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.

$236 CHEAP FLIGHTS from California 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

Recent round-trip flight deals from California to London

Fri, Nov 13 - Sun, Nov 22

6:30 am - 9:52 pmSFO San Francisco-YXU London

12h 22m2 stops Vancouver Intl Toronto Pearson Intl

5:30 am - 11:10 amYXU London-SFO San Francisco

8h 40m1 stop Toronto Pearson Intl

$460Air Canada

Wed, Nov 18 - Wed, Nov 25

12:00 pm - 8:32 amSFO San Francisco-YXU London

17h 32m1 stop Toronto Pearson Intl

5:30 am - 1:10 pmYXU London-SFO San Francisco

10h 40m1 stop Toronto Pearson Intl

$479Air Canada

Thu, Oct 29 - Wed, Nov 4

7:40 am - 7:52 pmLAX Los Angeles-YXU London

9h 12m1 stop Toronto Pearson Intl

9:15 am - 4:39 pmYXU London-LAX Los Angeles

10h 24m1 stop Toronto Pearson Intl

$504Air Canada

Wed, Dec 9 - Sun, Dec 13

6:00 pm - 8:37 amLAX Los Angeles-YXU London

11h 37m2 stops Vancouver Intl Toronto Pearson Intl

5:30 am - 10:34 amYXU London-LAX Los Angeles

8h 04m1 stop Toronto Pearson Intl

$510Air Canada

Tue, Oct 20 - Thu, Oct 22

6:00 am - 5:20 amSFO San Francisco-YXU London

20h 20m1 stop Calgary

6:10 am - 12:00 pmYXU London-SFO San Francisco

8h 50m1 stop Calgary

$619WestJet

Tue, Oct 20 - Thu, Oct 22

1:00 pm - 5:20 amSFO San Francisco-YXU London

13h 20m1 stop Calgary

6:10 am - 9:55 pmYXU London-SFO San Francisco

18h 45m1 stop Calgary

$649WestJet

Wed, Nov 18 - Wed, Nov 25

3:05 pm - 5:00 pmSFO San Francisco-YXU London

22h 55m3 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson Orlando

6:40 am - 7:49 amYXU London-SFO San Francisco

28h 09m2 stops Calgary Las Vegas Harry Reid Intl

$659Multiple Airlines

Tue, Nov 17 - Tue, Nov 24

5:00 pm - 5:35 amPSP Palm Springs-YXU London

9h 35m1 stop Calgary

6:40 am - 12:55 pmYXU London-PSP Palm Springs

9h 15m1 stop Calgary

$662WestJet

Wed, Nov 18 - Wed, Nov 25

3:05 pm - 5:00 pmSFO San Francisco-YXU London

22h 55m3 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson Orlando

6:40 am - 7:49 amYXU London-SFO San Francisco

28h 09m3 stops Calgary Edmonton Las Vegas Harry Reid Intl

$664Multiple Airlines

Wed, Nov 18 - Thu, Nov 26

12:55 am - 2:42 pmSFO San Francisco-YXU London

10h 47m2 stops Chicago O'Hare Intl Toronto Pearson Intl

9:15 am - 3:40 pmYXU London-SFO San Francisco

9h 25m1 stop Toronto Pearson Intl

$680United Airlines

Useful Info

Cheapest flight	$236

Flight from Los Angeles 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.