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Cheap flights from London, ON to San Francisco Bay Area from C$ 240

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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SFO
6 May — 13 May1
1 adult

Cheap 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 1 May 2025.

Round-trip from

C$ 450

One-way from

C$ 240

Popular in

December

Cheapest in

June

Average price

C$ 366
WestJet
  • WestJet
  • 14/5-21/5
  • 3 total stops
  • 30h 34m total
  • London to San Francisco Bay Area
Search Deals
Air Canada
  • Air Canada
  • 14/6
  • 1 total stop
  • 7h 57m total
  • London to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (C$ 233 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from London to San Francisco Bay Area

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 1 May 2025.

Wed 14/58:00 p.m.YXU - SFO
1 stop19h 05mWestJet
Wed 21/52:45 p.m.SFO - YXU
2 stops11h 29mWestJet
Deal found 30/4C$ 450
Wed 14/56:15 a.m.YXU - SFO
1 stop7h 50mUnited Airlines
Tue 20/512:10 a.m.SFO - YXU
2 stops11h 53mUnited Airlines
Deal found 30/4C$ 578
Wed 9/76:00 a.m.YXU - SJC
2 stops16h 20mMultiple Airlines
Tue 29/710:00 a.m.SJC - YXU
2 stops16h 14mMultiple Airlines
Deal found 30/4C$ 782
Thu 10/76:15 a.m.YXU - SJC
3 stops14h 03mUnited Airlines
Thu 14/86:24 p.m.SJC - YXU
2 stops19h 43mUnited Airlines
Deal found 30/4C$ 929
Wed 14/58:00 p.m.YXU - SFO
3 stops17h 22mMultiple Airlines
Wed 21/52:45 p.m.SFO - YXU
2 stops11h 29mMultiple Airlines
Deal found 30/4C$ 1,433

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 1 May 2025.
Use the filters below to find and compare flights from London to San Francisco Bay Area that are best for you.

Fly from

London

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 14/5

8:00 p.m.-12:05 p.m.

1 stop19h 05m

San Francisco

Wed 21/5

2:45 p.m.-5:14 a.m.

2 stops11h 29m

C$ 450

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 14/5

6:15 a.m.-11:05 a.m.

1 stop7h 50m

San Francisco

Tue 20/5

12:10 a.m.-3:03 p.m.

2 stops11h 53m

C$ 578

LondonSan Jose

YXU - SJC

YXUSJC

London

Wed 9/7

6:00 a.m.-7:20 p.m.

2 stops16h 20m

San Jose

Tue 29/7

10:00 a.m.-5:14 a.m.

2 stops16h 14m

C$ 782

LondonSan Jose

YXU - SJC

YXUSJC

London

Thu 10/7

6:15 a.m.-5:18 p.m.

3 stops14h 03m

San Jose

Thu 14/8

6:24 p.m.-5:07 p.m.

2 stops19h 43m

C$ 929

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 14/5

8:00 p.m.-10:22 a.m.

3 stops17h 22m

San Francisco

Wed 21/5

2:45 p.m.-5:14 a.m.

2 stops11h 29m

C$ 1,433

LondonSan Francisco

YXU - SFO

YXUSFO

London

Sat 14/6

6:15 a.m.-11:12 a.m.

1 stop7h 57m

C$ 240

LondonSan Francisco

YXU - SFO

YXUSFO

London

Sat 14/6

8:00 p.m.-1:59 p.m.

3 stops20h 59m

C$ 477

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/4

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

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

Currently, January is the cheapest month in which you can book a flight from London, Ontario to San Francisco Bay Area (average of C$ 276). Flying from London, Ontario to San Francisco Bay Area in December is currently the most expensive (average of C$ 368). 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.

What is the cheapest time of day to fly from YXU to XIH?

Find hourly flight availability from London to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 May 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to San Francisco Bay Area as you normally would.

Rainfall in San Francisco Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco Bay Area ranges from 0.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco Bay Area when rainfall is around 0.0 mm.

Temperature in San Francisco Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco Bay Area, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 1 May 2025.
United Airlines
7.4
Good
8,696 reviews
Check prices

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
WestJet
7.2
Good
2,826 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.0
Good
9,252 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from London, Ontario to San Francisco Bay Area (average of C$ 276). Flying from London, Ontario to San Francisco Bay Area in December is currently the most expensive (average of C$ 368). 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

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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 1 May 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 308AverageC$ 501FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 366AverageC$ 618FlexibilityNo 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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