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$176+ Cheap flights from San Francisco (SFO) to London, ON (YXU)

SFO — YXU
Oct 11 — Oct 181
Sun 10/11
Sun 10/18
1 adult, Economy
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Cheap flight deals from San Francisco to London

Cheapest flights from San Francisco to London

Thu 10/226:00 am -
1 stop7h 45m
Thu 10/297:40 am -
1 stop12h 10m
Deal found 9/6$361
Wed 11/184:40 pm -
1 stop12h 57m
Mon 11/233:25 pm -
1 stop9h 05m
Deal found 9/7$378
Tue 10/206:00 am -
1 stop20h 20m
Thu 10/226:10 am -
1 stop8h 50m
Deal found 9/6$393
Tue 11/174:55 pm -
2 stops18h 52m
Mon 11/235:30 am -
1 stop10h 40m
Deal found 9/7$405
Tue 10/204:30 pm -
2 stops12h 55m
Thu 10/228:20 pm -
2 stops22h 01m
Deal found 9/9$416
Wed 10/76:05 pm -
1 stop8h 15m
Tue 10/136:10 am -
2 stops17h 28m
Deal found 9/6$470

Find flight deals from San Francisco to London

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$361
(Trip.com)

One-way from

$176
(Justfly.com)
Provider with most accurate pricing for San Francisco-London flight deals.
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Provider most trusted by Cheapflights users for San Francisco-London flights.
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From San Francisco to London
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One-way flight from San Francisco to London
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from San Francisco to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Sat 10/10

1:00 pm-5:20 am

1 stop13h 20m

London

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$176

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Sat 10/10

7:30 pm-7:40 pm

2 stops21h 10m

London

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$182

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Wed 11/18

8:25 am-9:52 pm

1 stop10h 27m

London

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$191
Quickest round-trip

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 9/25

10:51 pm-9:20 am

1 stop7h 29m

London

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$193

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Thu 10/22

6:00 am-4:45 pm

1 stop7h 45m

London

Thu 10/29

7:40 am-4:50 pm

1 stop12h 10m

$361

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Tue 10/20

6:00 am-5:20 am

1 stop20h 20m

London

Thu 10/22

6:10 am-12:00 pm

1 stop8h 50m

$395

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Tue 10/20

4:30 pm-8:25 am

2 stops12h 55m

London

Thu 10/22

8:20 pm-3:21 pm

2 stops22h 01m

$416

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Thu 10/22

6:00 am-4:45 pm

1 stop7h 45m

London

Thu 10/29

7:40 am-8:19 am

2 stops27h 39m

$435

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/6

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on San Francisco-London, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-London, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-London, Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-London, Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-London, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to London

Have a flexible travel schedule? Discover the best time to fly to London from San Francisco with our price prediction graph.
Estimated round-trip price

Reviews of airlines servicing London

Read through reviews of airlines operating flights from San Francisco to London, such as WestJet and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,445 reviews

Boarding

7.4

Overall

7.2

Crew

7.9

Entertainment

6.1

Comfort

7.1

Food

6.2

Reviews

1 / 20
10.0
Excellent

Brian,Aug 2023

SFO - YYC

Great experience on WestJet from SFO to YYC. (My experience at YYC wasn't as good, but that's for another review) The gate area is spacious, with lots of seating and electrical power. Boarding was pretty seamless, aircraft was in excellent shape, great crew, good food (in Business), and smooth flight. I wouldn't hesitate to take WestJet in/out of SFO again.
WestJet
7.2
Good
3,445 reviews
WestJet
7.2
Good
3,445 reviews

Boarding

7.4

Overall

7.2

Crew

7.9

Entertainment

6.1

Comfort

7.1

Food

6.2

Reviews

1 / 20
10.0
Excellent

Brian,Aug 2023

SFO - YYC

Great experience on WestJet from SFO to YYC. (My experience at YYC wasn't as good, but that's for another review) The gate area is spacious, with lots of seating and electrical power. Boarding was pretty seamless, aircraft was in excellent shape, great crew, good food (in Business), and smooth flight. I wouldn't hesitate to take WestJet in/out of SFO again.
Air Canada
7.1
Good
11,611 reviews
WestJet
7.2
Good
3,445 reviews

Boarding

7.4

Overall

7.2

Crew

7.9

Entertainment

6.1

Comfort

7.1

Food

6.2

Reviews

1 / 20
10.0
Excellent

Brian,Aug 2023

SFO - YYC

Great experience on WestJet from SFO to YYC. (My experience at YYC wasn't as good, but that's for another review) The gate area is spacious, with lots of seating and electrical power. Boarding was pretty seamless, aircraft was in excellent shape, great crew, good food (in Business), and smooth flight. I wouldn't hesitate to take WestJet in/out of SFO again.

Related info for your journey

  • How long is the flight from San Francisco to London, Ontario?

    A quick flight from San Francisco to London, Ontario can take about 7h 45m. WestJet provides one of the quickest options available for as low as $361. The distance from San Francisco to London, Ontario is about 2180 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Francisco to London, Ontario round-trip?

    Air Canada, at $358, was found to be the cheapest airline from San Francisco to London, Ontario. An alternate airline flying to your destination would be WestJet.

  • Can I find deals for flights from San Francisco to London that include hotel bookings?

    Yes. In addition to deals on San Francisco to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to London.

  • Can I find deals for business class flights from San Francisco to London?

    Yes. Cheapflights offers flight deals from San Francisco to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from San Francisco to London

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$358Average$694FlexibilityNo cancel feeOn-time67%
WestJetCheapest$366Average$660FlexibilityNo cancel feeOn-time60%

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