YXU - SFO

C$ 336 Find Cheap Flights from London to San Francisco – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% 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
C$ 652
Typical prices: C$ 481-C$ 849
Air Canada
Thu 11/1Sat 13/1
YXU - SFO • 1 stop
Cheapest one-way flights
C$ 336
Typical prices: C$ 269-C$ 841
Air Canada
Mon 10/12
YXU - SFO • 1 stop
Direct 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 • 31% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Calgary (YYC)
Cheapest • Avg C$ 636 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 8h 38m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy 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

Mon, 11 Jan - Wed, 13 Jan
Air Canada Logo
9:15 a.m. - 9:30 p.m.YXU  London-SFO San Francisco
15h 15m1 stop Toronto Pearson Intl
Air Canada Logo
6:30 a.m. - 9:52 p.m.SFO  San Francisco-YXU London
12h 22m2 stops Vancouver Intl Toronto Pearson Intl
C$ 652Air Canada
Mon, 11 Jan - Wed, 13 Jan
Air Canada Logo
9:15 a.m. - 9:33 p.m.YXU  London-SFO San Francisco
15h 18m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
6:30 a.m. - 9:52 p.m.SFO  San Francisco-YXU London
12h 22m2 stops Vancouver Intl Toronto Pearson Intl
C$ 663Air Canada
Wed, 25 Nov - Sun, 29 Nov
Air Canada Logo
3:25 p.m. - 9:30 p.m.YXU  London-SFO San Francisco
9h 05m1 stop Toronto Pearson Intl
Air Canada Logo
8:25 a.m. - 8:27 p.m.SFO  San Francisco-YXU London
9h 02m1 stop Toronto Pearson Intl
C$ 697Air Canada
Mon, 11 Jan - Wed, 13 Jan
Air Canada Logo
9:15 a.m. - 9:30 p.m.YXU  London-SFO San Francisco
15h 15m1 stop Toronto Pearson Intl
Air Canada Logo
4:40 p.m. - 8:37 a.m.SFO  San Francisco-YXU London
12h 57m1 stop Toronto Pearson Intl
C$ 702Air Canada
Mon, 11 Jan - Wed, 13 Jan
Air Canada Logo
9:15 a.m. - 9:30 p.m.YXU  London-SFO San Francisco
15h 15m1 stop Toronto Pearson Intl
Air Canada Logo
6:30 a.m. - 9:52 p.m.SFO  San Francisco-YXU London
12h 22m2 stops Vancouver Intl Toronto Pearson Intl
C$ 703Air Canada
Mon, 11 Jan - Wed, 13 Jan
Air Canada Logo
9:15 a.m. - 9:13 p.m.YXU  London-SFO San Francisco
14h 58m2 stops Toronto Pearson Intl Chicago O'Hare Intl
Air Canada Logo
10:40 p.m. - 2:42 p.m.SFO  San Francisco-YXU London
13h 02m2 stops Chicago O'Hare Intl Toronto Pearson Intl
C$ 727Air Canada
Mon, 11 Jan - Wed, 13 Jan
Air Canada Logo
9:15 a.m. - 9:30 p.m.YXU  London-SFO San Francisco
15h 15m1 stop Toronto Pearson Intl
Air Canada Logo
4:40 p.m. - 8:37 a.m.SFO  San Francisco-YXU London
12h 57m1 stop Toronto Pearson Intl
C$ 755Air Canada
Wed, 25 Nov - Sun, 29 Nov
Air Canada Logo
9:05 p.m. - 11:10 a.m.YXU  London-SFO San Francisco
17h 05m1 stop Toronto Pearson Intl
Air Canada Logo
6:30 a.m. - 8:32 a.m.SFO  San Francisco-YXU London
23h 02m2 stops Vancouver Intl Toronto Pearson Intl
C$ 769Air Canada
Thu, 10 Dec - Thu, 17 Dec
United Airlines Logo
5:30 a.m. - 1:10 p.m.YXU  London-SFO San Francisco
10h 40m1 stop Toronto Pearson Intl
United Airlines Logo
6:20 a.m. - 8:37 a.m.SFO  San Francisco-YXU London
23h 17m2 stops Denver Intl Toronto Pearson Intl
C$ 787United Airlines
Mon, 11 Jan - Wed, 13 Jan
United Airlines Logo
3:20 p.m. - 1:45 a.m.YXU  London-SFO San Francisco
13h 25m2 stops Toronto Pearson Intl Washington, D.C. Dulles Intl
United Airlines Logo
7:15 a.m. - 9:52 p.m.SFO  San Francisco-YXU London
11h 37m2 stops Houston George Bush Intcntl Toronto Pearson Intl
C$ 789United Airlines
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 with more confidence.

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

Round-trip flights from London to San Francisco typically range from C$ 481 to C$ 849. The lowest price found in the past 5 days was C$ 652, on Air Canada.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from London to San Francisco. It's 20% cheaper than the average day, while Monday is the most expensive, with prices 172% higher.

Find deals

Key details for London to San Francisco flights

Low season

January

Cheapest flight

C$ 336
Beat the crowds with an average 52% drop in traveller numbers.
The most popular month to fly with an average 54% increase in traveller numbers.
One-way 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 answers about this route, including flight times, airports, airlines, and booking tips.

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

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

  • How long does a flight from London to San Francisco take?

    A direct flight from London to San Francisco takes 00m, covering 5,645 km.

  • 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.

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

    Round-trip flights from London to San Francisco range from C$ 481 to C$ 849, with an average of C$ 610 over the past 12 months. Anything below C$ 481 counts as a good deal.

  • 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 C$ 652 to C$ 6,331. That means the highest observed fare was about 10x 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 higher than usual. Average one-way flight prices are about C$ 411, which is 23% above the typical average for this route.

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

    San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates averaging C$ 88 for economy cars. Top options include:

    • Europcar
    • Thrifty
    • Dollar
    • Hertz
    • Fox

  • 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).

  • 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) – 65% of one-stop connections
    • Calgary (YYC) – 35% of one-stop connections

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

    Yes. Flexible dates can save you up to 71% on flights from London to San Francisco. Tuesday is the cheapest departure day at C$ 488 round-trip on average, while Monday is the most expensive at C$ 1,662, a difference of C$ 1,173.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

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

    Flying via Calgary (YYC) gives the shortest average 1-stop total travel time at 8h 32m, compared with 8h 38m 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.

  • Which popular places can I visit in San Francisco?

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

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 are flexible, aim for a Tuesday departure and avoid flying on Monday. On this route, Tuesday flights average C$ 488, about C$ 1,173 less than Monday fares (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 C$ 422 round-trip in that month – typically C$ 972 less than the most expensive month, which is August (based on the last 12 months).

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