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.

£224 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

Mon, 12 Oct - Thu, 15 Oct

19:10 - 09:35LAX Los Angeles-LHR London Heathrow

30h 25m2 stops Kastrup Copenhagen Oslo Gardermoen

06:40 - 16:50LHR London Heathrow-LAX Los Angeles

42h 10m2 stops Stockholm Arlanda Kastrup Copenhagen

£551Scandinavian Airlines

Sun, 29 Nov - Sun, 6 Dec

12:30 - 11:50LAX Los Angeles-LHR London Heathrow

15h 20m1 stop Vancouver Intl

07:50 - 18:40LHR London Heathrow-LAX Los Angeles

18h 50m1 stop Dublin

£551Multiple Airlines

Wed, 2 Dec - Fri, 4 Dec

17:30 - 15:50LAX Los Angeles-LHR London Heathrow

14h 20m1 stop Munich Franz Josef Strauss

07:40 - 22:59LHR London Heathrow-LAX Los Angeles

23h 19m2 stops Munich Franz Josef Strauss San Francisco

£553Lufthansa

Tue, 1 Dec - Thu, 3 Dec

17:30 - 15:50LAX Los Angeles-LHR London Heathrow

14h 20m1 stop Munich Franz Josef Strauss

06:35 - 22:59LHR London Heathrow-LAX Los Angeles

24h 24m2 stops Munich Franz Josef Strauss San Francisco

£553Lufthansa

Mon, 21 Sep - Tue, 29 Sep

17:10 - 11:35LAX Los Angeles-LHR London Heathrow

10h 25mdirect

10:30 - 13:50LHR London Heathrow-LAX Los Angeles

11h 20mdirect

£555British Airways

Mon, 30 Nov - Wed, 2 Dec

18:55 - 13:30LAX Los Angeles-LHR London Heathrow

10h 35mdirect

09:00 - 16:35LHR London Heathrow-LAX Los Angeles

15h 35m1 stop Zurich

£560United Airlines

Mon, 30 Nov - Wed, 2 Dec

12:30 - 11:50LAX Los Angeles-LHR London Heathrow

15h 20m1 stop Vancouver Intl

09:00 - 16:35LHR London Heathrow-LAX Los Angeles

15h 35m1 stop Zurich

£560United Airlines

Wed, 25 Nov - Sun, 13 Dec

17:30 - 12:10LAX Los Angeles-LHR London Heathrow

10h 40mdirect

07:30 - 16:40LHR London Heathrow-LAX Los Angeles

17h 10m1 stop Madrid Barajas

£561Iberia

Thu, 17 Sep - Wed, 23 Sep

17:10 - 11:35LAX Los Angeles-LHR London Heathrow

10h 25mdirect

11:40 - 15:00LHR London Heathrow-LAX Los Angeles

11h 20mdirect

£564British Airways

Sun, 10 Jan - Wed, 17 Feb

17:30 - 12:10LAX Los Angeles-LHR London Heathrow

10h 40mdirect

07:35 - 16:40LHR London Heathrow-LAX Los Angeles

17h 05m1 stop Madrid Barajas

£566Iberia

Recent last minute flight deals from California to Heathrow

Sat, 5 Sep - Sat, 12 Sep

17:40 - 16:00SFO San Francisco-LHR London Heathrow

14h 20m1 stop Dublin

07:40 - 15:55LHR London Heathrow-SFO San Francisco

16h 15m1 stop Dublin

£667Aer Lingus

Fri, 4 Sep - Fri, 11 Dec

20:35 - 20:45LAX Los Angeles-LHR London Heathrow

16h 10m1 stop New York John F Kennedy Intl

16:55 - 20:15LHR London Heathrow-LAX Los Angeles

11h 20mdirect

£684Multiple Airlines

Tue, 1 Sep - Thu, 10 Sep

13:20 - 12:15LAX Los Angeles-LHR London Heathrow

14h 55m1 stop Chicago O'Hare Intl

07:30 - 17:10LHR London Heathrow-LAX Los Angeles

17h 40m1 stop Helsinki-Vantaa

£747Finnair

Tue, 1 Sep - Thu, 10 Sep

13:20 - 12:15LAX Los Angeles-LHR London Heathrow

14h 55m1 stop Chicago O'Hare Intl

07:30 - 17:10LHR London Heathrow-LAX Los Angeles

17h 40m1 stop Helsinki-Vantaa

£748Finnair

Tue, 1 Sep - Thu, 17 Sep

12:49 - 10:40LAX Los Angeles-LHR London Heathrow

13h 51m1 stop Washington, D.C. Dulles Intl

07:25 - 15:15LHR London Heathrow-LAX Los Angeles

15h 50m1 stop Munich Franz Josef Strauss

£751Lufthansa

Tue, 1 Sep - Tue, 15 Sep

15:35 - 10:10LAX Los Angeles-LHR London Heathrow

10h 35mdirect

07:25 - 15:15LHR London Heathrow-LAX Los Angeles

15h 50m1 stop Munich Franz Josef Strauss

£751Lufthansa

Tue, 1 Sep - Tue, 15 Sep

17:55 - 12:15SFO San Francisco-LHR London Heathrow

10h 20mdirect

19:15 - 11:45LHR London Heathrow-SFO San Francisco

24h 30m1 stop Amsterdam Schiphol

£761Virgin Atlantic

Tue, 1 Sep - Tue, 15 Sep

13:45 - 09:00SFO San Francisco-LHR London Heathrow

35h 15m1 stop Amsterdam Schiphol

19:15 - 11:45LHR London Heathrow-SFO San Francisco

24h 30m1 stop Amsterdam Schiphol

£763Virgin Atlantic

Tue, 1 Sep - Wed, 16 Sep

15:35 - 10:10LAX Los Angeles-LHR London Heathrow

10h 35mdirect

07:25 - 15:15LHR London Heathrow-LAX Los Angeles

15h 50m1 stop Munich Franz Josef Strauss

£771United Airlines

Tue, 1 Sep - Wed, 16 Sep

14:29 - 12:25LAX Los Angeles-LHR London Heathrow

13h 56m1 stop Denver Intl

07:25 - 15:15LHR London Heathrow-LAX Los Angeles

15h 50m1 stop Munich Franz Josef Strauss

£771United Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	£224

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

Most popular time to fly (20% 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

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Milton Keynes

Hounslow

Luton

Southend-on-Sea

Northampton

Newport

Winchester

Swindon

Folkestone

Slough

Croydon

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Poole

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Crawley

Maidstone

Salisbury

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London Heathrow Airport (LHR)

£224 Find Cheap Flights from California to London Heathrow Airport – Compare and Save

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

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Everything you need to know for your flight to Heathrow

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