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.

$222 CHEAP FLIGHTS from California to London

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Cheap Flights from California to London

Cheap flights from California to London with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

One-way

Last minute

Thu, Nov 5 - Fri, Nov 13

4:40 pm - 5:35 amSFO San Francisco-YXU London

9h 55m1 stop Calgary

6:40 am - 3:50 pmYXU London-SFO San Francisco

12h 10m1 stop Calgary

$440WestJet

Sat, Nov 14 - Sat, Nov 21

8:25 am - 8:27 pmSFO San Francisco-YXU London

9h 02m1 stop Toronto Pearson Intl

9:05 pm - 11:10 amYXU London-SFO San Francisco

17h 05m1 stop Toronto Pearson Intl

$464Air Canada

Sat, Nov 14 - Sat, Nov 21

8:25 am - 8:27 pmSFO San Francisco-YXU London

9h 02m1 stop Toronto Pearson Intl

9:05 pm - 1:51 pmYXU London-SFO San Francisco

19h 46m2 stops Toronto Pearson Intl Vancouver Intl

$469Air Canada

Sat, Nov 14 - Sat, Nov 21

8:25 am - 8:27 pmSFO San Francisco-YXU London

9h 02m1 stop Toronto Pearson Intl

9:05 pm - 11:10 amYXU London-SFO San Francisco

17h 05m1 stop Toronto Pearson Intl

$510Air Canada

Thu, Nov 5 - Fri, Nov 13

4:40 pm - 5:35 amSFO San Francisco-YXU London

9h 55m1 stop Calgary

6:40 am - 8:19 amYXU London-SFO San Francisco

28h 39m2 stops Calgary Las Vegas Harry Reid Intl

$511Multiple Airlines

Thu, Nov 5 - Fri, Nov 13

4:40 pm - 5:35 amSFO San Francisco-YXU London

9h 55m1 stop Calgary

6:40 am - 8:19 amYXU London-SFO San Francisco

28h 39m3 stops Calgary Los Angeles Las Vegas Harry Reid Intl

$512Multiple Airlines

Thu, Nov 26 - Thu, Dec 3

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

9h 35m1 stop Calgary

6:40 am - 7:18 amYXU London-LAX Los Angeles

27h 38m3 stops Calgary Edmonton Las Vegas Harry Reid Intl

$518Multiple Airlines

Thu, Dec 17 - Mon, Dec 28

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

9h 35m1 stop Calgary

6:40 am - 9:20 pmYXU London-LAX Los Angeles

17h 40m1 stop Calgary

$864WestJet

Thu, Dec 17 - Wed, Dec 30

6:35 pm - 5:35 amLAX Los Angeles-YXU London

32h 00m2 stops Edmonton Calgary

6:40 am - 5:45 pmYXU London-LAX Los Angeles

38h 05m2 stops Calgary Edmonton

$962WestJet

Wed, Dec 16 - Mon, Dec 28

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

9h 35m1 stop Calgary

6:40 am - 11:15 amYXU London-LAX Los Angeles

31h 35m1 stop Calgary

$1,002WestJet

Tue, Oct 20 - Sat, Oct 24

6:05 pm - 5:20 amLAX Los Angeles-YXU London

8h 15m1 stop Calgary

6:10 am - 12:25 pmYXU London-LAX Los Angeles

9h 15m1 stop Calgary

$970WestJet

Tue, Oct 20 - Sat, Oct 24

6:05 pm - 5:20 amLAX Los Angeles-YXU London

8h 15m1 stop Calgary

6:10 am - 6:20 pmYXU London-LAX Los Angeles

15h 10m2 stops Calgary Edmonton

$992WestJet

Fri, Oct 16 - Wed, Oct 28

6:05 pm - 5:20 amLAX Los Angeles-YXU London

8h 15m1 stop Calgary

7:40 am - 6:45 pmYXU London-LAX Los Angeles

38h 05m2 stops Calgary Edmonton

$1,144WestJet

Tue, Oct 20 - Sat, Oct 24

5:05 pm - 8:25 amLAX Los Angeles-YXU London

12h 20m2 stops Vancouver Intl Toronto Pearson Intl

9:05 am - 5:37 pmYXU London-LAX Los Angeles

11h 32m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$1,156Air Canada

Sat, Oct 17 - Sat, Oct 24

12:10 pm - 5:20 amLAX Los Angeles-YXU London

14h 10m2 stops Vancouver Intl Calgary

6:10 am - 12:25 pmYXU London-LAX Los Angeles

9h 15m1 stop Calgary

$1,172WestJet

Tue, Oct 20 - Thu, Oct 22

8:30 am - 7:40 pmSFO San Francisco-YXU London

8h 10m1 stop Toronto Pearson Intl

3:30 pm - 8:59 pmYXU London-SFO San Francisco

8h 29m1 stop Toronto Pearson Intl

$1,182United Airlines

Tue, Oct 20 - Thu, Oct 22

6:40 am - 7:40 pmSFO San Francisco-YXU London

10h 00m2 stops Vancouver Intl Toronto Pearson Intl

3:30 pm - 8:59 pmYXU London-SFO San Francisco

8h 29m1 stop Toronto Pearson Intl

$1,187Air Canada

Tue, Oct 20 - Thu, Oct 22

4:30 pm - 8:25 amSFO San Francisco-YXU London

12h 55m2 stops Vancouver Intl Toronto Pearson Intl

3:30 pm - 11:20 pmYXU London-SFO San Francisco

10h 50m2 stops Toronto Pearson Intl Vancouver Intl

$1,192Air Canada

Sat, Oct 17 - Sat, Oct 24

7:12 pm - 5:20 amLAX Los Angeles-YXU London

31h 08m3 stops Las Vegas Harry Reid Intl Seattle/Tacoma Intl Calgary

6:10 am - 9:01 pmYXU London-LAX Los Angeles

17h 51m2 stops Calgary San Francisco

$1,285Multiple Airlines

Tue, Oct 20 - Sat, Oct 24

7:00 am - 7:40 pmLAX Los Angeles-YXU London

9h 40m2 stops Chicago O'Hare Intl Toronto Pearson Intl

3:30 pm - 11:33 pmYXU London-LAX Los Angeles

11h 03m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$1,286United Airlines

Cheapest flight	$222

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.