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.

£121 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

Thu, 26 Nov - Thu, 3 Dec

10:00 - 09:30LAX Los Angeles-LHR London Heathrow

15h 30m1 stop New York John F Kennedy Intl

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

18h 50m1 stop Dublin

£559Multiple Airlines

Mon, 26 Oct - Fri, 30 Oct

12:45 - 09:30LAX Los Angeles-LHR London Heathrow

13h 45m1 stop New York John F Kennedy Intl

12:10 - 19:40LHR London Heathrow-LAX Los Angeles

14h 30m1 stop Dublin

£559Multiple Airlines

Tue, 1 Dec - Wed, 9 Dec

20:50 - 15:25LAX Los Angeles-LHR London Heathrow

10h 35mdirect

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

17h 05m1 stop Madrid Barajas

£560Iberia

Tue, 2 Mar - Fri, 5 Mar

20:00 - 11:15BUR Burbank Bob Hope-LHR London Heathrow

31h 15m1 stop San Francisco

09:30 - 22:08LHR London Heathrow-BUR Burbank Bob Hope

20h 38m2 stops Frankfurt am Main San Francisco

£561United Airlines

Tue, 2 Mar - Fri, 5 Mar

20:00 - 11:15BUR Burbank Bob Hope-LHR London Heathrow

31h 15m1 stop San Francisco

09:30 - 22:08LHR London Heathrow-BUR Burbank Bob Hope

20h 38m2 stops Frankfurt am Main San Francisco

£561United Airlines

Fri, 4 Dec - Sun, 6 Dec

15:30 - 10:00LAX Los Angeles-LHR London Heathrow

10h 30mdirect

12:25 - 15:45LHR London Heathrow-LAX Los Angeles

11h 20mdirect

£562British Airways

Sun, 11 Oct - Tue, 27 Oct

16:40 - 17:45LAX Los Angeles-LHR London Heathrow

17h 05m1 stop Lisbon Humberto Delgado

06:00 - 16:15LHR London Heathrow-LAX Los Angeles

17h 15m1 stop Lisbon Humberto Delgado

£564TAP AIR PORTUGAL

Sun, 11 Oct - Tue, 27 Oct

16:40 - 17:45LAX Los Angeles-LHR London Heathrow

17h 05m1 stop Lisbon Humberto Delgado

06:00 - 16:15LHR London Heathrow-LAX Los Angeles

17h 15m1 stop Lisbon Humberto Delgado

£567TAP AIR PORTUGAL

Sun, 21 Feb - Sat, 6 Mar

15:30 - 10:00LAX Los Angeles-LHR London Heathrow

10h 30mdirect

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

11h 20mdirect

£573British Airways

Wed, 13 Jan - Sat, 23 Jan

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

10h 40mdirect

19:40 - 16:40LHR London Heathrow-LAX Los Angeles

29h 00m1 stop Madrid Barajas

£574Iberia

Recent last minute flight deals from California to Heathrow

Tue, 8 Sep - Thu, 17 Sep

10:20 - 14:15LAX Los Angeles-LHR London Heathrow

19h 55m2 stops Casablanca Mohamed V Paris Orly

15:00 - 08:20LHR London Heathrow-LAX Los Angeles

25h 20m2 stops Paris Orly Casablanca Mohamed V

£602Multiple Airlines

Tue, 8 Sep - Tue, 15 Sep

06:00 - 06:30LAX Los Angeles-LHR London Heathrow

16h 30m1 stop Boston Logan Intl

11:55 - 23:53LHR London Heathrow-LAX Los Angeles

19h 58m1 stop New York John F Kennedy Intl

£607JetBlue

Tue, 8 Sep - Tue, 15 Sep

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

13h 10m1 stop Dublin

12:00 - 18:25LHR London Heathrow-LAX Los Angeles

14h 25m1 stop Dublin

£657British Airways

Wed, 9 Sep - Tue, 29 Sep

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

13h 10m1 stop Dublin

12:00 - 18:25LHR London Heathrow-LAX Los Angeles

14h 25m1 stop Dublin

£657British Airways

Tue, 8 Sep - Tue, 22 Sep

16:45 - 18:50LAX Los Angeles-LHR London Heathrow

18h 05m1 stop Lisbon Humberto Delgado

06:00 - 14:45LHR London Heathrow-LAX Los Angeles

16h 45m1 stop Lisbon Humberto Delgado

£677TAP AIR PORTUGAL

Tue, 8 Sep - Tue, 15 Sep

16:45 - 22:55LAX Los Angeles-LHR London Heathrow

22h 10m1 stop Lisbon Humberto Delgado

06:00 - 14:45LHR London Heathrow-LAX Los Angeles

16h 45m1 stop Lisbon Humberto Delgado

£705TAP AIR PORTUGAL

Mon, 7 Sep - Mon, 14 Sep

17:30 - 15:40LAX Los Angeles-LHR London Heathrow

14h 10m1 stop Munich Franz Josef Strauss

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

16h 20m1 stop Munich Franz Josef Strauss

£706Lufthansa

Sat, 12 Sep - Sat, 19 Sep

13:36 - 13:05SAN San Diego-LHR London Heathrow

15h 29m2 stops Salt Lake City Minneapolis St Paul

08:40 - 19:04LHR London Heathrow-SAN San Diego

18h 24m2 stops Amsterdam Schiphol Los Angeles

£720Delta

Sat, 12 Sep - Sat, 19 Sep

13:36 - 13:05SAN San Diego-LHR London Heathrow

15h 29m2 stops Salt Lake City Minneapolis St Paul

08:55 - 19:04LHR London Heathrow-SAN San Diego

18h 09m2 stops Paris Charles de Gaulle Los Angeles

£725Delta

Mon, 7 Sep - Mon, 14 Sep

17:30 - 15:40LAX Los Angeles-LHR London Heathrow

14h 10m1 stop Munich Franz Josef Strauss

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

16h 20m1 stop Munich Franz Josef Strauss

£732Lufthansa

Useful Info

Low season	January
High season	July
Cheapest flight	£121

Best time to beat the crowds (27% less expensive on average)

Most popular time to fly (18% 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

Newport

Winchester

Swindon

Folkestone

Slough

Croydon

Stansted

Poole

Colchester

Chichester

Crawley

Maidstone

Salisbury

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£121 Find Cheap Flights from California to London Heathrow Airport – Compare and Save

Cheap Flights from California to Heathrow

Recent return flight deals from California to Heathrow

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Recent last minute flight deals from California to Heathrow

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

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