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

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. 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?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from California is likely to change within 7 days, so travelers 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?

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

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 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>

$366 CHEAP FLIGHTS from California to London

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

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$600

TAP AIR PORTUGAL

Mon 2/16Fri 2/27

SFO - LGW • 1 stop

Cheapest non-stop

$606

Typical prices: $650-$830

Virgin Atlantic

Sun 1/11Tue 1/27

SFO - LHR • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to London!

Flight Deals

Cheap Flights from California to London

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from California to London 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 round-trip flight deals from California to London

Mon, Feb 16 - Fri, Feb 27

4:35 pm - 3:45 pm

SFO

LGW

15h 10m1 stop

10:45 am - 2:45 pm

LGW

SFO

36h 00m2 stops

$600TAP AIR PORTUGAL

Wed, Apr 15 - Fri, May 1

1:50 pm - 11:45 am

SFO

LHR

13h 55m1 stop

8:40 am - 4:15 pm

LHR

SFO

15h 35m1 stop

$600Multiple Airlines

Thu, Jan 15 - Tue, Feb 3

4:40 pm - 4:00 pm

SFO

LHR

15h 20m1 stop

5:30 pm - 2:35 pm

LHR

SFO

53h 05m2 stops

$601Scandinavian Airlines

Mon, Feb 16 - Mon, Feb 23

7:25 pm - 5:50 pm

SFO

LGW

14h 25m1 stop

6:40 pm - 4:30 pm

LGW

SFO

29h 50m1 stop

$602SWISS

Wed, Apr 15 - Tue, May 12

7:35 pm - 5:50 pm

SFO

LGW

14h 15m1 stop

9:25 am - 4:25 pm

LGW

SFO

15h 00m1 stop

$603SWISS

Wed, Jan 21 - Mon, Jan 26

9:25 pm - 7:35 pm

SFO

LHR

14h 10m1 stop

8:15 pm - 2:50 pm

LHR

SFO

26h 35m1 stop

$603Lufthansa

Tue, Mar 17 - Sat, Apr 4

5:40 pm - 4:00 pm

SFO

LHR

15h 20m1 stop

3:35 pm - 2:40 pm

LHR

SFO

31h 05m2 stops

$604Scandinavian Airlines

Fri, May 8 - Mon, May 18

8:20 pm - 9:45 am

SFO

LGW

29h 25m1 stop

9:15 pm - 2:35 pm

LGW

SFO

25h 20m2 stops

$605TAP AIR PORTUGAL

Sat, Mar 14 - Thu, Mar 19

8:35 pm - 4:50 pm

LAS

LHR

13h 15m1 stop

12:10 pm - 6:50 pm

LHR

LAS

13h 40m1 stop

$612Aer Lingus

Tue, Mar 10 - Tue, Mar 17

1:11 pm - 3:50 pm

LAS

LHR

19h 39m2 stops

7:40 am - 7:17 pm

LHR

LAS

18h 37m2 stops

$617Lufthansa

Useful Info

Low season	January
High season	June
Cheapest flight	$366

Best time to beat the crowds with an average 9% drop in price.

Most popular time to fly with an average 37% increase in price.

Flight from Los Angeles 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

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

Sep 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?
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.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from California is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from California to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London 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?
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 from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Hounslow

Slough

Wembley

Hayes

Richmond

Luton

Ilford

Crawley

Watford

Guildford

Eastbourne

Kingston upon Thames

Colchester

St. Albans

Ipswich

Bedford

Twickenham

Barnet

Hastings

Harrow

Everything you need to know for your flight to London

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to California

First Class flights to Londonfrom $4,886

Business Class flights to Londonfrom $1,513

Prem Econ Class flights to Londonfrom $1,326

Economy Class flights to Londonfrom $486

$354 Find Cheap Flights from California to London

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

Everything you should know

Cheap Flights from California to London

Recent round-trip flight deals from California to London

Recent one-way flight deals from California to London

Recent last minute flight deals from California to London

Recent direct flight deals from California to London

Good to know

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

FAQs for booking flights from California to London

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

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.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from California is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from California to London?

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

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

Traveling to a place near London?

Everything you need to know for your flight to London

Cabin class types available on flights to California

Complete your trip to London with a hotel stay or car rental

Find direct flights for London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London

Find deals for your return flight