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.

$161 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

Thu, Dec 10 - Mon, Dec 14

5:00 pm - 5:35 amLAX Los Angeles Los Angeles-YXU London

9h 35m1 stop Calgary

6:40 am - 4:10 pmYXU London-LAX Los Angeles Los Angeles

12h 30m1 stop Calgary

$359WestJet

Thu, Oct 22 - Thu, Oct 29

6:00 am - 4:45 pmSFO San Francisco-YXU London

7h 45m1 stop Calgary

7:40 am - 4:50 pmYXU London-SFO San Francisco

12h 10m1 stop Calgary

$361WestJet

Tue, Oct 13 - Mon, Oct 26

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

13h 20m1 stop Calgary

7:40 am - 12:51 pmYXU London-SFO San Francisco

32h 11m2 stops Calgary San Diego

$375Multiple Airlines

Wed, Nov 18 - Mon, Nov 23

4:40 pm - 8:37 amSFO San Francisco-YXU London

12h 57m1 stop Toronto Pearson Intl

3:25 pm - 9:30 pmYXU London-SFO San Francisco

9h 05m1 stop Toronto Pearson Intl

$378Air Canada

Tue, Oct 13 - Mon, Oct 26

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

20h 20m1 stop Calgary

7:40 am - 4:50 pmYXU London-SFO San Francisco

12h 10m1 stop Calgary

$382WestJet

Thu, Dec 10 - Mon, Dec 14

7:40 am - 9:47 pmLAX Los Angeles Los Angeles-YXU London

11h 07m1 stop Toronto Pearson Intl

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

8h 04m1 stop Toronto Pearson Intl

$384Air Canada

Wed, Nov 18 - Mon, Nov 23

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

12h 22m2 stops Vancouver Intl Toronto Pearson Intl

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

9h 25m1 stop Toronto Pearson Intl

$386Air 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

$393WestJet

Thu, Dec 10 - Mon, Dec 14

1:30 pm - 5:35 amLAX Los Angeles Los Angeles-YXU London

13h 05m2 stops Las Vegas Harry Reid Intl Calgary

6:40 am - 4:10 pmYXU London-LAX Los Angeles Los Angeles

12h 30m1 stop Calgary

$405Multiple Airlines

Thu, Oct 22 - Thu, Oct 29

6:00 am - 4:45 pmSFO San Francisco-YXU London

7h 45m1 stop Calgary

7:40 am - 8:19 amYXU London-SFO San Francisco

27h 39m2 stops Calgary Las Vegas Harry Reid Intl

$435Multiple Airlines

Useful Info

Cheapest flight	$161

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.