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.

C$ 306 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

Recent round-trip flight deals from California to London

Thu, 29 Oct - Tue, 3 Nov

7:40 a.m. - 7:52 p.m.LAX Los Angeles-YXU London

9h 12m1 stop Toronto Pearson Intl

3:25 p.m. - 9:34 p.m.YXU London-LAX Los Angeles

9h 09m1 stop Toronto Pearson Intl

C$ 714Air Canada

Thu, 29 Oct - Tue, 3 Nov

7:40 a.m. - 7:52 p.m.LAX Los Angeles-YXU London

9h 12m1 stop Toronto Pearson Intl

9:15 a.m. - 9:39 p.m.YXU London-LAX Los Angeles

15h 24m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

C$ 718Air Canada

Thu, 7 Jan - Sat, 16 Jan

11:30 a.m. - 9:52 p.m.LAX Los Angeles-YXU London

7h 22m1 stop Toronto Pearson Intl

3:20 p.m. - 9:34 p.m.YXU London-LAX Los Angeles

9h 14m1 stop Toronto Pearson Intl

C$ 728Air Canada

Thu, 7 Jan - Sat, 16 Jan

7:20 a.m. - 9:52 p.m.LAX Los Angeles-YXU London

11h 32m2 stops Vancouver Intl Toronto Pearson Intl

5:30 a.m. - 10:34 a.m.YXU London-LAX Los Angeles

8h 04m1 stop Toronto Pearson Intl

C$ 735Air Canada

Thu, 7 Jan - Sat, 16 Jan

7:20 a.m. - 9:52 p.m.LAX Los Angeles-YXU London

11h 32m2 stops Vancouver Intl Toronto Pearson Intl

5:30 a.m. - 2:21 p.m.YXU London-LAX Los Angeles

11h 51m2 stops Toronto Pearson Intl Vancouver Intl

C$ 743Air Canada

Sun, 25 Oct - Tue, 27 Oct

7:40 a.m. - 7:52 p.m.LAX Los Angeles-YXU London

9h 12m1 stop Toronto Pearson Intl

9:15 a.m. - 3:34 p.m.YXU London-LAX Los Angeles

9h 19m1 stop Toronto Pearson Intl

C$ 779Air Canada

Tue, 24 Nov - Tue, 1 Dec

6:10 p.m. - 2:42 p.m.LAX Los Angeles-YXU London

17h 32m2 stops Vancouver Intl Toronto Pearson Intl

3:20 p.m. - 9:34 p.m.YXU London-LAX Los Angeles

9h 14m1 stop Toronto Pearson Intl

C$ 789Air Canada

Sun, 25 Oct - Tue, 27 Oct

7:40 a.m. - 7:52 p.m.LAX Los Angeles-YXU London

9h 12m1 stop Toronto Pearson Intl

9:15 a.m. - 9:39 p.m.YXU London-LAX Los Angeles

15h 24m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

C$ 792Air Canada

Tue, 24 Nov - Tue, 1 Dec

5:00 p.m. - 5:35 a.m.LAX Los Angeles-YXU London

9h 35m1 stop Calgary

6:40 a.m. - 1:59 p.m.YXU London-LAX Los Angeles

34h 19m3 stops Calgary Edmonton Phoenix Sky Harbor Intl

C$ 827Multiple Airlines

Thu, 29 Oct - Tue, 3 Nov

12:30 p.m. - 2:47 p.m.LAX Los Angeles-YXU London

23h 17m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

9:15 a.m. - 9:39 p.m.YXU London-LAX Los Angeles

15h 24m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

C$ 850Air Canada

Useful Info

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.