YXU - SFO

$174 Find Cheap Flights from London to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to San Francisco departing on 6/14. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Francisco, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Flights Deals

Cheap Flight Deals from London to San Francisco (YXU-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to San Francisco 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.

Recent round-trip flight deals from London to San Francisco

KAYAK's recommended round-trip deals from the most popular airlines that fly from London to San Francisco.
Discover the best prices for you by selecting your travel dates on KAYAK.
WestJet Logo
8:00 pm - 12:05 pmYXU-SFO
19h 05m1 stop
WestJet Logo
12:50 pm - 5:14 amSFO-YXU
13h 24m1 stop
$358WestJet
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Wed, May 14 - Wed, May 21
United Airlines Logo
3:45 pm - 9:02 pmYXU-SFO
8h 17m1 stop
United Airlines Logo
12:10 am - 3:03 pmSFO-YXU
11h 53m2 stops
$418United Airlines
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Wed, May 14 - Tue, May 20
Logo
8:00 pm - 10:22 amYXU-SFO
17h 22m3 stops
Logo
2:45 pm - 5:14 amSFO-YXU
11h 29m2 stops
$1,083
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Wed, May 14 - Wed, May 21
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KAYAK's insights & trends for London to San Francisco flights

Get data-powered insights and trends into flights from London to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to San Francisco is June, where tickets cost $264 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $651 and $570 respectively.

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Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$174
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from London to San Francisco

When to book flights from London to San Francisco

Are your dates flexible? Find out the best times to travel from London to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to San Francisco

  • What is the cheapest flight from London to San Francisco?

    In the last 3 days, the lowest price for a flight from London to San Francisco was $174 for a one-way ticket and $331 for a round-trip.

  • Do I need a passport to fly between London and San Francisco?

    A passport is required to fly from London to San Francisco.

  • Which aircraft models fly most regularly from London to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to San Francisco?

    Star Alliance is the only airline alliance operating flights between London and San Francisco.

  • How does KAYAK find such low prices on flights from London to San Francisco?

    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 London to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from London 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 London to San Francisco?

    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 San Francisco with an airline and back to London with another airline. Booking your flights between London and SFO can sometimes prove cheaper using this method.

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

    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 San Francisco from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from London to San Francisco

Information on your arrival and departure airports

San Francisco (SFO)
London (YXU)

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