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

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 Heathrow Airport.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from California 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 London Heathrow Airport?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport 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 Heathrow Airport?

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

£207 CHEAP FLIGHTS from California to London Heathrow (LHR)

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Cheap Flights from California to Heathrow

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

Return

One-way

Last minute

Direct

Recent return flight deals from California to Heathrow

Sun, 10 Jan - Fri, 29 Jan

13:50 - 16:30SJC San Jose-LHR London Heathrow

18h 40m1 stop Los Angeles

08:55 - 21:47LHR London Heathrow-SJC San Jose

20h 52m2 stops Paris Charles de Gaulle Los Angeles

£481Virgin Atlantic

Sun, 10 Jan - Fri, 29 Jan

11:33 - 10:40SJC San Jose-LHR London Heathrow

15h 07m1 stop Seattle/Tacoma Intl

10:55 - 18:48LHR London Heathrow-SJC San Jose

15h 53m1 stop Los Angeles

£486Virgin Atlantic

Fri, 2 Oct - Mon, 12 Oct

10:20 - 17:45LAX Los Angeles-LHR London Heathrow

23h 25m1 stop Casablanca Mohamed V

18:10 - 08:20LHR London Heathrow-LAX Los Angeles

22h 10m1 stop Casablanca Mohamed V

£489Royal Air Maroc

Sun, 10 Jan - Sun, 17 Jan

20:25 - 21:05LAX Los Angeles-LHR London Heathrow

16h 40m1 stop Dublin

12:10 - 18:40LHR London Heathrow-LAX Los Angeles

14h 30m1 stop Dublin

£495Aer Lingus

Wed, 13 Jan - Wed, 27 Jan

17:25 - 11:50SFO San Francisco-LHR London Heathrow

10h 25mdirect

11:45 - 14:55LHR London Heathrow-SFO San Francisco

11h 10mdirect

£534British Airways

Wed, 13 Jan - Wed, 27 Jan

12:50 - 07:25SFO San Francisco-LHR London Heathrow

10h 35mdirect

09:00 - 16:30LHR London Heathrow-SFO San Francisco

15h 30m1 stop Zurich

£534United Airlines

Tue, 13 Oct - Tue, 27 Oct

08:45 - 12:25SJC San Jose-LHR London Heathrow

19h 40m1 stop Denver Intl

13:00 - 12:02LHR London Heathrow-SJC San Jose

30h 02m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

£537United Airlines

Tue, 27 Oct - Tue, 3 Nov

13:04 - 10:00LGB Long Beach Municipal-LHR London Heathrow

13h 56m1 stop Salt Lake City

06:20 - 16:10LHR London Heathrow-LGB Long Beach Municipal

17h 50m2 stops Paris Charles de Gaulle Salt Lake City

£539Air France

Tue, 1 Dec - Mon, 7 Dec

14:11 - 11:40BUR Burbank Bob Hope-LHR London Heathrow

13h 29m1 stop Atlanta Hartsfield-Jackson

20:25 - 16:18LHR London Heathrow-BUR Burbank Bob Hope

27h 53m2 stops Amsterdam Schiphol Salt Lake City

£546KLM

Wed, 7 Oct - Sun, 11 Oct

16:30 - 11:05LAX Los Angeles-LHR London Heathrow

10h 35mdirect

16:55 - 20:10LHR London Heathrow-LAX Los Angeles

11h 15mdirect

£566British Airways

Recent last minute flight deals from California to Heathrow

Sun, 20 Sep - Mon, 5 Oct

06:40 - 07:15SJC San Jose-LHR London Heathrow

16h 35m1 stop Atlanta Hartsfield-Jackson

14:30 - 22:06LHR London Heathrow-SJC San Jose

15h 36m1 stop Los Angeles

£511Virgin Atlantic

Sun, 20 Sep - Tue, 6 Oct

11:41 - 17:35SJC San Jose-LHR London Heathrow

21h 54m1 stop Los Angeles

11:45 - 23:00LHR London Heathrow-SJC San Jose

19h 15m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

£540Virgin Atlantic

Sun, 20 Sep - Tue, 6 Oct

06:17 - 15:05SJC San Jose-LHR London Heathrow

24h 48m1 stop Seattle/Tacoma Intl

17:00 - 20:00LHR London Heathrow-SJC San Jose

35h 00m1 stop Seattle/Tacoma Intl

£543Alaska Airlines

Sun, 20 Sep - Tue, 6 Oct

07:03 - 15:05BUR Burbank Bob Hope-LHR London Heathrow

24h 02m1 stop Seattle/Tacoma Intl

17:00 - 09:06LHR London Heathrow-BUR Burbank Bob Hope

24h 06m1 stop Seattle/Tacoma Intl

£551Alaska Airlines

Sun, 20 Sep - Fri, 28 May

15:40 - 10:10LAX Los Angeles-LHR London Heathrow

10h 30mdirect

13:05 - 16:10LHR London Heathrow-LAX Los Angeles

11h 05mdirect

£566United Airlines

Fri, 18 Sep - Wed, 7 Oct

15:40 - 10:10LAX Los Angeles-LHR London Heathrow

10h 30mdirect

06:55 - 15:15LHR London Heathrow-LAX Los Angeles

16h 20m1 stop Munich Franz Josef Strauss

£568United Airlines

Sun, 20 Sep - Sun, 27 Sep

18:05 - 12:45LAX Los Angeles-LHR London Heathrow

10h 40mdirect

08:20 - 11:45LHR London Heathrow-LAX Los Angeles

11h 25mdirect

£570British Airways

Sat, 19 Sep - Wed, 7 Oct

18:05 - 12:45LAX Los Angeles-LHR London Heathrow

10h 40mdirect

15:05 - 18:25LHR London Heathrow-LAX Los Angeles

11h 20mdirect

£570British Airways

Thu, 17 Sep - Thu, 1 Oct

20:30 - 14:55LAX Los Angeles-LHR London Heathrow

10h 25mdirect

08:55 - 18:44LHR London Heathrow-LAX Los Angeles

17h 49m1 stop Paris Charles de Gaulle

£572Delta

Thu, 17 Sep - Fri, 25 Sep

20:30 - 14:55LAX Los Angeles-LHR London Heathrow

10h 25mdirect

06:15 - 12:55LHR London Heathrow-LAX Los Angeles

14h 40m1 stop Paris Charles de Gaulle

£573Delta

Useful Info

Low season	January
High season	July
Cheapest flight	£207

Best time to beat the crowds (26% less expensive on average)

Most popular time to fly (21% more expensive on average)

Flight from San Diego 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-Sept 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 Heathrow Airport?
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 Heathrow Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to London Heathrow Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from California 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 London Heathrow Airport?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport 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 Heathrow Airport?
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 Heathrow Airport from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Gatwick

Eastbourne

Milton Keynes

Hounslow

Luton

Southend-on-Sea

Northampton

Folkestone

Newport

Winchester

Swindon

Poole

Croydon

Slough

Stansted

Colchester

Chichester

Crawley

Maidstone

Salisbury

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£207 Find Cheap Flights from California to London Heathrow Airport – Compare and Save

Cheap Flights from California to Heathrow

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Recent last minute flight deals from California to Heathrow

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Good to know - Cheap tickets from California to London Heathrow Airport

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

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