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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

£201 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, 21 Sep - Wed, 23 Sep

12:44 - 09:40

BUR

LHR

12h 56m

1 stop

08:40 - 20:08

LHR

BUR

19h 28m

2 stops

£560United Airlines

Sun, 8 Nov - Wed, 11 Nov

20:00 - 11:15

BUR

LHR

31h 15m

1 stop

09:00 - 22:08

LHR

BUR

21h 08m

2 stops

£561United Airlines

Thu, 1 Oct - Tue, 24 Nov

17:45 - 15:35

SJC

LHR

13h 50m

1 stop

20:25 - 20:58

LHR

SJC

32h 33m

2 stops

£582Virgin Atlantic

Thu, 1 Oct - Tue, 24 Nov

18:10 - 20:10

SJC

LHR

18h 00m

2 stops

11:30 - 21:47

LHR

SJC

18h 17m

2 stops

£587Virgin Atlantic

Mon, 26 Oct - Mon, 9 Nov

12:25 - 11:50

SNA

LHR

16h 25m

1 stop

08:20 - 15:56

LHR

SNA

15h 36m

1 stop

£617Multiple Airlines

Tue, 20 Oct - Wed, 28 Oct

13:15 - 13:20

SNA

LHR

16h 05m

1 stop

13:50 - 21:51

LHR

SNA

15h 01m

1 stop

£618Multiple Airlines

Wed, 30 Sep - Wed, 7 Oct

11:34 - 10:50

SNA

LHR

15h 16m

1 stop

11:00 - 21:51

LHR

SNA

18h 51m

1 stop

£621British Airways

Sun, 4 Oct - Sat, 31 Oct

13:05 - 10:30

ONT

LHR

13h 25m

1 stop

10:15 - 18:57

LHR

ONT

15h 42m

1 stop

£625British Airways

Fri, 18 Sep - Mon, 21 Sep

13:15 - 10:00

SNA

LHR

36h 45m

2 stops

08:40 - 12:18

LHR

SNA

35h 38m

2 stops

£628Air Canada

Wed, 7 Oct - Wed, 21 Oct

13:15 - 13:20

SNA

LHR

16h 05m

1 stop

08:40 - 12:18

LHR

SNA

35h 38m

2 stops

£642Air Canada

Useful Info

Low season	January
High season	July
Cheapest flight	£201

Best time to beat the crowds (15% less expensive on average)

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

Flight from Las Vegas to London Heathrow Airport

Verified travelerFlew with British Airways

SFO

LHR

Dec 2025

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

Verified travelerFlew with Iberia

SFO

LHR

Jan 2026

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

GeraldFlew with Virgin Atlantic

SFO

LHR

Jun 2025

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

Verified travelerFlew with American Airlines

SFO

LHR

Jun 2025

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

ValerieFlew with British Airways

LAX

LHR

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

SFO

LHR

Apr 2025

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

Verified travelerFlew with Iberia

LAX

LHR

Jan 2025

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

WeiFlew with British Airways

LAX

LHR

Sept 2024

Connection takes long, Make sure you plan enough time.

TapanFlew with British Airways

SFO

LHR

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

LAX

LHR

Mar 2024

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

MichelleFlew with British Airways

LAX

LHR

May 2024

Make sure you separate your luggage tags from your tickets

ShaunaFlew with British Airways

LAX

LHR

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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Eastbourne

Hounslow

Luton

Southend-on-Sea

Northampton

Swindon

Slough

Winchester

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London Heathrow Airport (LHR)

£201 Find Cheap Flights from California to London Heathrow Airport

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

Cheap Flights from California to Heathrow

Recent return flight deals from California to Heathrow

Recent one-way flight deals from California to Heathrow

Recent last minute flight deals from California to Heathrow

Recent direct flight deals from California to Heathrow

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

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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