YXU - SFO

C$ 235 Find Cheap Flights from London to San Francisco – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 406
Typical prices: C$ 478-C$ 976
WestJet
Fri 7/12Thu 13/12
YXU - SFO • 1 stop
Cheapest one-way flights
C$ 235
Typical prices: C$ 286-C$ 836
Air Canada
Sun 30/9
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 • 38% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Calgary (YYC)
Cheapest • Avg C$ 626 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 8h 30m (one-way)
Insights
Insights
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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, 7 Dec - Sun, 13 Dec
WestJet Logo
6:40 a.m. - 3:50 p.m.YXU  London-SFO San Francisco
12h 10m1 stop Calgary
WestJet Logo
4:40 p.m. - 5:35 a.m.SFO  San Francisco-YXU London
9h 55m1 stop Calgary
C$ 406WestJet
Sat, 31 Oct - Thu, 5 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
12:00 p.m. - 8:37 a.m.SFO  San Francisco-YXU London
17h 37m1 stop Toronto Pearson Intl
C$ 426Air Canada
Fri, 16 Oct - Mon, 19 Oct
WestJet Logo
5:55 p.m. - 9:55 p.m.YXU  London-SFO San Francisco
31h 00m1 stop Calgary
WestJet Logo
6:00 a.m. - 5:20 a.m.SFO  San Francisco-YXU London
20h 20m1 stop Calgary
C$ 473WestJet
Thu, 14 Jan - Thu, 21 Jan
WestJet Logo
6:40 a.m. - 3:50 p.m.YXU  London-SFO San Francisco
12h 10m1 stop Calgary
WestJet Logo
4:40 p.m. - 5:35 a.m.SFO  San Francisco-YXU London
9h 55m1 stop Calgary
C$ 481WestJet
Fri, 2 Oct - Tue, 6 Oct
Air Canada Logo
5:40 a.m. - 6:31 p.m.YXU  London-SFO San Francisco
15h 51m2 stops Toronto Pearson Intl Vancouver Intl
Air Canada Logo
11:35 a.m. - 8:25 a.m.SFO  San Francisco-YXU London
17h 50m1 stop Toronto Pearson Intl
C$ 487Air Canada
Fri, 2 Oct - Tue, 6 Oct
Air Canada Logo
5:40 a.m. - 6:31 p.m.YXU  London-SFO San Francisco
15h 51m2 stops Toronto Pearson Intl Vancouver Intl
Air Canada Logo
12:15 p.m. - 8:25 a.m.SFO  San Francisco-YXU London
17h 10m2 stops Vancouver Intl Toronto Pearson Intl
C$ 487Air Canada
Fri, 2 Oct - Tue, 6 Oct
Air Canada Logo
5:40 a.m. - 3:21 p.m.YXU  London-SFO San Francisco
12h 41m2 stops Toronto Pearson Intl Vancouver Intl
Air Canada Logo
7:30 p.m. - 5:43 p.m.SFO  San Francisco-YXU London
19h 13m2 stops Vancouver Intl Toronto Pearson Intl
C$ 493Air Canada
Fri, 2 Oct - Tue, 6 Oct
Air Canada Logo
5:40 a.m. - 3:21 p.m.YXU  London-SFO San Francisco
12h 41m2 stops Toronto Pearson Intl Vancouver Intl
Air Canada Logo
7:30 p.m. - 5:43 p.m.SFO  San Francisco-YXU London
19h 13m2 stops Vancouver Intl Toronto Pearson Intl
C$ 494Air Canada
Fri, 2 Oct - Tue, 6 Oct
Air Canada Logo
5:40 a.m. - 3:21 p.m.YXU  London-SFO San Francisco
12h 41m2 stops Toronto Pearson Intl Vancouver Intl
Air Canada Logo
11:35 a.m. - 8:25 a.m.SFO  San Francisco-YXU London
17h 50m1 stop Toronto Pearson Intl
C$ 501Air Canada
Tue, 12 Jan - Wed, 20 Jan
Air Canada Logo
3:20 p.m. - 9:20 p.m.YXU  London-SFO San Francisco
9h 00m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 p.m. - 8:37 a.m.SFO  San Francisco-YXU London
12h 02m2 stops Vancouver Intl Toronto Pearson Intl
C$ 513Air 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 C$ 406. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 478 to C$ 976. The lowest price found in the past 5 days was C$ 406 on WestJet.

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 and 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.

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Key details for London to San Francisco flights

Low season

January

Cheapest flight

C$ 235
Best time to beat the crowds (38% less expensive on average)
Most popular time to fly and prices are also 30% lower on average.
Flights 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).

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

    Two cabin classes are available on flights from London to San Francisco:

    • Economy Class
    • First Class

  • 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 C$ 486 round-trip on average, while Monday is the most expensive at C$ 1,653, a difference of C$ 1,167. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • Which 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 does a flight from London to San Francisco take?

    A direct flight from London to San Francisco takes 0h 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 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 C$ 299, which is 42% below the typical average for this route.

  • 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 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 C$ 21 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 C$ 478 to C$ 976, with an average of C$ 682 over the past 12 months. Anything below C$ 478 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 are flexible, aim for a Tuesday departure instead of Monday. On this route, Tuesday flights average C$ 486 – about C$ 1,167 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 C$ 420 round-trip in that month – typically C$ 1,227 less than the most expensive month, which is September (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