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

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

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

Connecting flights from San Francisco to London most commonly pass through: • Calgary (YYC) – 74% of one-stop connections • Toronto Pearson Intl (YYZ) – 26% 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 San Francisco to London?

On the San Francisco to London route, being flexible with your departure day can save you up to 30%. Saturday is the cheapest day at C$ 764 round-trip on average, while Sunday is the most expensive at C$ 1,084 – a C$ 319 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

A direct flight from San Francisco to London takes 0h 00m, covering 5,645 km.

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

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 San Francisco to London 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$ 541 to C$ 1,870. That means the highest observed fare was about 3x higher than the lowest one.

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

One-way fares from San Francisco to London are currently lower than usual. Average one-way flight prices are about C$ 272, which is 13% below the typical average for this route.

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

Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 8h 19m, compared with 9h 00m via Calgary (YYC).

What is the time difference between San Francisco and London?

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

What car rental options are available at London Airport (YXU)?

London Airport (YXU) hosts 5 major car rental companies, with daily rates starting from around C$ 40 for economy cars. Top options include: • Alamo • Enterprise Rent-A-Car • Budget • National • Avis

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

Round-trip flights from San Francisco to London range from C$ 808 to C$ 1,083, with an average of C$ 920 over the past 12 months. Anything below C$ 808 counts as a good deal.

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

WestJet (C$ 541) and Air Canada (C$ 542) are the cheapest airlines to fly round-trip from San Francisco to London according to KAYAK data over the last 5 days.

What is the most popular layover airport when flying from San Francisco to London?

Calgary (YYC) is the most popular layover for the San Francisco to London route. 74% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via YYC.

What is the cheapest layover airport when flying from San Francisco to London?

Flights via Calgary (YYC) offer the most affordable fares, with an average round-trip price of C$ 903. Based on KAYAK data over the past 3 months.

When flying from San Francisco to London, which airport offers the shortest layover?

Toronto Pearson Intl (YYZ) had the shortest average connection time for San Francisco to London layovers at 326 minutes over the past 3 months.

C$ 241 CHEAP FLIGHTS from San Francisco to London (SFO - YXU)

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Cheapest round-trip

C$ 541

Typical prices: C$ 808-C$ 1,083

WestJet

Sun 14/10Sun 21/10

SFO - YXU • 1 stop

Cheapest one-way flights

C$ 241

Typical prices: C$ 271-C$ 375

Air Canada

Wed 10/10

SFO - YXU • 2 stops

Direct flights

Not available

There are currently no direct flights between San Francisco and London. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

June

Cheapest • 39% price drop

July

Most popular

Good to know

Top layover airports

Calgary (YYC)

Cheapest • Avg C$ 903 (round-trip)

Toronto Pearson Intl (YYZ)

Shortest trip • 8h 19m (one-way)

Insights

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We hope you enjoy your trip to London!

