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>

$303 CHEAP FLIGHTS from California to London

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

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Cheap Flights from California to London

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, Apr 13 - Wed, Apr 29

5:30 pm - 3:40 pm

LAX

LHR

14h 10m

1 stop

7:25 am - 3:15 pm

LHR

LAX

15h 50m

1 stop

$598Lufthansa

Wed, Mar 18 - Tue, Mar 24

8:15 am - 7:05 pm

LAX

LGW

27h 50m

2 stops

5:20 pm - 10:00 pm

LGW

LAX

35h 40m

3 stops

$598Multiple Airlines

Tue, Apr 14 - Thu, Apr 23

7:10 pm - 12:10 am

LAX

STN

21h 00m

1 stop

9:55 am - 4:50 pm

STN

LAX

14h 55m

1 stop

$598Multiple Airlines

Mon, Mar 23 - Thu, Apr 2

5:40 pm - 4:25 pm

SFO

LHR

15h 45m

2 stops

6:40 am - 2:40 pm

LHR

SFO

16h 00m

1 stop

$600Scandinavian Airlines

Thu, Apr 16 - Thu, May 14

7:55 pm - 9:45 am

SFO

LGW

29h 50m

1 stop

9:20 pm - 4:50 pm

LGW

SFO

27h 30m

2 stops

$601TAP AIR PORTUGAL

Sun, Aug 16 - Thu, Aug 27

4:40 pm - 9:45 am

LAX

LGW

33h 05m

1 stop

9:20 pm - 2:35 pm

LGW

LAX

25h 15m

2 stops

$601TAP AIR PORTUGAL

Sun, Mar 1 - Tue, Mar 10

6:20 pm - 3:35 pm

SFO

LHR

13h 15m

1 stop

8:50 am - 4:35 pm

LHR

SFO

14h 45m

1 stop

$601Aer Lingus

Sun, Mar 8 - Thu, Mar 19

5:40 pm - 4:00 pm

SFO

LHR

15h 20m

1 stop

3:35 pm - 3:35 pm

LHR

SFO

31h 00m

2 stops

$602Scandinavian Airlines

Tue, Mar 10 - Wed, Mar 18

1:25 pm - 4:20 pm

LAX

LHR

19h 55m

2 stops

9:00 am - 5:35 pm

LHR

LAX

15h 35m

1 stop

$602SWISS

Mon, Mar 16 - Mon, Mar 23

8:10 pm - 5:50 pm

LAX

LHR

14h 40m

1 stop

8:05 pm - 5:35 pm

LHR

LAX

28h 30m

1 stop

$605SWISS

Useful Info

Low season	January
High season	June
Cheapest flight	$303

Best time to beat the crowds with an average 6% drop in price.

Most popular time to fly with an average 39% increase in price.

Flight from San Diego 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

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

Watford

Crawley

Guildford

Eastbourne

Colchester

St. Albans

Kingston upon Thames

Bedford

Ipswich

Twickenham

Barnet

Maidenhead

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 $1,250

Premium Economy Class flights to Londonfrom $1,254

Economy Class flights to Londonfrom $485

$303 Find Cheap Flights from California to London

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

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