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.

$198 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.

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One-way

Recent round-trip flight deals from California to London

Wed, Sep 30 - Wed, Oct 7

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

$351WestJet

Thu, Sep 17 - Thu, Sep 24

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

$359WestJet

Fri, Nov 6 - Mon, Nov 9

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

$400WestJet

Wed, Oct 28 - Fri, Oct 30

7:05 am - 9:52 pmSAN San Diego-YXU London

11h 47m2 stops Vancouver Intl Toronto Pearson Intl

5:30 am - 12:00 pmYXU London-SAN San Diego

9h 30m1 stop Toronto Pearson Intl

$418Air Canada

Wed, Oct 28 - Fri, Oct 30

2:30 pm - 6:35 amSAN San Diego-YXU London

13h 05m1 stop Calgary

7:40 am - 1:40 pmYXU London-SAN San Diego

9h 00m1 stop Calgary

$427WestJet

Thu, Sep 17 - Thu, Sep 24

12:50 pm - 9:20 amSFO San Francisco-YXU London

17h 30m2 stops Edmonton Toronto Pearson Intl

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

8h 29m1 stop Toronto Pearson Intl

$443Air Canada

Wed, Sep 30 - Wed, Oct 7

11:17 am - 5:20 amSFO San Francisco-YXU London

15h 03m2 stops Las Vegas Harry Reid Intl Calgary

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

8h 50m1 stop Calgary

$461Multiple Airlines

Fri, Nov 6 - Mon, Nov 9

6:30 am - 8:37 amSFO San Francisco-YXU London

23h 07m2 stops Vancouver Intl Toronto Pearson Intl

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

9h 05m1 stop Toronto Pearson Intl

$464Air Canada

Wed, Oct 14 - Sun, Oct 18

11:30 am - 5:20 amLAX Los Angeles Los Angeles-YXU London

14h 50m2 stops Vancouver Intl Calgary

6:10 am - 2:45 pmYXU London-LAX Los Angeles Los Angeles

11h 35m1 stop Calgary

$468Multiple Airlines

Wed, Sep 30 - Wed, Oct 7

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

8h 15m1 stop Calgary

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

14h 50m3 stops Calgary Kelowna Vancouver Intl

$476Multiple Airlines

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Cheapest flight	$198

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.

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$198 Find Cheap Flights from California to London - Compare and Save

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