What is the cheapest month to book a flight from London Stansted Airport to San Francisco?

Currently, January is the cheapest month in which you can book a flight from London Stansted Airport to San Francisco (average of $276). Flying from London Stansted Airport to San Francisco in June is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

How far in advance should I book a flight from London Stansted Airport to San Francisco?

Users have found that booking a flight from London Stansted Airport to San Francisco at least 46 days early can save you up to 22% on average compared to booking a flight this week. If booking 46 days before your flight isn’t an option for you, users have found flights from London Stansted Airport to San Francisco for as little as $610 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $773 for flights departing within the next 3 days.

What is the cheapest month to fly from London Stansted Airport to San Francisco?

Our data shows that February tends to be the cheapest month to fly to San Francisco from London Stansted Airport. Users have commonly found prices around $670 for the month, but tickets can be as low as $454. Due to multiple factors, prepare for potentially higher prices in July.

What is the cheapest time of day to fly from STN to SFO?

When flying from London Stansted Airport to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to San Francisco from London Stansted?

If you book a flight to San Francisco from London Stansted, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 0 flights from London Stansted to San Francisco per day from 0 different airlines.

Can I find deals for flights from Stansted to San Francisco that include hotel bookings?

Yes. In addition to deals on Stansted to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Stansted to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to San Francisco.

Can I find deals for business class flights from Stansted to San Francisco?

Yes. Cheapflights offers flight deals from Stansted to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$473+ Cheap Flights from London Stansted Airport to San Francisco

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Cheap flight deals from Stansted to San Francisco

Round-trip from	$542 (Mytrip)
One-way from	$473 (Mytrip)
Popular in	July
Cheapest in	February
Average price	$590

From London Stansted to San Francisco

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One-way flight from London Stansted to San Francisco

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Highest demand for flights based on searches. 15% potential increase in price ($121 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Stansted to San Francisco

Cheapest flights from Stansted to San Francisco
Explore the most affordable flight options available from Stansted to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

jue. 11/64:30 pmSTN - SFO

2 stops30h 05mMultiple Airlines

lun. 11/104:40 pmSFO - STN

2 stops20h 40mMultiple Airlines

Deal found 9/11

$542

lun. 10/275:00 pmSTN - SFO

3 stops30h 10mMultiple Airlines

jue. 10/309:30 pmSFO - STN

2 stops16h 50mMultiple Airlines

Deal found 9/10

$583

jue. 11/201:45 pmSTN - SFO

2 stops32h 50mMultiple Airlines

jue. 11/274:40 pmSFO - STN

3 stops22h 40mMultiple Airlines

Deal found 9/10

$586

jue. 10/166:40 amSTN - SFO

2 stops36h 15mMultiple Airlines

sáb. 10/188:10 pmSFO - STN

1 stop19h 15mMultiple Airlines

Deal found 9/10

$591

lun. 10/133:30 pmSTN - SFO

2 stops32h 40mMultiple Airlines

lun. 10/208:30 amSFO - STN

2 stops29h 10mMultiple Airlines

Deal found 9/11

$626

mar. 10/149:45 pmSTN - SFO

2 stops24h 50mMultiple Airlines

dom. 10/198:10 pmSFO - STN

1 stop17h 35mMultiple Airlines

Deal found 9/10

$631

mar. 10/282:30 pmSTN - SFO

2 stops32h 00mMultiple Airlines

lun. 11/34:35 pmSFO - STN

2 stops19h 25mMultiple Airlines

Deal found 9/10

$632

Best flights from Stansted to San Francisco
Discover carefully curated flight deals from Stansted to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 11, 2025.

