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Cheap flights from San Francisco Bay Area to London, ON from C$ 228

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YXU
2 Sep — 9 Sep1
1 adult

Cheap flight deals from San Francisco Bay Area to London

Keep the following information in mind while searching for San Francisco Bay Area to London flight deals. Data was last updated 28 August 2025.

Round-trip from

C$ 761

One-way from

C$ 228

Popular in

December

Cheapest in

March

Average price

C$ 680
WestJet
  • WestJet
  • 9/10-13/10
  • 2 total stops
  • 37h 36m total
  • San Francisco Bay Area to London
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Air Canada
  • Air Canada
  • 11/10
  • 2 total stops
  • 11h 17m total
  • San Francisco Bay Area to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 176 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (C$ 79 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from San Francisco Bay Area to London

Cheapest flights from San Francisco Bay Area to London
Explore the most affordable flight options available from San Francisco Bay Area to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 August 2025.

Thu 9/107:30 a.m.SFO - YXU
1 stop18h 42mWestJet
Mon 13/108:00 p.m.YXU - SFO
1 stop18h 54mWestJet
Deal found 26/8C$ 761
Thu 9/1010:15 a.m.SFO - YXU
3 stops15h 57mMultiple Airlines
Mon 13/108:00 p.m.YXU - SFO
1 stop18h 54mMultiple Airlines
Deal found 26/8C$ 798
Wed 8/1012:43 a.m.SFO - YXU
2 stops17h 44mUnited Airlines
Mon 13/103:40 p.m.YXU - SFO
2 stops19h 05mUnited Airlines
Deal found 26/8C$ 834
Sun 12/107:15 a.m.SJC - YXU
3 stops23h 02mMultiple Airlines
Sun 19/106:00 a.m.YXU - SJC
2 stops28h 18mMultiple Airlines
Deal found 28/8C$ 1,053
Sun 12/107:15 a.m.SJC - YXU
2 stops32h 52mWestJet
Sun 19/106:00 a.m.YXU - SJC
2 stops12h 57mWestJet
Deal found 28/8C$ 1,140
Mon 1/910:15 a.m.SFO - YXU
2 stops15h 57mMultiple Airlines
Wed 3/99:45 p.m.YXU - SFO
1 stop14h 45mMultiple Airlines
Deal found 27/8C$ 1,187
Sun 31/812:43 a.m.SFO - YXU
2 stops17h 44mUnited Airlines
Wed 3/96:15 a.m.YXU - SFO
1 stop9h 43mUnited Airlines
Deal found 27/8C$ 1,854

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco Bay Area to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 28 August 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to London that are best for you.

Fly from

San Francisco Bay Area

Fly to

London

Route

Depart

Return

Price

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 9/10

7:30 a.m.-5:12 a.m.

1 stop18h 42m

London

Mon 13/10

8:00 p.m.-11:54 a.m.

1 stop18h 54m

C$ 761

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 9/10

10:15 a.m.-5:12 a.m.

3 stops15h 57m

London

Mon 13/10

8:00 p.m.-11:54 a.m.

1 stop18h 54m

C$ 798

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 19/2

8:35 a.m.-9:21 p.m.

1 stop9h 46m

London

Fri 20/2

5:45 a.m.-10:54 a.m.

1 stop8h 09m

C$ 826

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Wed 8/10

12:43 a.m.-9:27 p.m.

2 stops17h 44m

London

Mon 13/10

3:40 p.m.-7:45 a.m.

2 stops19h 05m

C$ 834

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Wed 18/2

12:32 a.m.-5:06 p.m.

2 stops13h 34m

London

Fri 20/2

5:45 a.m.-10:54 a.m.

1 stop8h 09m

C$ 987

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Sun 12/10

7:15 a.m.-9:17 a.m.

3 stops23h 02m

London

Sun 19/10

6:00 a.m.-7:18 a.m.

2 stops28h 18m

C$ 1,053

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Sun 12/10

7:15 a.m.-7:07 p.m.

2 stops32h 52m

London

Sun 19/10

6:00 a.m.-3:57 p.m.

2 stops12h 57m

C$ 1,140

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 12/10

7:10 a.m.-9:27 p.m.

2 stops11h 17m

C$ 228

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 11/10

7:10 a.m.-9:27 p.m.

2 stops11h 17m

C$ 228

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 12/10

4:55 p.m.-7:07 p.m.

3 stops47h 12m

C$ 292

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/8

Showing 1-10 of 12 results
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Best time to book a flight from San Francisco Bay Area to London

Have a flexible travel schedule? Discover the best time to fly to London from San Francisco Bay Area with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco Bay Area to London

What is the cheapest month to book a flight from San Francisco Bay Area to London, Ontario?

Currently, October is the cheapest month in which you can book a flight from San Francisco Bay Area to London, Ontario (average of C$ 243). Flying from San Francisco Bay Area to London, Ontario in December is currently the most expensive (average of C$ 478). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from San Francisco Bay Area to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to London from San Francisco Bay Area?

    If you book a flight to London from San Francisco Bay Area, you will be flying to London, which is the city’s only airport. London (YXU) is located 8.6 km from the centre of London.

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

    For as low as C$ 826, WestJet can have you in London, Ontario from San Francisco Bay Area in 9h 46m. The distance from San Francisco Bay Area to London, Ontario is about 3508 km. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from San Francisco Bay Area 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 Bay Area to London.

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

    Yes. Cheapflights offers flight deals from San Francisco Bay Area 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.

  • What is the cheapest month to book a flight from San Francisco Bay Area to London, Ontario?

    Currently, October is the cheapest month in which you can book a flight from San Francisco Bay Area to London, Ontario (average of C$ 243). Flying from San Francisco Bay Area to London, Ontario in December is currently the most expensive (average of C$ 478). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

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Fly with Cheapflights

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How does Cheapflights help users find flights from San Francisco Bay Area to London?

Cheapflights makes it easy to find San Francisco Bay Area to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from San Francisco Bay Area to London?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from San Francisco Bay Area.

Can Cheapflights find flights from San Francisco Bay Area to London with no change fees?

Certainly. Search results for flights to London from San Francisco Bay Area shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from San Francisco Bay Area to London become cheaper?

Yes! Start tracking prices for San Francisco Bay Area to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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