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 travelers 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 round-trip 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.

$237 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.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from California to Heathrow

Thu, Nov 5 - Sun, Nov 8

7:30 pm - 12:55 pm

LAX

LHR

33h 25m

2 stops

10:20 am - 5:00 pm

LHR

LAX

14h 40m

1 stop

$667Scandinavian Airlines

Mon, Dec 7 - Thu, Dec 10

7:30 pm - 8:55 am

LAX

LHR

29h 25m

2 stops

6:40 am - 5:00 pm

LHR

LAX

18h 20m

1 stop

$676Scandinavian Airlines

Tue, Oct 20 - Tue, Dec 1

9:00 pm - 3:25 pm

LAX

LHR

10h 25mnonstop

3:10 pm - 6:30 pm

LHR

LAX

11h 20mnonstop

$695British Airways

Tue, Aug 11 - Sun, Aug 30

4:45 pm - 8:05 pm

LAX

LHR

19h 20m

2 stops

8:50 pm - 2:45 pm

LHR

LAX

25h 55m

2 stops

$715Multiple Airlines

Sun, Sep 20 - Tue, Dec 1

3:50 pm - 10:15 am

LAX

LHR

10h 25mnonstop

12:30 pm - 3:50 pm

LHR

LAX

11h 20mnonstop

$716British Airways

Sun, Oct 18 - Wed, Oct 21

6:00 pm - 1:20 pm

LAS

LHR

35h 20m

1 stop

6:00 am - 3:50 pm

LHR

LAS

17h 50m

1 stop

$753Multiple Airlines

Sun, Oct 18 - Wed, Oct 21

11:25 pm - 9:00 pm

LAS

LHR

37h 35m

2 stops

5:55 pm - 10:23 pm

LHR

LAS

36h 28m

2 stops

$754Air Canada

Mon, Oct 19 - Wed, Oct 21

6:50 am - 11:50 am

LAS

LHR

21h 00m

2 stops

8:40 am - 10:23 pm

LHR

LAS

21h 43m

2 stops

$757Air Canada

Tue, Sep 8 - Mon, Oct 5

7:20 pm - 10:55 pm

SFO

LHR

19h 35m

2 stops

6:45 pm - 1:35 pm

LHR

SFO

26h 50m

1 stop

$762TAP AIR PORTUGAL

Thu, Sep 17 - Thu, Oct 1

4:30 pm - 10:05 pm

SFO

LHR

21h 35m

1 stop

6:00 am - 2:30 pm

LHR

SFO

16h 30m

1 stop

$764TAP AIR PORTUGAL

Useful Info

Low season	January
High season	July
Cheapest flight	$237

Best time to beat the crowds with an average 18% drop in price.

Most popular time to fly with an average 29% increase in price.

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

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 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 travelers 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 round-trip 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.

Everything you need to know for your flight to Heathrow

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London Heathrow Airport (LHR)

LHR

$237 Find Cheap Flights from California to London Heathrow Airport - Compare and Save

Cheap Flights from California to Heathrow

Recent round-trip flight deals from California to Heathrow

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

FAQs for booking California to London Heathrow Airport flights

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 rental

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Flights to other popular destinations

Flights from domestic origins to California

Choose which airport to fly into in London

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