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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

C$ 209 CHEAP FLIGHTS from California to London

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Cheap Flight Deals from California to London

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from California to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Recent round-trip flight deals from California to London

KAYAK's recommended round-trip deals from the most popular airlines that fly from California to London.

Discover the best prices for you by selecting your travel dates on KAYAK.

Choose your dates

6:05 p.m. - 5:14 a.m.SFO-YXU

8h 09m1 stop

6:00 a.m. - 12:05 p.m.YXU-SFO

9h 05m1 stop

C$ 440WestJet

Find Deal

Tue, 10 Jun - Tue, 17 Jun

2:45 p.m. - 5:14 a.m.SFO-YXU

11h 29m2 stops

6:00 a.m. - 1:59 p.m.YXU-SFO

10h 59m2 stops

C$ 451WestJet

Find Deal

Fri, 30 May - Sun, 1 Jun

6:05 p.m. - 5:14 a.m.SFO-YXU

8h 09m1 stop

6:00 a.m. - 12:05 p.m.YXU-SFO

9h 05m1 stop

C$ 454WestJet

Find Deal

Tue, 10 Jun - Tue, 17 Jun

10:56 p.m. - 9:18 a.m.SFO-YXU

7h 22m1 stop

3:35 p.m. - 9:37 p.m.YXU-SFO

9h 02m1 stop

C$ 458Air Canada

Find Deal

Sat, 14 Jun - Mon, 16 Jun

10:45 p.m. - 2:58 p.m.SFO-YXU

13h 13m2 stops

3:35 p.m. - 9:37 p.m.YXU-SFO

9h 02m1 stop

C$ 518United Airlines

Find Deal

Sat, 14 Jun - Mon, 16 Jun

10:30 p.m. - 2:57 p.m.SAN-YXU

13h 27m2 stops

6:15 a.m. - 11:50 a.m.YXU-SAN

8h 35m1 stop

C$ 637Air Canada

Find Deal

Wed, 18 Jun - Sun, 22 Jun

10:15 a.m. - 5:14 a.m.SFO-YXU

15h 59m2 stops

6:00 a.m. - 9:30 a.m.YXU-SFO

30h 30m3 stops

C$ 713

Find Deal

Fri, 30 May - Sun, 1 Jun

10:15 a.m. - 7:10 p.m.SFO-YXU

29h 55m3 stops

6:00 a.m. - 9:30 a.m.YXU-SFO

30h 30m3 stops

C$ 722

Find Deal

Fri, 30 May - Sun, 1 Jun

2:20 p.m. - 5:14 a.m.SJC-YXU

11h 54m2 stops

6:00 a.m. - 8:10 a.m.YXU-SJC

29h 10m2 stops

C$ 1,041Delta

Find Deal

Wed, 14 May - Sun, 25 May

6:45 p.m. - 3:04 p.m.SJC-YXU

17h 19m2 stops

9:55 a.m. - 10:39 p.m.YXU-SJC

15h 44m2 stops

C$ 1,313United Airlines

Find Deal

Wed, 14 May - Tue, 27 May

Low season	December
High season	January
Cheapest flight	C$ 209

Best time to beat the crowds (62% less expensive on average)

Most popular time to fly and prices are also 58% lower on average.

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.

See more FAQs

Grand Bend

Port Stanley

Everything you need to know for your flight to London

C$ 209 Find Cheap Flights from California to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 14/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

KAYAK searches hundreds of travel sites at once for deals on flights to London

Cheap Flight Deals from California to London

Recent round-trip flight deals from California to London

Recent one-way flight deals from California to London

Good to know

Low season

High season

Cheapest flight

FAQs for booking flights from California to London

How does KAYAK find such low prices 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?

What is the Hacker Fare option on flights from California to London?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to London?

Travelling to a place near London?

Everything you need to know for your flight to London

Information on the airport you'll fly into in London

Cabin class types available on flights to California

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Flights from domestic origins to London

Flights from all regions of California to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Choose which airport to fly into in London

Find deals for your return flight