£366+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
— SFO
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to San Francisco in 2025

Enter your travel dates to find the best prices.

Cheapest flights to San Francisco
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 30 December 2025.

Tue 30/1215:00LHR - SFO
1 stop15h 51mAmerican Airlines
Sat 10/122:30SFO - LHR
1 stop15h 40mAmerican Airlines
Deal found 29/12£620
Tue 30/1215:00LHR - SFO
1 stop15h 51mAmerican Airlines
Tue 13/107:30SFO - LHR
1 stop14h 50mAmerican Airlines
Deal found 28/12£621
Wed 31/1214:10LHR - SFO
1 stop17h 11mIberia
Sat 14/208:00SFO - LHR
1 stop14h 50mIberia
Deal found 28/12£625
Tue 30/1206:05LHR - SFO
2 stops25h 16mBritish Airways
Tue 6/113:25SFO - LHR
1 stop24h 45mBritish Airways
Deal found 29/12£626
Mon 29/1219:40LHR - SFO
2 stops35h 41mBritish Airways
Sat 10/122:30SFO - LHR
1 stop27h 10mBritish Airways
Deal found 29/12£633
Tue 30/1206:05LHR - SFO
2 stops25h 16mBritish Airways
Fri 9/107:30SFO - LHR
2 stops23h 25mBritish Airways
Deal found 29/12£636
Wed 31/1219:05LHR - SFO
1 stop36h 16mIberia
Tue 31/306:00SFO - LHR
1 stop16h 20mIberia
Deal found 29/12£639
Wed 31/1218:00LHR - SFO
1 stop28h 10mBritish Airways
Wed 7/122:30SFO - LHR
1 stop15h 40mBritish Airways
Deal found 29/12£640
Mon 29/1211:45LGW - SFO
2 stops43h 36mBritish Airways
Mon 12/113:59SFO - LGW
2 stops45h 01mBritish Airways
Deal found 29/12£641
Wed 31/1208:20LHR - SFO
1 stop23h 01mMultiple Airlines
Sat 10/113:00SFO - LHR
1 stop25h 10mMultiple Airlines
Deal found 30/12£645
Wed 31/1214:10LHR - SFO
1 stop17h 11mMultiple Airlines
Sat 14/217:30SFO - LHR
Nonstop10h 30mMultiple Airlines
Deal found 28/12£647
Wed 31/1211:20LHR - SFO
1 stop20h 01mIberia
Wed 14/108:00SFO - LHR
1 stop16h 35mIberia
Deal found 29/12£650

Find flight deals to San Francisco

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 30 December 2025.

Return from

£442

One-way from

£366

Popular in

July

Cheapest in

September

Average price

£616

Good round-trip deal

£541 or less

Good one-way deal

£555 or less
Finnair
  • Finnair
  • 16/1-22/1
  • 4 total stops
  • 39h 52m total
  • London to San Francisco
Lufthansa
  • Lufthansa
  • 11/4
  • 1 total stop
  • 14h 10m total
  • London to San Francisco
Highest demand for flights based on searches. 13% potential increase in price (£74 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Average for return flights in December 2025
Price to beat on a round-trip flight from London to San Francisco.
Price to beat on a one-way flight from London to San Francisco.

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 30 December 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

Wed 25/2

17:00-14:35

1 stop29h 35m

San Francisco

Sat 7/3

16:40-18:50

2 stops18h 10m

£443

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Sun 1/2

19:25-15:35

1 stop28h 10m

San Francisco

Sun 15/2

18:20-18:35

1 stop16h 15m

£447

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 24/2

10:35-19:48

1 stop17h 13m

San Francisco

Sat 7/3

17:30-12:00

Nonstop10h 30m

£453

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 30/3

20:35-00:52

2 stops36h 17m

San Francisco

Fri 17/4

10:19-14:25

1 stop20h 06m

£457

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Fri 6/2

18:05-15:35

1 stop29h 30m

San Francisco

Sat 14/2

17:20-10:25

1 stop33h 05m

£459

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Sat 24/1

06:00-15:35

1 stop17h 35m

San Francisco

Sat 31/1

17:20-18:15

1 stop16h 55m

£462

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 8/4

16:55-21:04

1 stop36h 09m

San Francisco

Sat 9/5

10:19-08:05

1 stop13h 46m

£462

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 2/6

06:30-11:45

1 stop13h 15m

San Francisco

Sun 14/6

23:45-07:10

1 stop23h 25m

£463

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 5/4

14:05-21:21

1 stop15h 16m

San Francisco

Tue 21/4

12:55-07:25

Nonstop10h 30m

£465

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/1

09:00-16:30

1 stop15h 30m

San Francisco

Mon 2/2

12:50-07:25

Nonstop10h 35m

£465

Flights are sorted by cheapest return flights first.

Deals found on 29/12

Showing 1-10 of 60 results
1
2
3
...
6

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 26 December 2025.

Booking 51 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 58 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.

Weekly flight availability to San Francisco

The most flights from London to San Francisco are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 on average).

What are the cheapest airlines that fly to San Francisco?

The cheapest airlines flying from London to San Francisco are Delta, Air Canada and United Airlines.

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 30 December 2025.
Check out reviews from past customers who have flown KLM, Virgin Atlantic, andUnited Airlines 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.

Boarding

7.7

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.7

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.7

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.7

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.7

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.7

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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.

  • What airport do you fly into for flights to San Francisco?

    For a flight to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city. Booking flights from London to San Francisco should be relatively easy as there are 31 daily flights from 18 different airlines.

  • Can I find cheaper flights to San Francisco if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to San Francisco on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to San Francisco?

    Based on reviews from Cheapflights users, Delta is rated the highest out of the airlines that fly to San Francisco.

  • What is the cheapest airport to fly to in San Francisco?

    San Francisco is currently the cheapest airport to fly to in San Francisco. One-way flights to San Francisco typically cost £40, while return flights cost around £79.

  • How much is a return flight to San Francisco?

    A return flight to San Francisco will typically cost around £160, however they can be found for as little as £79.

  • Where does the fastest flight to San Francisco depart from?

    For those looking to save time traveling to San Francisco, London offers the quickest one-way flight (11 hours 0 minutes).

  • Does San Francisco have car hire?

    Yes. Those touching down at San Francisco can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to San Francisco?

    Yes. San Francisco has hotels nearby for those requiring accommodations. Grand Hyatt At Sfo is the closest property to San Francisco (1.0 mi away from San Francisco).

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale
Pacific Grove

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to San Francisco?

When you search for this flight to San Francisco, 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 best flight for you.

Why should you use Cheapflights to find cheap flight tickets to San Francisco?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to San Francisco for you. Better yet — we are completely free to use.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.