$193+ Cheap flights from San Francisco (SFO) to London, ON (YXU)
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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San Francisco to London with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to London
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to London (YXU). 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 January 2, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $313 (Justfly.com) |
One-way from | $193 (United Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $192 |
Find flight deals from San Francisco to London
Cheapest flights from San Francisco to LondonExplore the most affordable flight options available from San Francisco to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 2, 2025.
Explore the most affordable flight options available from San Francisco to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 2, 2025.
This Justfly.com deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from San Francisco to London within your budget
Customize your flight search to find flights from San Francisco 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 2,558,603 searches. Data last updated January 2, 2025.
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoLondon
SFO - YXU
SFOYXU
San Francisco
Tue 4/29
7:30 am-7:09 pm
1 stop8h 39m
London
Tue 6/3
6:00 am-12:05 pm
1 stop9h 05m
San FranciscoLondon
SFO - YXU
SFOYXU
San Francisco
Fri 2/21
10:50 pm-9:15 am
1 stop7h 25m
London
Tue 3/4
5:45 am-10:52 am
1 stop8h 07m
San FranciscoLondon
SFO - YXU
SFOYXU
San Francisco
Fri 2/21
11:55 pm-8:20 pm
2 stops17h 25m
London
Wed 3/5
5:45 am-10:52 am
1 stop8h 07m
San FranciscoLondon
SFO - YXU
SFOYXU
San Francisco
Sat 2/1
7:10 pm-7:13 pm
2 stops21h 03m
London
Fri 2/7
8:00 pm-6:25 pm
3 stops25h 25m
San FranciscoLondon
SFO - YXU
SFOYXU
San Francisco
Sun 2/16
4:56 pm-2:50 pm
2 stops18h 54m
- 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.
Travel insights for flights from San Francisco to London
Get recent, data-driven insights about flights from San Francisco to London including ideal travel times, pricing trends, and more.
What is the cheapest time of day to fly from SFO to YXU?
Find hourly flight availability from San Francisco to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 2, 2025.
One of the essential ways to save on airfare from San Francisco to London, Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 39% on airfare.
Rainfall in London by month
Plan your trip to London by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in London, Ontario ranges from 2.8 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. March is typically the driest time to visit London, Ontario when rainfall is around 2.8 in.
Temperature in London by month
Plan your trip to London by taking into account the average temperature totals by month.
If weather is an important factor for your trip to London, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. 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 London. Reviews last updated January 2, 2025.
Entertainment
Comfort
Food
Overall
Crew
Boarding
Reviews
I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
Entertainment
Comfort
Food
Overall
Crew
Boarding
Reviews
I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
Entertainment
Comfort
Food
Overall
Crew
Boarding
Reviews
I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
Entertainment
Comfort
Food
Overall
Crew
Boarding
Reviews
I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to London. 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 San Francisco to London
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from San Francisco to London
Discover the top 2 airlines that operate flights from San Francisco to London. 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 2,558,603 searches. Data last updated January 2, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$207 | Average$811 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$306 | Average$501 | FlexibilityNo cancel fee | On-time60% |