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.

$218 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

Tue, Oct 6 - Thu, Oct 22

3:30 pm - 5:20 amSAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 am - 2:10 pmYXU London-SAN San Diego

11h 00m1 stop Calgary

$435WestJet

Thu, Oct 8 - Fri, Oct 23

3:30 pm - 5:20 amSAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 am - 2:10 pmYXU London-SAN San Diego

11h 00m1 stop Calgary

$435WestJet

Fri, Oct 9 - Thu, Oct 22

3:30 pm - 5:20 amSAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 am - 2:10 pmYXU London-SAN San Diego

11h 00m1 stop Calgary

$435WestJet

Thu, Oct 8 - Thu, Oct 22

3:30 pm - 5:20 amSAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 am - 2:10 pmYXU London-SAN San Diego

11h 00m1 stop Calgary

$435WestJet

Fri, Sep 25 - Fri, Oct 2

1:10 pm - 5:20 amSFO San Francisco-YXU London

13h 10m2 stops Phoenix Sky Harbor Intl Calgary

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

18h 45m1 stop Calgary

$474Multiple Airlines

Wed, Sep 16 - Wed, Sep 23

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

8h 15m1 stop Calgary

6:10 am - 5:45 pmYXU London-LAX Los Angeles

38h 35m2 stops Calgary Phoenix Sky Harbor Intl

$474Multiple Airlines

Wed, Oct 7 - Thu, Oct 22

7:04 pm - 5:20 amSAN San Diego-YXU London

31h 16m2 stops Phoenix Sky Harbor Intl Calgary

6:10 am - 2:10 pmYXU London-SAN San Diego

11h 00m1 stop Calgary

$483Multiple Airlines

Mon, Sep 21 - Fri, Sep 25

10:45 pm - 9:20 amSFO San Francisco-YXU London

7h 35m1 stop Toronto Pearson Intl

3:30 pm - 9:49 pmYXU London-SFO San Francisco

9h 19m1 stop Toronto Pearson Intl

$574Air Canada

Mon, Sep 21 - Fri, Sep 25

8:10 am - 9:40 pmSFO San Francisco-YXU London

10h 30m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

10:05 am - 3:24 pmYXU London-SFO San Francisco

8h 19m1 stop Toronto Pearson Intl

$582Air Canada

Mon, Sep 21 - Fri, Sep 25

8:10 am - 9:40 pmSFO San Francisco-YXU London

10h 30m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

10:05 am - 3:24 pmYXU London-SFO San Francisco

8h 19m1 stop Toronto Pearson Intl

$583Air Canada

Recent last minute flight deals from California to London

Sun, Aug 16 - Mon, Aug 24

11:40 am - 9:40 pmSFO San Francisco-YXU London

7h 00m1 stop Toronto Pearson Intl

5:40 am - 10:45 amYXU London-SFO San Francisco

8h 05m1 stop Toronto Pearson Intl

$1,545Air Canada

Mon, Aug 17 - Sun, Aug 23

11:40 am - 9:40 pmSFO San Francisco-YXU London

7h 00m1 stop Toronto Pearson Intl

5:40 am - 10:45 amYXU London-SFO San Francisco

8h 05m1 stop Toronto Pearson Intl

$1,545Air Canada

Sat, Aug 15 - Sat, Aug 22

11:40 am - 9:40 pmSFO San Francisco-YXU London

7h 00m1 stop Toronto Pearson Intl

5:40 am - 10:45 amYXU London-SFO San Francisco

8h 05m1 stop Toronto Pearson Intl

$1,545United Airlines

Sun, Aug 16 - Sat, Aug 22

11:40 am - 9:40 pmSFO San Francisco-YXU London

7h 00m1 stop Toronto Pearson Intl

10:05 am - 3:27 pmYXU London-SFO San Francisco

8h 22m1 stop Toronto Pearson Intl

$1,545United Airlines

Mon, Aug 17 - Sat, Aug 22

11:40 am - 9:40 pmSFO San Francisco-YXU London

7h 00m1 stop Toronto Pearson Intl

10:05 am - 3:27 pmYXU London-SFO San Francisco

8h 22m1 stop Toronto Pearson Intl

$1,545Air Canada

Mon, Aug 17 - Mon, Aug 24

10:51 pm - 9:20 amSFO San Francisco-YXU London

7h 29m1 stop Toronto Pearson Intl

5:40 am - 10:45 amYXU London-SFO San Francisco

8h 05m1 stop Toronto Pearson Intl

$1,545Air Canada

Sat, Aug 15 - Sun, Aug 23

11:40 am - 9:40 pmSFO San Francisco-YXU London

7h 00m1 stop Toronto Pearson Intl

5:40 am - 10:45 amYXU London-SFO San Francisco

8h 05m1 stop Toronto Pearson Intl

$1,545United Airlines

Mon, Aug 17 - Thu, Aug 20

6:05 pm - 5:20 amSFO San Francisco-YXU London

8h 15m1 stop Calgary

8:40 pm - 12:00 pmYXU London-SFO San Francisco

18h 20m1 stop Calgary

$1,627WestJet

Mon, Aug 17 - Wed, Aug 19

6:05 pm - 5:20 amSFO San Francisco-YXU London

8h 15m1 stop Calgary

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

8h 50m1 stop Calgary

$1,627WestJet

Mon, Aug 17 - Fri, Aug 21

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

7h 45m1 stop Calgary

8:40 pm - 4:40 pmYXU London-SFO San Francisco

23h 00m1 stop Calgary

$1,627WestJet

Useful Info

Cheapest flight	$218

Flight from San Francisco 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.

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$218 Find Cheap Flights from California to London - Compare and Save

Cheap Flights from California to London

Recent round-trip flight deals from California to London

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Recent last minute flight deals from California to London

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