jue. 10/166:40 amSTN - SFO

2 stops36h 15mMultiple Airlines

sáb. 10/188:10 pmSFO - STN

1 stop19h 15mMultiple Airlines

Deal found 9/10

$591

mar. 10/149:45 pmSTN - SFO

2 stops24h 50mMultiple Airlines

dom. 10/198:10 pmSFO - STN

1 stop17h 35mMultiple Airlines

Deal found 9/10

$631

mar. 10/282:30 pmSTN - SFO

2 stops32h 00mMultiple Airlines

lun. 11/34:35 pmSFO - STN

2 stops19h 25mMultiple Airlines

Deal found 9/10

$632

lun. 10/273:15 pmSTN - SFO

2 stops31h 55mMultiple Airlines

jue. 10/309:30 pmSFO - STN

2 stops16h 50mMultiple Airlines

Deal found 9/11

$641

lun. 11/36:30 amSTN - SFO

1 stop17h 05mMultiple Airlines

lun. 11/105:20 pmSFO - STN

1 stop20h 00mMultiple Airlines

Deal found 9/11

$657

lun. 11/176:00 amSTN - SFO

2 stops16h 35mMultiple Airlines

lun. 11/244:40 pmSFO - STN

2 stops21h 25mMultiple Airlines

Deal found 9/10

$690

dom. 9/286:00 amSTN - SFO

3 stops35h 30mMultiple Airlines

dom. 10/57:30 amSFO - STN

2 stops28h 00mMultiple Airlines

Deal found 9/10

$696

mié. 10/82:50 pmSTN - SFO

2 stops33h 20mMultiple Airlines

mié. 10/157:30 pmSFO - STN

2 stops17h 25mMultiple Airlines

Deal found 9/11

$702

mié. 10/110:10 pmSTN - SFO

2 stops24h 20mMultiple Airlines

mié. 10/812:50 pmSFO - STN

2 stops23h 10mMultiple Airlines

Deal found 9/9

$705

mar. 9/302:50 pmSTN - SFO

2 stops31h 45mMultiple Airlines

mar. 10/710:15 amSFO - STN

3 stops23h 55mMultiple Airlines

Deal found 9/10

$709

mar. 10/282:30 pmSTN - SFO

2 stops34h 00mMultiple Airlines

mar. 11/48:25 amSFO - STN

2 stops19h 05mMultiple Airlines

Deal found 9/11

$729

Last-minute flights from Stansted to San Francisco
Discover last-minute flight deals from Stansted to San Francisco. Data last updated septiembre 11, 2025 and is based on user searches.

lun. 9/227:50 pmSTN - SFO

1 stop31h 10mLufthansa

mar. 9/302:00 pmSFO - STN

1 stop21h 00mLufthansa

Deal found 9/10

$645

lun. 10/133:30 pmSTN - SFO

2 stops32h 40mMultiple Airlines

lun. 10/208:30 amSFO - STN

2 stops29h 10mMultiple Airlines

Deal found 9/11

$626

mar. 10/149:45 pmSTN - SFO

2 stops24h 50mMultiple Airlines

dom. 10/198:10 pmSFO - STN

1 stop17h 35mMultiple Airlines

Deal found 9/10

$631

jue. 10/166:40 amSTN - SFO

2 stops36h 15mMultiple Airlines

dom. 10/198:10 pmSFO - STN

1 stop17h 35mMultiple Airlines

Deal found 9/10

$591

lun. 10/275:00 pmSTN - SFO

3 stops30h 10mMultiple Airlines

jue. 10/309:30 pmSFO - STN

2 stops16h 50mMultiple Airlines

Deal found 9/10

$583

mar. 10/282:30 pmSTN - SFO

2 stops32h 00mMultiple Airlines

lun. 11/34:35 pmSFO - STN

2 stops19h 25mMultiple Airlines

Deal found 9/10

$632

One-way flights from Stansted to San Francisco
Search for one-way flight options from Stansted to San Francisco. Find affordable one-way fares based on user searches. Data last updated septiembre 11, 2025.

lun. 9/292:15 pmSTN - SFO

2 stops31h 20mMultiple Airlines

Deal found 9/11

$473

lun. 9/224:35 pmSTN - SFO

2 stops29h 00mMultiple Airlines

Deal found 9/11

$474

mié. 10/11:55 pmSTN - SFO

2 stops32h 35mMultiple Airlines

Deal found 9/11

$476

mar. 9/1610:05 pmSTN - SFO

2 stops24h 30mMultiple Airlines

Deal found 9/11

$477

dom. 11/21:55 pmSTN - SFO

2 stops32h 40mMultiple Airlines

Deal found 9/11

$480

dom. 10/511:40 amSTN - SFO

2 stops41h 44mMultiple Airlines

Deal found 9/10

$485

mar. 9/3010:35 pmSTN - SFO

3 stops45h 19mMultiple Airlines

Deal found 9/11

$490

dom. 10/1910:30 amSTN - SFO

2 stops36h 00mMultiple Airlines

Deal found 9/10

$494

vie. 10/314:20 pmSTN - SFO

2 stops30h 25mMultiple Airlines

Deal found 9/11

$496

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Stansted Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

