Cheap flights from London, ON to San Francisco from C$ 202
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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from London to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 July 2025.
Round-trip from | C$ 380 |
---|---|
One-way from | C$ 202 |
Popular in | December |
Cheapest in | May |
Average price | C$ 611 |
Find flight deals from London to San Francisco
Cheapest flights from London to San FranciscoExplore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.
Explore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from London to San Francisco 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 3 July 2025.
Use the filters below to find and compare flights from London to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonSan Francisco
YXU - SFO
YXUSFO
London
Sat 16/8
6:00 a.m.-11:56 a.m.
1 stop8h 56m
San Francisco
Sat 23/8
2:45 p.m.-5:14 a.m.
2 stops11h 29m
LondonSan Francisco
YXU - SFO
YXUSFO
London
Wed 10/12
9:25 a.m.-3:15 p.m.
1 stop8h 50m
San Francisco
Wed 7/1
6:00 p.m.-8:46 a.m.
2 stops11h 46m
LondonSan Francisco
YXU - SFO
YXUSFO
London
Sat 11/10
6:00 a.m.-11:54 a.m.
1 stop8h 54m
San Francisco
Fri 17/10
7:30 a.m.-7:07 p.m.
1 stop8h 37m
LondonSan Francisco
YXU - SFO
YXUSFO
London
Sun 14/12
5:45 a.m.-10:59 a.m.
1 stop8h 14m
San Francisco
Wed 31/12
12:32 a.m.-5:06 p.m.
2 stops13h 34m
LondonSan Francisco
YXU - SFO
YXUSFO
London
Sat 16/8
6:00 a.m.-1:59 p.m.
2 stops10h 59m
San Francisco
Sat 23/8
10:15 a.m.-5:14 a.m.
3 stops15h 59m
LondonSan Francisco
YXU - SFO
YXUSFO
London
Sun 17/8
6:00 a.m.-11:56 a.m.
1 stop8h 56m
LondonSan Francisco
YXU - SFO
YXUSFO
London
Fri 15/8
9:45 p.m.-9:25 p.m.
3 stops26h 40m
LondonSan Francisco
YXU - SFO
YXUSFO
London
Sat 16/8
6:15 a.m.-10:38 p.m.
3 stops19h 23m
Best time to book a flight from London to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from London with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London to San Francisco
What is the cheapest month to book a flight from London, Ontario to San Francisco?
Currently, January is the cheapest month in which you can book a flight from London, Ontario to San Francisco (average of C$ 276). Flying from London, Ontario to San Francisco 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 SFO?
Find hourly flight availability from London to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 July 2025.
When flying from London, Ontario to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 20% versus a flight in the afternoon.
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. 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. Reviews last updated 3 July 2025.
Read through reviews of airlines operating flights from London to San Francisco, such as Delta,United Airlines, andWestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Entertainment
Comfort
Food
Overall
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from London to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for London to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from London to San Francisco
Discover the top 3 airlines that operate flights from London to San Francisco. 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 3 July 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from London to San Francisco?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from London to San Francisco?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to San Francisco.
Can Cheapflights find flights from London to San Francisco with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from London to San Francisco flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from London to San Francisco become cheaper?
Of course! You can now track prices for flights from London to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.