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£347+ Cheap flights to San Francisco
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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
— SFO
13 Oct — 20 Oct1
Flights to San Francisco in 2025
Find the latest flights to San Francisco in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 13 September 2025.
Find flight deals to San Francisco
Cheapest flights to San FranciscoExplore the most affordable flight options available to San Francisco. Find the lowest fares based on data from user searches, with prices last updated on 13 September 2025.
Explore the most affordable flight options available to San Francisco. Find the lowest fares based on data from user searches, with prices last updated on 13 September 2025.
Fri 19/906:00LHR - SFO
1 stop18h 35mSWISS
Tue 23/919:30SFO - LHR
1 stop14h 20mSWISS
Deal found 13/9£393
Fri 26/916:15LHR - SFO
Nonstop11h 05mUnited Airlines
Sat 11/1013:05SFO - LHR
Nonstop10h 20mUnited Airlines
Deal found 11/9£394
Fri 19/909:30LHR - SFO
1 stop18h 21mUnited Airlines
Thu 2/1011:19SFO - LHR
1 stop14h 21mUnited Airlines
Deal found 12/9£395
Wed 1/1015:05LGW - SFO
1 stop16h 54mAmerican Airlines
Tue 7/1010:12SFO - LGW
1 stop13h 58mAmerican Airlines
Deal found 13/9£395
Sat 20/910:35LHR - SFO
Nonstop11h 05mUnited Airlines
Fri 3/1016:05SFO - LHR
Nonstop10h 20mUnited Airlines
Deal found 13/9£395
Fri 19/915:05LGW - SFO
1 stop16h 54mAmerican Airlines
Thu 2/1010:22SFO - LGW
1 stop13h 48mAmerican Airlines
Deal found 11/9£396
Sat 8/1108:40LCY - SFO
1 stop15h 50mSWISS
Sat 15/1119:25SFO - LCY
1 stop13h 40mSWISS
Deal found 13/9£396
Thu 30/1018:40LGW - SFO
1 stop29h 50mSWISS
Mon 3/1119:25SFO - LGW
1 stop14h 25mSWISS
Deal found 11/9£397
Thu 30/1009:15LCY - SFO
1 stop15h 15mSWISS
Tue 4/1119:25SFO - LCY
1 stop13h 40mSWISS
Deal found 11/9£397
Wed 24/906:30LHR - SFO
1 stop13h 15mDelta
Thu 9/1012:35SFO - LHR
1 stop13h 25mDelta
Deal found 12/9£398
Mon 3/1118:40LGW - SFO
1 stop29h 50mSWISS
Mon 17/1119:25SFO - LGW
1 stop14h 25mSWISS
Deal found 12/9£398
Sun 28/919:05LHR - SFO
1 stop22h 19mBritish Airways
Sat 4/1022:30SFO - LHR
1 stop24h 10mBritish Airways
Deal found 11/9£398
Cheapflights Fare Finder
Locate flights to San Francisco that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 13 September 2025.
Use the filters below to find and compare flights to San Francisco that are best for you.
Fly from
London
Route
Depart
Return
Price
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Thu 25/9
10:35-13:40
Nonstop11h 05m
San Francisco
Thu 9/10
19:50-14:10
Nonstop10h 20m
£394
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Wed 5/11
11:40-14:40
Nonstop11h 00m
San Francisco
Wed 12/11
16:30-10:40
Nonstop10h 10m
£394
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Fri 26/9
10:35-13:40
Nonstop11h 05m
San Francisco
Mon 6/10
13:05-07:25
Nonstop10h 20m
£394
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Wed 14/1
13:45-17:00
Nonstop11h 15m
San Francisco
Wed 21/1
17:25-12:00
Nonstop10h 35m
£394
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 1/11
13:45-18:00
Nonstop11h 15m
San Francisco
Sat 15/11
12:50-07:25
Nonstop10h 35m
£394
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 27/9
10:35-13:40
Nonstop11h 05m
San Francisco
Sat 4/10
08:25-06:20
1 stop13h 55m
£394
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Thu 25/9
16:15-19:15
Nonstop11h 00m
San Francisco
Sun 5/10
13:05-07:25
Nonstop10h 20m
£394
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Fri 13/2
13:45-17:00
Nonstop11h 15m
San Francisco
Fri 20/2
12:50-07:25
Nonstop10h 35m
£394
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 27/9
10:35-13:40
Nonstop11h 05m
San Francisco
Sat 11/10
13:05-07:25
Nonstop10h 20m
£394
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 1/11
06:30-12:50
1 stop13h 20m
San Francisco
Tue 25/11
00:45-07:05
1 stop22h 20m
£398
Showing 1-10 of 60 results
Best time to book a flight to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco with our price prediction graph.
