When is the best time to book a flight to San Francisco?

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.

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.

What is the cheapest month to fly to San Francisco?

At the present moment the cheapest month to fly to San Francisco is currently February ; with July being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

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 £16, while return flights cost around £28.

How much is a return flight to San Francisco?

A return flight to San Francisco will typically cost around £212, however they can be found for as little as £38.

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).

Which airport is closest to Mission San Francisco de Asís?

f being close to Mission San Francisco de Asís is important to you, you’ll want to land at San Francisco Airport.

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).

When is the cheapest time to fly to San Francisco?

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.

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.

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.

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.

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.

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).

Cheap Flights to San Francisco from £347

Flights to San Francisco in 2025

Return from	£393
One-way from	£347
Popular in	July
Cheapest in	February
Average price	£435
Good round-trip deal	£463 or less
Good one-way deal	£494 or less

Lufthansa
25/9-1/10
1 total stop
25h 50m total
London to San Francisco

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26/9
3 total stops
39h 21m total
London to San Francisco

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Highest demand for flights based on searches. 15% potential increase in price (£65 potential increase over avg. return price).

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Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).

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Average for return flights in September 2025

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Price to beat on a round-trip flight from London to San Francisco.

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Price to beat on a one-way flight from London to San Francisco.

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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 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

Fri 19/909:30LHR - SFO

1 stop18h 21mUnited Airlines

Thu 2/1011:19SFO - LHR

1 stop14h 21mUnited Airlines

Deal found 12/9£397

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

Best flights to San Francisco
Discover carefully curated flight deals to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2025.

Thu 25/910:35LHR - SFO

Nonstop11h 05mAustrian Airlines

Thu 9/1019:50SFO - LHR

Nonstop10h 20mAustrian Airlines

Deal found 12/9£394

Wed 5/1111:40LHR - SFO

Nonstop11h 00mDelta

Wed 12/1116:30SFO - LHR

Nonstop10h 10mDelta

Deal found 12/9£394

Fri 26/910:35LHR - SFO

Nonstop11h 05mUnited Airlines

Mon 6/1013:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 13/9£394

Wed 14/113:45LHR - SFO

Nonstop11h 15mLufthansa

Wed 21/117:25SFO - LHR

Nonstop10h 35mLufthansa

Deal found 12/9£394

Sat 1/1113:45LHR - SFO

Nonstop11h 15mMultiple Airlines

Sat 15/1112:50SFO - LHR

Nonstop10h 35mMultiple Airlines

Deal found 12/9£394

Wed 5/1109:25LCY - SFO

1 stop15h 05mSWISS

Mon 10/1119:25SFO - LCY

1 stop15h 15mSWISS

Deal found 11/9£419

Tue 28/1017:50LCY - SFO

1 stop26h 00mVirgin Atlantic

Tue 4/1105:55SFO - LCY

2 stops18h 55mVirgin Atlantic

Deal found 12/9£432

Fri 12/1216:40LGW - SFO

1 stop30h 05mTAP AIR PORTUGAL

Sat 27/1216:35SFO - LGW

2 stops20h 05mTAP AIR PORTUGAL

Deal found 11/9£459

Fri 14/1111:40LGW - SFO

1 stop33h 00mAir Transat

Wed 19/1113:40SFO - LGW

1 stop36h 05mAir Transat

Deal found 13/9£525

Sat 27/910:35LHR - SFO

Nonstop11h 05mAustrian Airlines

Sat 4/1008:25SFO - LHR

1 stop13h 55mAustrian Airlines

Deal found 12/9£394

Thu 25/916:15LHR - SFO

Nonstop11h 00mUnited Airlines

Sun 5/1013:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 13/9£394

Sat 1/1106:30LHR - SFO

1 stop13h 20mDelta

Tue 25/1100:45SFO - LHR

1 stop22h 20mDelta

Deal found 12/9£398

Direct flights to San Francisco
Explore direct flight options to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 13 September 2025.