jue. 10/16

6:40 am-10:55 am

2 stops36h 15m

San Francisco

sáb. 10/18

8:10 pm-11:25 pm

1 stop19h 15m

$591

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

mar. 10/14

9:45 pm-2:35 pm

2 stops24h 50m

San Francisco

dom. 10/19

8:10 pm-9:45 pm

1 stop17h 35m

$631

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

mar. 10/28

2:30 pm-3:30 pm

2 stops32h 00m

San Francisco

lun. 11/3

4:35 pm-8:00 pm

2 stops19h 25m

$632

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

lun. 10/27

3:15 pm-4:10 pm

2 stops31h 55m

San Francisco

jue. 10/30

9:30 pm-9:20 pm

2 stops16h 50m

$641

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

lun. 11/3

6:30 am-3:35 pm

1 stop17h 05m

San Francisco

lun. 11/10

5:20 pm-9:20 pm

1 stop20h 00m

$657

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

lun. 11/17

6:00 am-2:35 pm

2 stops16h 35m

San Francisco

lun. 11/24

4:40 pm-10:05 pm

2 stops21h 25m

$690

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

dom. 9/28

6:00 am-9:30 am

3 stops35h 30m

San Francisco

dom. 10/5

7:30 am-7:30 pm

2 stops28h 00m

$696

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

mié. 10/8

2:50 pm-4:10 pm

2 stops33h 20m

San Francisco

mié. 10/15

7:30 pm-8:55 pm

2 stops17h 25m

$702

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

mié. 10/1

10:10 pm-2:30 pm

2 stops24h 20m

San Francisco

mié. 10/8

12:50 pm-8:00 pm

2 stops23h 10m

$705

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

mar. 9/30

2:50 pm-2:35 pm

2 stops31h 45m

San Francisco

mar. 10/7

10:15 am-6:10 pm

3 stops23h 55m

$709

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 21 results

Best time to book a flight from Stansted to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Stansted with our price prediction graph.

Estimated round-trip 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.

Related info for your journey

What airport do you fly into for flights to San Francisco from London Stansted?
If you book a flight to San Francisco from London Stansted, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 0 flights from London Stansted to San Francisco per day from 0 different airlines.
Can I find deals for flights from Stansted to San Francisco that include hotel bookings?
Yes. In addition to deals on Stansted to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Stansted to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to San Francisco.
Can I find deals for business class flights from Stansted to San Francisco?
Yes. Cheapflights offers flight deals from Stansted to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Stansted Airport to San Francisco?
Currently, January is the cheapest month in which you can book a flight from London Stansted Airport to San Francisco (average of $276). Flying from London Stansted Airport to San Francisco in June is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Roseville

Santa Cruz

Livermore

South San Francisco

Turlock

Antioch

Watsonville

Manteca

Santa Clara

Sunnyvale

Hollister

Vacaville

Foster City

Vallejo

Burlingame

Redwood City

Union City

San Leandro

San Mateo

Lathrop

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$473+ Cheap flights from Stansted (STN) to San Francisco (SFO)

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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Stansted to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Stansted to San Francisco

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Stansted to San Francisco

Cheapest flights from Stansted to San FranciscoExplore the most affordable flight options available from Stansted to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

Explore the most affordable flight options available from Stansted to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Stansted Airport to San Francisco that are best for you.

Best time to book a flight from Stansted to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Stansted with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Stansted to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Francisco from London Stansted?

Can I find deals for flights from Stansted to San Francisco that include hotel bookings?

How can I find direct flights from Stansted to San Francisco?

Can I find deals for business class flights from Stansted to San Francisco?

What is the cheapest month to book a flight from London Stansted Airport to San Francisco?

Traveling to a place near San Francisco?

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Alternative routes for Stansted to San Francisco

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Cheapest flights from Stansted to San Francisco
Explore the most affordable flight options available from Stansted to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.