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$ 260 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

Wed, 16 Sep - Thu, 24 Sep

12:05 a.m. - 5:43 p.m.SFO San Francisco-YXU London

14h 38m1 stop Toronto Pearson Intl

3:30 p.m. - 8:59 p.m.YXU London-SFO San Francisco

8h 29m1 stop Toronto Pearson Intl

C$ 529Air Canada

Fri, 6 Nov - Mon, 9 Nov

4:40 p.m. - 5:35 a.m.SFO San Francisco-YXU London

9h 55m1 stop Calgary

6:40 a.m. - 3:50 p.m.YXU London-SFO San Francisco

12h 10m1 stop Calgary

C$ 529WestJet

Tue, 15 Sep - Sat, 19 Sep

3:30 p.m. - 5:20 a.m.SAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 a.m. - 2:10 p.m.YXU London-SAN San Diego

11h 00m1 stop Calgary

C$ 534WestJet

Fri, 25 Sep - Mon, 28 Sep

6:00 a.m. - 5:20 a.m.SFO San Francisco-YXU London

20h 20m1 stop Calgary

5:55 p.m. - 12:00 p.m.YXU London-SFO San Francisco

21h 05m1 stop Calgary

C$ 537WestJet

Fri, 9 Oct - Fri, 16 Oct

6:00 a.m. - 4:45 p.m.SFO San Francisco-YXU London

7h 45m1 stop Calgary

6:10 a.m. - 12:00 p.m.YXU London-SFO San Francisco

8h 50m1 stop Calgary

C$ 551WestJet

Thu, 17 Sep - Thu, 24 Sep

6:00 a.m. - 5:20 a.m.SFO San Francisco-YXU London

20h 20m1 stop Calgary

6:10 a.m. - 9:55 p.m.YXU London-SFO San Francisco

18h 45m1 stop Calgary

C$ 557WestJet

Fri, 6 Nov - Mon, 9 Nov

4:40 p.m. - 5:35 a.m.SFO San Francisco-YXU London

9h 55m1 stop Calgary

6:40 a.m. - 3:50 p.m.YXU London-SFO San Francisco

12h 10m1 stop Calgary

C$ 562WestJet

Tue, 29 Sep - Sat, 3 Oct

3:30 p.m. - 5:20 a.m.SAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 a.m. - 2:10 p.m.YXU London-SAN San Diego

11h 00m1 stop Calgary

C$ 572WestJet

Tue, 15 Sep - Sat, 19 Sep

7:00 a.m. - 9:40 p.m.SAN San Diego-YXU London

11h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

10:05 a.m. - 8:36 p.m.YXU London-SAN San Diego

13h 31m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

C$ 582Air Canada

Tue, 15 Sep - Sat, 19 Sep

1:10 p.m. - 9:20 a.m.SAN San Diego-YXU London

17h 10m1 stop Toronto Pearson Intl

10:05 a.m. - 8:36 p.m.YXU London-SAN San Diego

13h 31m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

C$ 602Air Canada

Recent last minute flight deals from California to London

Thu, 27 Aug - Mon, 31 Aug

3:26 p.m. - 4:45 p.m.SFO San Francisco-YXU London

22h 19m2 stops Seattle/Tacoma Intl Calgary

6:10 a.m. - 9:55 p.m.YXU London-SFO San Francisco

18h 45m1 stop Calgary

C$ 1,331Multiple Airlines

Fri, 28 Aug - Mon, 31 Aug

10:59 p.m. - 5:20 a.m.SFO San Francisco-YXU London

27h 21m2 stops Detroit Metropolitan Wayne County Calgary

5:55 p.m. - 9:55 p.m.YXU London-SFO San Francisco

31h 00m1 stop Calgary

C$ 1,408WestJet

Fri, 28 Aug - Mon, 31 Aug

10:59 p.m. - 5:20 a.m.SFO San Francisco-YXU London

27h 21m2 stops Detroit Metropolitan Wayne County Calgary

5:55 p.m. - 9:55 p.m.YXU London-SFO San Francisco

31h 00m1 stop Calgary

C$ 1,439WestJet

Thu, 27 Aug - Mon, 31 Aug

5:36 a.m. - 5:20 a.m.SFO San Francisco-YXU London

20h 44m2 stops Detroit Metropolitan Wayne County Calgary

5:55 p.m. - 12:00 p.m.YXU London-SFO San Francisco

21h 05m1 stop Calgary

C$ 1,495WestJet

Fri, 28 Aug - Mon, 31 Aug

10:59 p.m. - 5:20 a.m.SFO San Francisco-YXU London

27h 21m2 stops Detroit Metropolitan Wayne County Calgary

5:55 p.m. - 9:55 p.m.YXU London-SFO San Francisco

31h 00m1 stop Calgary

C$ 1,495WestJet

Thu, 27 Aug - Mon, 31 Aug

6:05 p.m. - 5:20 a.m.SFO San Francisco-YXU London

8h 15m1 stop Calgary

6:10 a.m. - 12:00 p.m.YXU London-SFO San Francisco

8h 50m1 stop Calgary

C$ 1,505WestJet

Thu, 27 Aug - Mon, 31 Aug

6:05 p.m. - 5:20 a.m.SFO San Francisco-YXU London

8h 15m1 stop Calgary

6:10 a.m. - 9:55 p.m.YXU London-SFO San Francisco

18h 45m1 stop Calgary

C$ 1,508WestJet

Fri, 28 Aug - Mon, 31 Aug

6:00 a.m. - 4:45 p.m.SFO San Francisco-YXU London

7h 45m1 stop Calgary

6:10 a.m. - 9:55 p.m.YXU London-SFO San Francisco

18h 45m1 stop Calgary

C$ 1,508WestJet

Fri, 28 Aug - Mon, 31 Aug

6:00 a.m. - 4:45 p.m.SFO San Francisco-YXU London

7h 45m1 stop Calgary

6:10 a.m. - 9:55 p.m.YXU London-SFO San Francisco

18h 45m1 stop Calgary

C$ 1,509WestJet

Thu, 27 Aug - Mon, 31 Aug

6:05 p.m. - 5:20 a.m.SFO San Francisco-YXU London

8h 15m1 stop Calgary

6:10 a.m. - 9:55 p.m.YXU London-SFO San Francisco

18h 45m1 stop Calgary

C$ 1,509WestJet

Useful Info

Cheapest flight	C$ 260

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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C$ 260 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

Recent one-way flight deals from California to London

Recent last minute flight deals from California to London

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FAQs for booking flights from California to London

Travelling to a place near London?

Everything you need to know for your flight to London

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Complete your trip to London with a hotel stay or car rental

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