Fri 26/912:20LHR - SFO

Nonstop11h 05mAustrian Airlines

Tue 7/1019:50SFO - LHR

Nonstop10h 20mAustrian Airlines

Deal found 12/9£394

Wed 12/1110:05LHR - SFO

Nonstop11h 15mUnited Airlines

Mon 24/1112:50SFO - LHR

Nonstop10h 35mUnited Airlines

Deal found 13/9£395

Sat 21/210:05LHR - SFO

Nonstop11h 15mUnited Airlines

Sun 1/317:25SFO - LHR

Nonstop10h 35mUnited Airlines

Deal found 13/9£395

Thu 5/211:45LHR - SFO

Nonstop11h 15mBritish Airways

Sat 28/217:30SFO - LHR

Nonstop10h 30mBritish Airways

Deal found 11/9£397

Thu 5/211:45LHR - SFO

Nonstop11h 15mBritish Airways

Sat 28/217:30SFO - LHR

Nonstop10h 30mBritish Airways

Deal found 12/9£398

Wed 24/910:45LHR - SFO

Nonstop11h 05mBritish Airways

Sun 30/1120:40SFO - LHR

Nonstop10h 30mBritish Airways

Deal found 11/9£400

Thu 23/1016:25LHR - SFO

Nonstop11h 05mVirgin Atlantic

Mon 3/1116:30SFO - LHR

Nonstop10h 10mVirgin Atlantic

Deal found 12/9£403

Tue 14/1016:25LHR - SFO

Nonstop11h 05mVirgin Atlantic

Tue 21/1021:20SFO - LHR

Nonstop10h 20mVirgin Atlantic

Deal found 11/9£403

Sat 27/910:35LHR - SFO

Nonstop11h 05mBrussels Airlines

Wed 8/1019:50SFO - LHR

Nonstop10h 20mBrussels Airlines

Deal found 12/9£404

Wed 24/910:45LHR - SFO

Nonstop11h 05mAmerican Airlines

Sun 30/1120:40SFO - LHR

Nonstop10h 30mAmerican Airlines

Deal found 11/9£405

Wed 15/1016:25LHR - SFO

Nonstop11h 05mVirgin Atlantic

Tue 4/1116:30SFO - LHR

Nonstop10h 10mVirgin Atlantic

Deal found 12/9£406

Tue 14/1016:25LHR - SFO

Nonstop11h 05mVirgin Atlantic

Mon 3/1116:30SFO - LHR

Nonstop10h 10mVirgin Atlantic

Deal found 11/9£409

Last-minute flights to San Francisco
Discover last-minute flight deals to San Francisco. Data last updated 13 September 2025 and is based on user searches.

Fri 19/906:00LHR - SFO

1 stop18h 35mSWISS

Tue 23/919:30SFO - LHR

1 stop14h 20mSWISS

Deal found 13/9£393

Fri 19/909:30LHR - SFO

1 stop18h 21mUnited Airlines

Thu 2/1011:19SFO - LHR

1 stop17h 01mUnited Airlines

Deal found 12/9£395

Fri 19/915:05LGW - SFO

1 stop16h 54mAmerican Airlines

Thu 2/1010:22SFO - LGW

1 stop13h 48mAmerican Airlines

Deal found 11/9£396

Fri 19/909:30LHR - SFO

1 stop18h 21mUnited Airlines

Thu 2/1011:19SFO - LHR

1 stop14h 21mUnited Airlines

Deal found 12/9£397

Sat 20/910:35LHR - SFO

Nonstop11h 05mUnited Airlines

Fri 3/1016:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 13/9£395

Wed 24/906:30LHR - SFO

1 stop13h 15mDelta

Thu 9/1021:20SFO - LHR

Nonstop10h 20mDelta

Deal found 12/9£398

Fri 26/916:15LHR - SFO

Nonstop11h 05mUnited Airlines

Sat 11/1013:05SFO - LHR

Nonstop10h 20mUnited Airlines

Deal found 11/9£394

Wed 1/1015:05LGW - SFO

1 stop16h 54mAmerican Airlines

Tue 7/1010:12SFO - LGW

1 stop13h 58mAmerican Airlines

Deal found 13/9£395

Thu 30/1018:40LGW - SFO

1 stop29h 50mSWISS

Mon 10/1119:25SFO - 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

Thu 30/1018:40LGW - SFO

1 stop29h 50mSWISS

Mon 3/1119:25SFO - LGW

1 stop14h 25mSWISS

Deal found 12/9£398

Thu 30/1009:15LCY - SFO

1 stop15h 15mSWISS

Tue 4/1119:25SFO - LCY

1 stop13h 40mSWISS

Deal found 12/9£398

One-way flights to San Francisco
Search for one-way flight options to San Francisco. Find affordable one-way fares based on user searches. Data last updated 13 September 2025.

Fri 26/914:00LGW - SFO

3 stops39h 21mMultiple Airlines

Deal found 11/9£347

Thu 25/919:35LHR - SFO

1 stop28h 15mAer Lingus

Deal found 11/9£347

Sat 27/914:00LGW - SFO

2 stops26h 15mMultiple Airlines

Deal found 11/9£347

Thu 6/1108:25LHR - SFO

2 stops33h 45mBritish Airways

Deal found 11/9£348

Tue 7/1018:10LTN - SFO

2 stops28h 25mMultiple Airlines

Deal found 12/9£349

Sun 21/922:00LHR - SFO

1 stop25h 55mAer Lingus

Deal found 12/9£349

Fri 3/1010:55LGW - SFO

1 stop30h 55mMultiple Airlines

Deal found 11/9£349

Mon 29/914:15STN - SFO

2 stops31h 20mMultiple Airlines

Deal found 11/9£349

Wed 24/920:50LHR - SFO

2 stops25h 40mMultiple Airlines

Deal found 11/9£350

Mon 22/916:35STN - SFO

2 stops29h 00mMultiple Airlines

Deal found 11/9£350

Tue 18/1120:05LTN - SFO

2 stops26h 25mMultiple Airlines

Deal found 12/9£350

Tue 30/920:50LHR - SFO

2 stops25h 45mMultiple Airlines

Deal found 12/9£350

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Cheap flights to San Francisco – Compare and Save

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.

Return from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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.

100% Free

Book with Flexibility

Travel Smart

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 13 September 2025.