£368+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
— SFO
21 Jan — 28 Jan1
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 22 December 2025.

Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Fri 9/119:10SFO - LHR
1 stop19h 30mTAP AIR PORTUGAL
Deal found 20/12£478
Sat 27/1210:05LHR - SFO
Nonstop11h 15mMultiple Airlines
Tue 30/1219:25SFO - LHR
1 stop14h 25mMultiple Airlines
Deal found 20/12£482
Sat 27/1210:05LHR - SFO
Nonstop11h 15mBrussels Airlines
Wed 31/1208:25SFO - LHR
1 stop13h 30mBrussels Airlines
Deal found 21/12£485
Fri 26/1211:45LHR - SFO
Nonstop11h 15mBritish Airways
Sat 10/117:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 20/12£487
Thu 25/1219:55LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Sat 10/116:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 22/12£487
Sat 27/1213:45LHR - SFO
Nonstop11h 15mAustrian Airlines
Thu 1/108:20SFO - LHR
1 stop14h 20mAustrian Airlines
Deal found 21/12£489
Fri 26/1213:45LHR - SFO
Nonstop11h 15mAustrian Airlines
Thu 1/108:20SFO - LHR
1 stop14h 20mAustrian Airlines
Deal found 21/12£493
Sat 27/1210:05LHR - SFO
Nonstop11h 15mLufthansa
Sun 4/112:50SFO - LHR
Nonstop10h 35mLufthansa
Deal found 20/12£495
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Sat 10/116:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 21/12£496
Thu 25/1216:30LHR - SFO
1 stop31h 35mTAP AIR PORTUGAL
Fri 23/119:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 20/12£496
Thu 25/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Thu 8/116:40SFO - LHR
1 stop17h 00mScandinavian Airlines
Deal found 21/12£498
Tue 23/1213:40LHR - SFO
1 stop32h 50mTAP AIR PORTUGAL
Wed 31/1216:35SFO - LHR
1 stop34h 50mTAP AIR PORTUGAL
Deal found 20/12£502

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 22 December 2025.

Return from

£472

One-way from

£368

Popular in

July

Cheapest in

September

Average price

£620

Good round-trip deal

£566 or less

Good one-way deal

£540 or less
British Airways
  • British Airways
  • 22/5-29/5
  • 1 total stop
  • 25h 47m total
  • London to San Francisco
28/1
  • 28/1
  • 3 total stops
  • 29h 30m total
  • London to San Francisco
Highest demand for flights based on searches. 13% potential increase in price (£75 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 22 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

Tue 2/6

10:45-13:50

Nonstop11h 05m

San Francisco

Wed 17/6

09:15-06:50

1 stop13h 35m

£474

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 13/4

19:50-14:40

2 stops26h 50m

San Francisco

Sun 19/4

16:45-17:40

1 stop16h 55m

£477

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Fri 30/1

16:40-14:45

1 stop30h 05m

San Francisco

Mon 2/2

16:35-15:45

1 stop15h 10m

£488

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 1/4

14:20-17:30

Nonstop11h 10m

San Francisco

Wed 15/4

10:41-07:20

1 stop12h 39m

£489

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 4/2

14:25-16:30

2 stops34h 05m

San Francisco

Tue 10/2

19:25-17:50

1 stop14h 25m

£491

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 4/2

09:35-16:05

2 stops62h 30m

San Francisco

Wed 11/2

16:35-09:50

1 stop33h 15m

£491

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 19/5

06:30-11:45

1 stop13h 15m

San Francisco

Wed 3/6

17:55-12:15

Nonstop10h 20m

£495

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 20/5

06:30-11:45

1 stop13h 15m

San Francisco

Wed 3/6

23:15-17:30

Nonstop10h 15m

£495

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 29/1

09:00-16:30

1 stop15h 30m

San Francisco

Mon 9/3

18:25-12:00

Nonstop10h 35m

£496

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 10/3

17:25-17:30

2 stops31h 05m

San Francisco

Mon 16/3

20:25-17:50

1 stop14h 25m

£497

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 60 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 19 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 15 hours 2 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 (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 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 22 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.

Crew

8.4

Food

7.2

Boarding

7.8

Overall

7.7

Entertainment

7.1

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

Crew

8.4

Food

7.2

Boarding

7.8

Overall

7.7

Entertainment

7.1

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

Crew

8.4

Food

7.2

Boarding

7.8

Overall

7.7

Entertainment

7.1

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

Crew

8.4

Food

7.2

Boarding

7.8

Overall

7.7

Entertainment

7.1

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

Crew

8.4

Food

7.2

Boarding

7.8

Overall

7.7

Entertainment

7.1

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

Crew

8.4

Food

7.2

Boarding

7.8

Overall

7.7

Entertainment

7.1

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 29 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 £44, while return flights cost around £50.

  • How much is a return flight to San Francisco?

    A return flight to San Francisco will typically cost around £159, however they can be found for as little as £50.

  • 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 55 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
South San Francisco
Bodega Bay
Sunnyvale
Pacific Grove

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