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>

$218 CHEAP FLIGHTS from California to London

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

...and more

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

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Cheapest round-trip

$586

Overall average: $569

Iberia

Mon 1/19Tue 1/27

SFO - LGW • 2 stops

Cheapest non-stop

$586

Typical prices: $643-$770

Virgin Atlantic

Mon 1/26Mon 2/16

SFO - LHR • Non-stop

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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, Jan 19 - Tue, Jan 27

12:46 am - 10:50 amSFO-LGW

26h 04m2 stops

11:45 am - 12:47 amLGW-SFO

21h 02m2 stops

$586Iberia

Find Deal

Wed, Feb 18 - Mon, Feb 23

9:25 pm - 7:35 pmSFO-LHR

14h 10m1 stop

11:10 am - 7:35 pmLHR-SFO

16h 25m1 stop

$586Lufthansa

Find Deal

Tue, Dec 2 - Tue, Dec 16

6:40 am - 12:50 pmONT-LHR

22h 10m1 stop

2:45 pm - 10:47 pmLHR-ONT

16h 02m1 stop

$587Virgin Atlantic

Find Deal

Wed, Mar 4 - Tue, Mar 10

4:35 pm - 9:50 amSFO-LGW

33h 15m1 stop

4:35 pm - 3:30 pmLGW-SFO

29h 55m1 stop

$587TAP AIR PORTUGAL

Find Deal

Mon, Dec 1 - Thu, Dec 11

1:20 pm - 10:00 amSFO-LHR

12h 40m1 stop

11:40 am - 2:40 pmLHR-SFO

11h 00mnonstop

$587Delta

Find Deal

Tue, Dec 2 - Tue, Dec 16

6:40 am - 12:50 pmONT-LHR

22h 10m1 stop

2:45 pm - 10:47 pmLHR-ONT

16h 02m1 stop

$588Virgin Atlantic

Find Deal

Mon, Nov 24 - Tue, Dec 2

8:25 am - 11:20 pmSFO-LGW

30h 55m3 stops

4:10 pm - 12:40 pmLGW-SFO

28h 30m2 stops

$588Multiple Airlines

Find Deal

Mon, Dec 8 - Sun, Dec 14

4:35 pm - 3:45 pmSFO-LGW

15h 10m1 stop

9:25 pm - 2:35 pmLGW-SFO

25h 10m2 stops

$591TAP AIR PORTUGAL

Find Deal

Mon, Nov 24 - Tue, Dec 9

1:20 pm - 10:00 amSFO-LHR

12h 40m1 stop

6:30 am - 3:57 pmLHR-SFO

17h 27m2 stops

$591Delta

Find Deal

Fri, Dec 5 - Wed, Dec 10

12:10 pm - 7:25 pmSFO-LGW

23h 15m1 stop

7:55 am - 8:10 pmLGW-SFO

20h 15m1 stop

$593Multiple Airlines

Find Deal

Useful Info

Low season	January
High season	June
Cheapest flight	$218

Best time to beat the crowds with an average 11% drop in price.

Most popular time to fly with an average 38% increase in price.

Flight from Los Angeles 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-LHRSep 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?
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

Guildford

Watford

Kingston upon Thames

Eastbourne

Colchester

Ipswich

St. Albans

Twickenham

Harrow

Bedford

Hastings

Worthing

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 $589

Economy Class flights to Londonfrom $538

$218 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