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YXU - SFO

C$ 272 Find Cheap Flights from London to San Francisco – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 441
Typical prices: C$ 488-C$ 995
WestJet
Mon 22/10Mon 29/10
YXU - SFO • 1 stop
Cheapest one-way flights
C$ 272
Typical prices: C$ 292-C$ 853
Air Canada
Tue 13/11
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$ 639 (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

Thu, 22 Oct - Thu, 29 Oct
WestJet Logo
6:10 a.m. - 12:00 p.m.YXU  London-SFO San Francisco
8h 50m1 stop Calgary
WestJet Logo
5:40 p.m. - 6:35 a.m.SFO  San Francisco-YXU London
9h 55m1 stop Calgary
C$ 441WestJet
Thu, 19 Nov - Mon, 23 Nov
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
Tue, 27 Oct - Tue, 3 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. - 7:52 p.m.SFO  San Francisco-YXU London
8h 27m1 stop Toronto Pearson Intl
C$ 542Air Canada
Thu, 12 Nov - Thu, 19 Nov
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$ 655WestJet
Tue, 27 Oct - Tue, 3 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
6:30 a.m. - 7:52 p.m.SFO  San Francisco-YXU London
10h 22m2 stops Vancouver Intl Toronto Pearson Intl
C$ 657Air Canada
Thu, 19 Nov - Sun, 22 Nov
United Airlines Logo
5:30 a.m. - 11:10 a.m.YXU  London-SFO San Francisco
8h 40m1 stop Toronto Pearson Intl
United Airlines Logo
12:55 a.m. - 2:47 p.m.SFO  San Francisco-YXU London
10h 52m2 stops Chicago O'Hare Intl Toronto Pearson Intl
C$ 663United Airlines
Thu, 19 Nov - Sun, 22 Nov
United Airlines Logo
3:25 p.m. - 11:28 p.m.YXU  London-SFO San Francisco
11h 03m2 stops Toronto Pearson Intl Chicago O'Hare Intl
United Airlines Logo
12:55 a.m. - 2:47 p.m.SFO  San Francisco-YXU London
10h 52m2 stops Chicago O'Hare Intl Toronto Pearson Intl
C$ 671United Airlines
Thu, 12 Nov - Wed, 18 Nov
United Airlines Logo
9:15 a.m. - 3:40 p.m.YXU  London-SFO San Francisco
9h 25m1 stop Toronto Pearson Intl
United Airlines Logo
12:55 a.m. - 2:47 p.m.SFO  San Francisco-YXU London
10h 52m2 stops Chicago O'Hare Intl Toronto Pearson Intl
C$ 687United Airlines
Fri, 13 Nov - Mon, 16 Nov
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$ 688WestJet
Thu, 22 Oct - Thu, 29 Oct
Air Canada Logo
3:30 p.m. - 10:51 p.m.YXU  London-SFO San Francisco
10h 21m2 stops Toronto Pearson Intl Denver Intl
Air Canada Logo
8:25 a.m. - 7:52 p.m.SFO  San Francisco-YXU London
8h 27m1 stop Toronto Pearson Intl
C$ 689Air 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$ 441. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 488 to C$ 995. The lowest price found in the past 5 days was C$ 441 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.

Find deals

Key details for London to San Francisco flights

Low season

January

Cheapest flight

C$ 272
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 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

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

    Round-trip flights from London to San Francisco range from C$ 488 to C$ 995, with an average of C$ 696 over the past 12 months. Anything below C$ 488 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$ 441 to C$ 1,630. 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 C$ 311, which is 41% below 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 starting from around C$ 22 for economy cars. Top options include:
    • Thrifty
    • Europcar
    • 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) – 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$ 495 round-trip on average, while Monday is the most expensive at C$ 1,685, a difference of C$ 1,190. KAYAK's flexible dates feature shows options up to 3 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 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.

  • 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.

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$ 495 – about C$ 1,190 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$ 428 round-trip in that month – typically C$ 1,251 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