Estimated return 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 to San Francisco
When is the best time to book a flight to San Francisco?
Use this chart to determine the optimal time to book a return flight from London to San Francisco. Price data was last updated on 29 August 2025.
Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
How long is the flight to San Francisco?
On average, a flight from London to San Francisco takes 16 hours 40 minutes. Flights to San Francisco from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.
When is the cheapest time to fly to San Francisco?
Use this chart to determine the cheapest time to fly return from London to San Francisco. Price data was last updated on 16 December 2024.
Users looking for the lowest fares to San Francisco should consider flying on Friday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday evenings, when prices are usually at their highest.
Weekly flight availability to San Francisco
The most flights from London to San Francisco are scheduled on a Monday (42 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (36 on average).
What are the most popular airlines that fly to San Francisco?
The most popular airlines flying from London to San Francisco are Virgin Atlantic, British Airways and Lufthansa.
What are the cheapest airlines that fly to San Francisco?
The cheapest airlines flying from London to San Francisco are Delta, TAP AIR PORTUGAL and SWISS.
Rainfall in San Francisco by month
Plan your trip to San Francisco by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches 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 when rainfall is around 0.0 mm.
Temperature in San Francisco by month
Plan your trip to San Francisco by taking into account the average temperature totals by month.
If weather is an important factor for your trip to San Francisco, 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
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 13 September 2025.
Check out reviews from past customers who have flown KLM, United Airlines, andVirgin Atlantic to the United States to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.3
Crew
8.4
Overall
7.8
Comfort
7.7
Boarding
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
Food
7.3
Crew
8.4
Overall
7.8
Comfort
7.7
Boarding
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
Food
7.3
Crew
8.4
Overall
7.8
Comfort
7.7
Boarding
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
Food
7.3
Crew
8.4
Overall
7.8
Comfort
7.7
Boarding
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
Food
7.3
Crew
8.4
Overall
7.8
Comfort
7.7
Boarding
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
Food
7.3
Crew
8.4
Overall
7.8
Comfort
7.7
Boarding
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
FAQs about flying to San Francisco
San Francisco airport overview
San Francisco International Airport is located 21km (13 miles) south of downtown San Francisco and is the largest airport in the Bay Area and the second-busiest airport in California.
Comprising four terminals – Terminals 1, 2, 3 and the International Terminal – that form a ring around a multi-storey Domestic Parking garage, San Francisco International is easy to navigate. Terminals 1-3 handle all domestic flights, while the International Terminal mainly manages international flights. Customs, immigrations and baggage claims are generally fast; staff are friendly, signage is good and transport to and from the airport is excellent. Delays are common, though, due to the region’s adverse weather patterns; however, there are plans to extend the runways in order to aid aircraft flying in low visibility conditions.
San Francisco International is clean and modern. With its newly revamped Terminal 2 housing an award-winning aviation museum and library, along with an extensive array of retail, dining, entertainment and health establishments, it is truly a world-class facility.
Flights to San Francisco International Airport comes from a number of destinations worldwide, including Toronto, Paris, Tokyo, London, Hong Kong, Seoul, Lima, Frankfurt, Singapore, San Salvador, Beijing, Mexico City, Sydney and Cancun, in addition to numerous domestic routes.
Travelling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSanta Cruz
Newark
South San Francisco
Bodega Bay
Pacific Grove
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Some of the lowest fares we’ve come across for flights to San Francisco.
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How does Cheapflights help users find flights to San Francisco?
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Why should you use Cheapflights to find cheap flight tickets to San Francisco?
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Can Cheapflights find flights to San Francisco with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights to San Francisco flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights to San Francisco become cheaper?
Not ready to book yet? You can track prices for flights to San Francisco on Cheapflights with our Price Alerts feature and get notified when better prices are available.