Humberto Delgado

$762TAP AIR PORTUGAL

Sun, Oct 4 - Wed, Oct 21

4:45 pm - 9:40 pmSFO San Francisco-LHR London Heathrow

20h 55m1 stop Kastrup Copenhagen

6:40 pm - 2:40 pmLHR London Heathrow-SFO San Francisco

28h 00m1 stop Kastrup Copenhagen

$800Scandinavian Airlines

Sat, Oct 3 - Mon, Nov 9

4:35 pm - 11:00 amSFO San Francisco-LHR London Heathrow

10h 25mnonstop

11:45 am - 2:55 pmLHR London Heathrow-SFO San Francisco

11h 10mnonstop

$824British Airways

Sun, Oct 4 - Wed, Nov 4

7:30 pm - 1:55 pmSFO San Francisco-LHR London Heathrow

10h 25mnonstop

11:45 am - 2:55 pmLHR London Heathrow-SFO San Francisco

11h 10mnonstop

$830British Airways

Useful Info

Low season	January
High season	June
Cheapest flight	$276

Best time to beat the crowds with an average 22% drop in price.

Most popular time to fly with an average 39% increase in price.

Flight from Palm Springs to London Heathrow Airport

Verified travelerFlew with British Airways-Dec 2025

If not getting off in London make sure you have enough time to get to your connecting gates

Verified travelerFlew with Iberia-Jan 2026

Buy your flight directly from the airline because the cancellation process is purgatory

GeraldFlew with Virgin Atlantic-Jun 2025

Virgin Atlantic uses terminal 3. Much faster clearing customs than terminal 5

Verified travelerFlew with American Airlines-Jun 2025

Large number of passengers on the flight so arrive early to the airport and to the boarding gate

ValerieFlew with British Airways-Apr 2025

It was difficult to tell if the checked luggage was included. London Heathrow is huge and if the second flight hasn't been delayed I would have missed it.

PallaviFlew with British Airways-Apr 2025

Eat at the lounge first so you are not stuck eating overcooked cheese ravioli

Verified travelerFlew with Iberia-Jan 2025

Make sure you arrive early. Sometimes, the traffic getting to LAX can be a total nightmare.

WeiFlew with British Airways-Sep 2024

Connection takes long, Make sure you plan enough time.

TapanFlew with British Airways-Oct 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 Airways-Mar 2024

Pack your own food if you have dietary restrictions and fly other airlines if possible

MichelleFlew with British Airways-May 2024

Make sure you separate your luggage tags from your tickets

ShaunaFlew with British Airways-Dec 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.

How does KAYAK find such low prices on flights from California to London?
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 London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from California is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from California to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to California with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to London?
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 to London from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Hounslow

Hayes

Slough

Richmond

Wembley

Luton

Eastbourne

Ilford

Guildford

Bedford

Kingston upon Thames

Crawley

Watford

Twickenham

Harrow

St. Albans

Ipswich

Folkestone

Colchester

Horley

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$276 Find Cheap Flights from California to London - Compare and Save

Cheap Flights from California to London

Recent round-trip flight deals from California to London

Recent one-way flight deals from California to London

Recent last minute flight deals from California to London

Recent direct flight deals from California to London

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Flights from California to London: the best tips from KAYAK users

FAQs for booking flights from California to London

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Complete your trip to London with a hotel stay or car rental

Cabin class types available on flights to California

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