Flight Deals

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

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

Round-trip

One-way

Last minute

Recent round-trip flight deals from San Francisco to London

Wed, 14 Oct - Wed, 21 Oct

6:05 p.m. - 5:20 a.m.SFO San Francisco-YXU London

8h 15m1 stop Calgary

6:10 a.m. - 12:00 p.m.YXU London-SFO San Francisco

8h 50m1 stop Calgary

C$ 541WestJet

Tue, 20 Oct - Thu, 22 Oct

7:30 p.m. - 5:43 p.m.SFO San Francisco-YXU London

19h 13m2 stops Vancouver Intl Toronto Pearson Intl

8:20 p.m. - 10:39 a.m.YXU London-SFO San Francisco

17h 19m1 stop Toronto Pearson Intl

C$ 542Air Canada

Tue, 20 Oct - Thu, 22 Oct

7:30 p.m. - 5:43 p.m.SFO San Francisco-YXU London

19h 13m2 stops Vancouver Intl Toronto Pearson Intl

8:20 p.m. - 3:21 p.m.YXU London-SFO San Francisco

22h 01m2 stops Toronto Pearson Intl Vancouver Intl

C$ 549Air Canada

Sat, 17 Oct - Sat, 24 Oct

11:35 a.m. - 8:25 a.m.SFO San Francisco-YXU London

17h 50m1 stop Toronto Pearson Intl

3:30 p.m. - 11:20 p.m.YXU London-SFO San Francisco

10h 50m2 stops Toronto Pearson Intl Vancouver Intl

C$ 573Air Canada

Sat, 17 Oct - Sat, 24 Oct

12:15 p.m. - 8:25 a.m.SFO San Francisco-YXU London

17h 10m2 stops Vancouver Intl Toronto Pearson Intl

3:30 p.m. - 11:20 p.m.YXU London-SFO San Francisco

10h 50m2 stops Toronto Pearson Intl Vancouver Intl

C$ 580Air Canada

Tue, 20 Oct - Thu, 22 Oct

1:00 p.m. - 5:20 a.m.SFO San Francisco-YXU London

13h 20m1 stop Calgary

5:55 p.m. - 12:00 p.m.YXU London-SFO San Francisco

21h 05m1 stop Calgary

C$ 593WestJet

Tue, 20 Oct - Thu, 22 Oct

7:30 p.m. - 5:43 p.m.SFO San Francisco-YXU London

19h 13m2 stops Vancouver Intl Toronto Pearson Intl

8:20 p.m. - 3:21 p.m.YXU London-SFO San Francisco

22h 01m2 stops Toronto Pearson Intl Vancouver Intl

C$ 607Air Canada

Sat, 31 Oct - Sat, 7 Nov

8:25 a.m. - 7:52 p.m.SFO San Francisco-YXU London

8h 27m1 stop Toronto Pearson Intl

9:15 a.m. - 3:40 p.m.YXU London-SFO San Francisco

9h 25m1 stop Toronto Pearson Intl

C$ 609United Airlines

Tue, 20 Oct - Thu, 22 Oct

12:15 p.m. - 8:25 a.m.SFO San Francisco-YXU London

17h 10m2 stops Vancouver Intl Toronto Pearson Intl

6:20 p.m. - 12:07 p.m.YXU London-SFO San Francisco

20h 47m2 stops Toronto Pearson Intl Edmonton

C$ 621Air Canada

Tue, 20 Oct - Thu, 22 Oct

1:35 p.m. - 8:25 a.m.SFO San Francisco-YXU London

15h 50m1 stop Toronto Pearson Intl

6:20 p.m. - 12:07 p.m.YXU London-SFO San Francisco

20h 47m2 stops Toronto Pearson Intl Edmonton

C$ 622Air Canada

Booking Insights

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

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

Prices

Airlines

Layovers

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

Round-trip flights from San Francisco to London start at C$ 541. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 808 to C$ 1,083. The lowest price found in the past 5 days was C$ 541 on WestJet.

Find deals

Low season	February
High season	July
Cheapest flight	C$ 241

Most popular time to fly (3% more expensive on average)

Flights from San Francisco to London

When to book flights from San Francisco to London

Are your dates flexible? Find out the best times to travel from San Francisco to London 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.

Which airports can I use when flying from San Francisco to London?
Flights from San Francisco to London usually depart from San Francisco (SFO) and arrive at London (YXU).
Which airports do connecting flights from San Francisco to London pass through?
Connecting flights from San Francisco to London most commonly pass through:

• Calgary (YYC) – 74% of one-stop connections
• Toronto Pearson Intl (YYZ) – 26% 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 San Francisco to London?
On the San Francisco to London route, being flexible with your departure day can save you up to 30%. Saturday is the cheapest day at C$ 764 round-trip on average, while Sunday is the most expensive at C$ 1,084 – a C$ 319 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
How long does a flight from San Francisco to London take?
A direct flight from San Francisco to London takes 0h 00m, covering 5,645 km.
Do I need a passport to fly from San Francisco to London?
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 San Francisco to London 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$ 541 to C$ 1,870. That means the highest observed fare was about 3x higher than the lowest one.
How are flight prices from San Francisco to London looking right now?
One-way fares from San Francisco to London are currently lower than usual. Average one-way flight prices are about C$ 272, which is 13% below the typical average for this route.
How much time can I save by choosing a different layover airport when travelling from San Francisco to London?
Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 8h 19m, compared with 9h 00m via Calgary (YYC).
What is the time difference between San Francisco and London?
London is 3 hours ahead of San Francisco (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at London Airport (YXU)?
London Airport (YXU) hosts 5 major car rental companies, with daily rates starting from around C$ 40 for economy cars. Top options include:
• Alamo
• Enterprise Rent-A-Car
• Budget
• National
• Avis
How much should I expect to pay for a San Francisco to London flight?
Round-trip flights from San Francisco to London range from C$ 808 to C$ 1,083, with an average of C$ 920 over the past 12 months. Anything below C$ 808 counts as a good deal.

If your dates are flexible, aim for a Saturday departure instead of Sunday. On this route, Saturday flights average C$ 764 – about C$ 319 less than Sunday (29% savings) based on the last 12 months.
If you can choose when to travel, plan your San Francisco to London trip for June. Fares historically average C$ 565 round-trip in that month – typically C$ 471 less than the most expensive month, which is August (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to London Airport.
- Best Western London Airport Inn & Suites
- London residency inn

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SFO - YXU

C$ 241 Find Cheap Flights from San Francisco to London – Compare and Save

Everything you should know

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

Recent round-trip flight deals from San Francisco to London

Recent one-way flight deals from San Francisco to London

Recent last minute flight deals from San Francisco to London

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

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

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

What is the most popular layover airport when flying from San Francisco to London?

What is the cheapest layover airport when flying from San Francisco to London?

When flying from San Francisco to London, which airport offers the shortest layover?

Key details for San Francisco to London flights

Low season

High season

Cheapest flight

When to book flights from San Francisco to London

Your San Francisco to London flight questions, answered

Your guide to booking San Francisco to London flights

More options for your flight from San Francisco to London

Complete your trip to London with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from San Francisco to London

Find direct flights to and from San Francisco and London

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