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Cheap flights from London, ON to San Francisco Bay Area from C$ 247

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SFO
25 Aug — 1 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to San Francisco Bay Area

Enter your travel dates to find the best prices.

Cheapest flights from London to San Francisco Bay Area
Explore the most affordable flight options available from London to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 July 2026.

Sat 5/96:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Sat 12/91:00 p.m.
SFO
-
YXU
1 stop13h 20m
WestJet
Deal found 22/7C$ 433
Thu 8/106:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Tue 13/106:00 a.m.
SFO
-
YXU
1 stop20h 20m
WestJet
Deal found 26/7C$ 437
Fri 16/106:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Tue 20/106:00 a.m.
SFO
-
YXU
1 stop20h 20m
WestJet
Deal found 26/7C$ 438
Thu 10/96:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Mon 14/96:00 a.m.
SFO
-
YXU
1 stop7h 45m
WestJet
Deal found 22/7C$ 452
Thu 10/95:40 a.m.
YXU
-
SFO
2 stops12h 41m
Air Canada
Mon 14/96:40 a.m.
SFO
-
YXU
2 stops12h 00m
Air Canada
Deal found 22/7C$ 475
Sun 6/96:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Sun 13/96:00 a.m.
SFO
-
YXU
1 stop20h 20m
WestJet
Deal found 23/7C$ 482
Tue 8/93:30 p.m.
YXU
-
SFO
2 stops22h 47m
Air Canada
Tue 15/911:35 a.m.
SFO
-
YXU
1 stop7h 05m
Air Canada
Deal found 24/7C$ 516
Fri 16/106:10 a.m.
YXU
-
SJC
2 stops12h 37m
WestJet
Tue 20/102:59 p.m.
SJC
-
YXU
2 stops11h 21m
WestJet
Deal found 26/7C$ 1,010
Sun 23/85:40 a.m.
YXU
-
SJC
2 stops20h 10m
United Airlines
Sun 30/86:20 a.m.
SJC
-
YXU
2 stops12h 20m
United Airlines
Deal found 23/7C$ 1,047
Tue 8/910:05 a.m.
YXU
-
SJC
2 stops15h 45m
United Airlines
Tue 15/96:30 a.m.
SJC
-
YXU
2 stops12h 10m
United Airlines
Deal found 25/7C$ 1,078
Mon 7/910:05 a.m.
YXU
-
SJC
2 stops15h 45m
United Airlines
Mon 14/96:30 a.m.
SJC
-
YXU
2 stops12h 10m
United Airlines
Deal found 24/7C$ 1,079
Thu 30/710:05 a.m.
YXU
-
SJC
2 stops28h 58m
United Airlines
Tue 4/81:10 p.m.
SJC
-
YXU
3 stops25h 32m
United Airlines
Deal found 24/7C$ 1,439

Find flight deals from London to San Francisco Bay Area

Keep the following information in mind while searching for London to San Francisco Bay Area flight deals. Data was last updated 26 July 2026.

Round-trip from

C$ 433

One-way from

C$ 247

Popular in

September

Cheapest in

August

Average price

C$ 547
WestJet
  • WestJet
  • 5/9-12/9
  • 2 total stops
  • 22h 10m total
  • London to San Francisco Bay Area
Search Deals
Air Canada
  • Air Canada
  • 9/9
  • 1 total stop
  • 9h 54m total
  • London to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease (C$ 120 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to San Francisco Bay Area 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 26 July 2026.
Use the filters below to find and compare flights from London to San Francisco Bay Area that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSan Francisco

YXU - SFO

YXUSFO

London

Sat 5/9

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Sat 12/9

1:00 p.m.-5:20 a.m.

1 stop13h 20m

C$ 433

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 8/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Tue 13/10

6:00 a.m.-5:20 a.m.

1 stop20h 20m

C$ 437

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 16/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Tue 20/10

6:00 a.m.-5:20 a.m.

1 stop20h 20m

C$ 438
Quickest round-trip

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 10/9

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Mon 14/9

6:00 a.m.-4:45 p.m.

1 stop7h 45m

C$ 454

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 10/9

3:30 p.m.-8:59 p.m.

1 stop8h 29m

San Francisco

Mon 14/9

6:40 a.m.-9:40 p.m.

2 stops12h 00m

C$ 475

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 9/10

3:30 p.m.-10:51 p.m.

2 stops10h 21m

San Francisco

Mon 12/10

11:30 p.m.-2:55 p.m.

2 stops12h 25m

C$ 575

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 20/8

5:40 a.m.-3:35 p.m.

2 stops12h 55m

San Francisco

Thu 27/8

10:51 p.m.-9:20 a.m.

1 stop7h 29m

C$ 585

LondonSan Jose

YXU - SJC

YXUSJC

London

Fri 16/10

6:10 a.m.-3:47 p.m.

2 stops12h 37m

San Jose

Tue 20/10

2:59 p.m.-5:20 a.m.

2 stops11h 21m

C$ 1,010

LondonSan Jose

YXU - SJC

YXUSJC

London

Sun 6/9

3:30 p.m.-10:50 p.m.

2 stops10h 20m

San Jose

Sun 13/9

6:37 p.m.-5:43 p.m.

2 stops20h 06m

C$ 1,047

LondonSan Jose

YXU - SJC

YXUSJC

London

Sat 5/9

5:40 a.m.-1:08 p.m.

2 stops10h 28m

San Jose

Sat 12/9

6:30 a.m.-9:40 p.m.

2 stops12h 10m

C$ 1,047

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/7

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from London to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from London 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 London to San Francisco Bay Area

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco Bay Area. Reviews last updated 26 July 2026.
Read through reviews of airlines operating flights from London to San Francisco Bay Area, such as WestJet and Air Canada. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,415 reviews
Check prices

Comfort

7.0

Food

6.2

Overall

7.2

Boarding

7.4

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2023

YYC - PSP

Can never get the influential entertainment to work on the app. Super disappointing.
WestJet
7.2
Good
3,415 reviews
WestJet
7.2
Good
3,415 reviews
Check prices

Comfort

7.0

Food

6.2

Overall

7.2

Boarding

7.4

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2023

YYC - PSP

Can never get the influential entertainment to work on the app. Super disappointing.
Air Canada
7.1
Good
11,387 reviews
WestJet
7.2
Good
3,415 reviews
Check prices

Comfort

7.0

Food

6.2

Overall

7.2

Boarding

7.4

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2023

YYC - PSP

Can never get the influential entertainment to work on the app. Super disappointing.

Related info for your journey

Find useful and relevant information for your journey from London to San Francisco Bay Area. 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 from for flights from London to San Francisco Bay Area?

    Located just 8.6 km from the city centre, London (YXU) is the airport most travellers will use when flying to San Francisco Bay Area from London.

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

    A quick flight from London, Ontario to San Francisco Bay Area can take about 8h 50m. WestJet provides one of the quickest options available for as low as C$ 433. The distance between London, Ontario and San Francisco Bay Area is about 3508 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from London, Ontario to San Francisco Bay Area?

    The most popular route from London, Ontario to San Francisco Bay Area is London - San Francisco. You may also consider London - San Jose or London - Santa Rosa Sonoma County.

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

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

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

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

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

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

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Top 2 airlines flying from London to San Francisco Bay Area

Discover the top 2 airlines that operate flights from London to San Francisco Bay Area. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 26 July 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 224AverageC$ 450FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 260AverageC$ 492FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

When you search for this flight from London to San Francisco Bay Area, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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 San Francisco Bay Area from London.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to San Francisco Bay Area flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on London to San Francisco Bay Area flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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