YXU - SFO

$169 Find Cheap Flights from London to San Francisco - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$306
Typical prices: $344-$702
Air Canada
Wed 10/31Mon 11/5
YXU - SFO • 1 stop
Cheapest one-way
$169
Typical prices: $206-$601
Air Canada
Sun 9/30
YXU - SFO • 1 stop
Nonstop flights
Not available
There are currently no direct flights between London and San Francisco. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 38% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Calgary (YYC)
Cheapest • Avg $450 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 8h 30m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to San Francisco (YXU-SFO)

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

Recent round-trip flight deals from London to San Francisco

Sat, Oct 31 - Thu, Nov 5
Air Canada Logo
3:25 pm - 9:30 pmYXU  London-SFO San Francisco
9h 05m1 stop Toronto Pearson Intl
Air Canada Logo
12:00 pm - 8:37 amSFO  San Francisco-YXU London
17h 37m1 stop Toronto Pearson Intl
$306Air Canada
Wed, Nov 4 - Tue, Nov 17
Air Canada Logo
9:15 am - 3:40 pmYXU  London-SFO San Francisco
9h 25m1 stop Toronto Pearson Intl
Air Canada Logo
6:30 am - 9:57 pmSFO  San Francisco-YXU London
12h 27m2 stops Vancouver Intl Toronto Pearson Intl
$336Air Canada
Wed, Nov 4 - Fri, Nov 13
Air Canada Logo
9:15 am - 9:33 pmYXU  London-SFO San Francisco
15h 18m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
6:30 am - 9:57 pmSFO  San Francisco-YXU London
12h 27m2 stops Vancouver Intl Toronto Pearson Intl
$340Air Canada
Fri, Oct 2 - Tue, Oct 6
Air Canada Logo
5:40 am - 6:31 pmYXU  London-SFO San Francisco
15h 51m2 stops Toronto Pearson Intl Vancouver Intl
Air Canada Logo
12:15 pm - 8:25 amSFO  San Francisco-YXU London
17h 10m2 stops Vancouver Intl Toronto Pearson Intl
$350Air Canada
Mon, Nov 9 - Thu, Nov 12
WestJet Logo
6:40 am - 3:50 pmYXU  London-SFO San Francisco
12h 10m1 stop Calgary
WestJet Logo
4:40 pm - 5:35 amSFO  San Francisco-YXU London
9h 55m1 stop Calgary
$356WestJet
Fri, Oct 2 - Tue, Oct 6
WestJet Logo
6:10 am - 12:00 pmYXU  London-SFO San Francisco
8h 50m1 stop Calgary
WestJet Logo
1:00 pm - 5:20 amSFO  San Francisco-YXU London
13h 20m1 stop Calgary
$361WestJet
Wed, Nov 4 - Sun, Nov 15
Air Canada Logo
3:25 pm - 9:30 pmYXU  London-SFO San Francisco
9h 05m1 stop Toronto Pearson Intl
Air Canada Logo
4:40 pm - 8:37 amSFO  San Francisco-YXU London
12h 57m1 stop Toronto Pearson Intl
$373Air Canada
Wed, Nov 4 - Thu, Nov 12
Air Canada Logo
9:15 am - 9:33 pmYXU  London-SFO San Francisco
15h 18m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
8:25 am - 9:57 pmSFO  San Francisco-YXU London
10h 32m1 stop Toronto Pearson Intl
$376Air Canada
Sat, Oct 31 - Thu, Nov 5
Air Canada Logo
3:25 pm - 12:53 amYXU  London-SFO San Francisco
12h 28m2 stops Toronto Pearson Intl Chicago O'Hare Intl
Air Canada Logo
8:25 am - 9:57 pmSFO  San Francisco-YXU London
10h 32m1 stop Toronto Pearson Intl
$393Air Canada
Fri, Oct 2 - Tue, Oct 6
Air Canada Logo
5:40 am - 7:52 pmYXU  London-SFO San Francisco
17h 12m1 stop Toronto Pearson Intl
Air Canada Logo
8:10 am - 7:40 pmSFO  San Francisco-YXU London
8h 30m1 stop Toronto Pearson Intl
$399Air Canada
Booking Insights

Price, demand and travel trends for London to San Francisco flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from London to San Francisco with more confidence.

How much is a round-trip flight from London to San Francisco?

Round-trip flights from London to San Francisco start at $306. Prices are below average for this route right now, with typical round-trip fares ranging from $344 to $702. The lowest price found in the past 5 days was $306 on Air Canada.

What's the cheapest day of the week to fly from London to San Francisco?

Tuesday is the cheapest day of the week to fly from London to San Francisco, it is 29% cheaper than the average day. Monday is the most expensive day with flight prices 141% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for London to San Francisco flights

Low season

January

Cheapest flight

$169
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 30% lower on average.
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

Your London to San Francisco flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from London to San Francisco?

    Flights from London to San Francisco usually depart from London (YXU) and arrive at San Francisco (SFO).

  • What cabin classes can I book on flights from London to San Francisco?

    Only Economy Class is available on flights from London to San Francisco.

  • Which airports do connecting flights from London to San Francisco pass through?

    Connecting flights from London to San Francisco most commonly pass through:

    • Toronto Pearson Intl (YYZ) - 73% of one-stop connections
    • Calgary (YYC) - 27% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

  • Can I save money by using flexible dates for flights from London to San Francisco?

    Yes. Being flexible with your travel dates can save you up to 71% on the London to San Francisco route. Tuesday is the cheapest departure day at $349 round-trip on average, while Monday is the most expensive at $1,188, a difference of $839. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in San Francisco?

    Some of the most popular sights in San Francisco are Fisherman's Wharf, Union Square and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

  • How long is a flight from London to San Francisco?

    A nonstop flight from London to San Francisco takes 0h 00m, covering 2,180 miles.

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

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from London to San Francisco changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $306 to $1,141. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from London to San Francisco looking right now?

    One-way fares from London to San Francisco are currently lower than usual. Average one-way flight prices are about $225, which is 39% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from London to San Francisco?

    Flying via Calgary (YYC) gives the shortest average 1-stop total travel time at 8h 26m, compared with 8h 30m via Toronto Pearson Intl (YYZ).

  • What is the time difference between London and San Francisco?

    San Francisco is 3 hours behind London (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at San Francisco Airport (SFO)?

    San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:
    • Thrifty
    • Europcar
    • Dollar
    • Hertz
    • Fox

  • How much should I expect to pay for a London to San Francisco flight?

    Round-trip flights from London to San Francisco range from $344 to $702, with an average of $491 over the past 12 months. Anything below $344 counts as a good deal.

Your guide to booking London to San Francisco flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Monday. On this route, Tuesday flights average $349 - about $839 less than Monday (71% savings) based on the last 12 months.
  • If you can choose when to travel, plan your London to San Francisco trip for January. Fares historically average $302 round-trip in that month - typically $882 less than the most expensive month, which is September (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Francisco Airport.
    - Grand Hyatt At Sfo

More options for your flight from London to San Francisco

Complete your trip to San Francisco with a hotel stay or car rental

Car rentals in San Francisco
Hotels in San Francisco
Vacations in San Francisco