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£376+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
— SFO
8 Jul — 15 Jul1
1 adult

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 3 July 2025.

Return from

£391

One-way from

£376

Popular in

July

Cheapest in

February

Average price

£657

Good round-trip deal

£439 or less

Good one-way deal

£517 or less
SWISS
  • SWISS
  • 24/8-9/9
  • 2 total stops
  • 32h 30m total
  • London to San Francisco
19/10
  • 19/10
  • 1 total stop
  • 18h 12m total
  • London to San Francisco
Highest demand for flights based on searches. 18% potential increase in price (£80 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
Average for return flights in July 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.

Find flight deals to San Francisco

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 3 July 2025.

Sun 24/806:00LHR - SFO
1 stop18h 10mSWISS
Tue 9/919:30SFO - LHR
1 stop14h 20mSWISS
Deal found 30/6£391
Tue 16/916:25LGW - SFO
1 stop30h 10mTAP AIR PORTUGAL
Tue 30/916:20SFO - LGW
1 stop15h 15mTAP AIR PORTUGAL
Deal found 1/7£391
Sat 22/1108:40LCY - SFO
1 stop15h 45mSWISS
Sat 6/1219:25SFO - LCY
1 stop13h 40mSWISS
Deal found 2/7£391
Sun 31/806:30LHR - SFO
1 stop17h 25mMultiple Airlines
Sat 27/913:45SFO - LHR
1 stop14h 05mMultiple Airlines
Deal found 2/7£392
Wed 17/918:35LGW - SFO
1 stop29h 35mSWISS
Sun 21/919:30SFO - LGW
1 stop14h 20mSWISS
Deal found 30/6£392
Wed 8/1008:40LHR - SFO
1 stop15h 55mUnited Airlines
Wed 5/1112:50SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 30/6£393
Fri 29/810:55LGW - SFO
1 stop31h 45mMultiple Airlines
Sun 31/811:45SFO - LGW
1 stop15h 10mMultiple Airlines
Deal found 2/7£398
Tue 25/1108:55LHR - SFO
2 stops19h 55mAir Canada
Tue 2/1207:30SFO - LHR
2 stops19h 50mAir Canada
Deal found 30/6£403
Sun 24/810:45LHR - SFO
Nonstop11h 05mBritish Airways
Tue 9/919:20SFO - LHR
Nonstop10h 25mBritish Airways
Deal found 30/6£404
Wed 3/907:30LHR - SFO
1 stop16h 30mLufthansa
Tue 23/905:00SFO - LHR
2 stops17h 45mLufthansa
Deal found 2/7£406
Mon 15/916:15LHR - SFO
Nonstop11h 00mBrussels Airlines
Fri 26/919:50SFO - LHR
Nonstop10h 20mBrussels Airlines
Deal found 30/6£409
Mon 15/912:20LHR - SFO
Nonstop11h 05mAustrian Airlines
Fri 26/913:05SFO - LHR
Nonstop10h 20mAustrian Airlines
Deal found 2/7£411

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 3 July 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

Sun 24/8

06:00-16:10

1 stop18h 10m

San Francisco

Tue 9/9

19:30-17:50

1 stop14h 20m

£391

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 16/9

16:25-14:35

1 stop30h 10m

San Francisco

Tue 30/9

16:20-15:35

1 stop15h 15m

£391

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Sat 22/11

08:40-16:25

1 stop15h 45m

San Francisco

Sat 6/12

19:25-17:05

1 stop13h 40m

£391

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 31/8

06:30-15:55

1 stop17h 25m

San Francisco

Sat 27/9

13:45-11:50

1 stop14h 05m

£392

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 17/9

18:35-16:10

1 stop29h 35m

San Francisco

Sun 21/9

19:30-17:50

1 stop14h 20m

£392

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Sat 30/8

10:45-10:40

1 stop31h 55m

San Francisco

Wed 24/9

11:12-10:55

1 stop15h 43m

£393

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 8/10

08:40-16:35

1 stop15h 55m

San Francisco

Wed 5/11

12:50-07:25

Nonstop10h 35m

£393

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 24/8

06:30-12:40

1 stop14h 10m

San Francisco

Tue 9/9

16:05-10:25

Nonstop10h 20m

£399

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 25/11

08:55-20:50

2 stops19h 55m

San Francisco

Tue 2/12

07:30-11:20

2 stops19h 50m

£403

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 24/8

10:45-13:50

Nonstop11h 05m

San Francisco

Tue 9/9

19:20-13:45

Nonstop10h 25m

£404

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 45 results
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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 27 June 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 15 hours 30 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 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 3 July 2025.
Check out reviews from past customers who have flown Delta, KLM, andAustrian 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.

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 41 daily flights from 17 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 £35, while return flights cost around £36.

  • How much is a return flight to San Francisco?

    A return flight to San Francisco will typically cost around £173, however they can be found for as little as £49.

  • 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 (10 hours 20 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
Vallejo
Newark
South San Francisco
Bodega Bay
Pacific Grove
Union City

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