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>

£154 CHEAP FLIGHTS from California to London Heathrow (LHR)

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

...and more

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Cheapest return fare

£437

Overall average: £769

Lufthansa

Tue 6/1Tue 13/1

SMF - LHR • 1 stop

Cheapest direct flights

£463

Typical prices: £505-£659

Virgin Atlantic

Mon 5/1Sun 18/1

LAS - LHR • Direct

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KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to Heathrow!

Flight Deals

Cheap Flights from California to Heathrow

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from California to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Round-trip

One-way

Last minute

Direct

Recent return flight deals from California to Heathrow

Tue, 6 Jan - Tue, 13 Jan

10:59 - 05:55SMF-LHR

34h 56m1 stop

07:40 - 17:14LHR-SMF

17h 34m2 stops

£437Lufthansa

Find Deal

Mon, 2 Mar - Sun, 8 Mar

14:59 - 21:40SMF-LHR

22h 41m2 stops

18:40 - 22:17LHR-SMF

34h 37m2 stops

£439Scandinavian Airlines

Find Deal

Mon, 23 Feb - Fri, 27 Feb

15:36 - 21:40SJC-LHR

22h 04m2 stops

06:40 - 21:56LHR-SJC

23h 16m2 stops

£448Scandinavian Airlines

Find Deal

Mon, 5 Jan - Tue, 13 Jan

18:00 - 11:50SFO-LHR

33h 50m1 stop

07:40 - 19:35LHR-SFO

19h 55m1 stop

£457Multiple Airlines

Find Deal

Tue, 9 Dec - Wed, 24 Dec

13:20 - 11:50SFO-LHR

14h 30m1 stop

11:10 - 19:35LHR-SFO

16h 25m1 stop

£459United Airlines

Find Deal

Mon, 12 Jan - Mon, 19 Jan

11:53 - 09:40LAS-LHR

13h 47m1 stop

12:05 - 21:57LHR-LAS

17h 52m1 stop

£459Multiple Airlines

Find Deal

Mon, 26 Jan - Sat, 7 Feb

08:30 - 06:40LAS-LHR

14h 10m1 stop

12:05 - 21:57LHR-LAS

17h 52m1 stop

£462Austrian Airlines

Find Deal

Fri, 27 Feb - Thu, 12 Mar

06:00 - 08:15SJC-LHR

18h 15m1 stop

11:55 - 21:30LHR-SJC

16h 35m1 stop

£463Iberia

Find Deal

Tue, 13 Jan - Sat, 31 Jan

16:00 - 07:30SJC-LHR

31h 30m2 stops

06:35 - 20:56LHR-SJC

22h 21m2 stops

£469United Airlines

Find Deal

Wed, 11 Feb - Wed, 25 Feb

15:30 - 10:00LAX-LHR

10h 30mdirect

15:10 - 18:30LHR-LAX

11h 20mdirect

£476Iberia

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	£154

Best time to beat the crowds (7% less expensive on average)

Most popular time to fly (13% more expensive on average)

Flight from Las Vegas to London Heathrow Airport

GeraldFlew with Virgin AtlanticSFO-LHRJun 2025

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

Verified travelerFlew with American AirlinesSFO-LHRJun 2025

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

PallaviFlew with British AirwaysSFO-LHRApr 2025

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

Verified travelerFlew with IberiaLAX-LHRJan 2025

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

WeiFlew with British AirwaysLAX-LHRSept 2024

Connection takes long, Make sure you plan enough time.

TapanFlew with British AirwaysSFO-LHROct 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 AirwaysLAX-LHRMar 2024

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

MichelleFlew with British AirwaysLAX-LHRMay 2024

Make sure you separate your luggage tags from your tickets

ShaunaFlew with British AirwaysLAX-LHRDec 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.

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Hounslow

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Northampton

Swindon

Slough

Winchester

Croydon

Stansted

Poole

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Chichester

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Everything you need to know for your flight to Heathrow

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London Heathrow Airport (LHR)

£154 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

Everything you should know

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

FAQs for booking California to London Heathrow Airport flights

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.

Travelling to a place near Heathrow?

Everything you need to know for your flight to Heathrow

Information on your arrival and departure airports

Cabin class types available on flights to Heathrow

Complete your trip to Heathrow with a hotel stay or car hire

Find direct flights for Heathrow

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Flights from domestic origins to California

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