How long is the flight from Southampton to San Francisco?

Delta and British Airways can get you from Southampton to San Francisco in just under 14h 15m. Your travel time can differ by up to 6h 02m. Southampton and San Francisco are separated by a distance of 5349 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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).

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

When flying from Southampton 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.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Southampton 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.

£438+ Cheap Flights from Southampton to San Francisco

Cheap flight deals from Southampton to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Southampton to San Francisco
Explore the most affordable flight options available from Southampton to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Sun 6/1209:20 -

1 stop14h 15m

Sat 9/117:20 -

1 stop15h 15m

Deal found 31/8£485

Mon 12/1020:00 -

1 stop27h 55m

Mon 19/1017:35 -

1 stop17h 55m

Deal found 30/8£491

Wed 23/920:00 -

1 stop27h 50m

Fri 9/1017:35 -

1 stop15h 15m

Deal found 1/9£491

Sun 6/1209:20 -

1 stop14h 15m

Sun 10/117:20 -

1 stop18h 10m

Deal found 31/8£513

Mon 12/1017:20 -

1 stop26h 25m

Mon 19/1023:49 -

2 stops24h 56m

Deal found 30/8£533

Wed 23/909:15 -

2 stops39h 09m

Fri 9/1006:05 -

2 stops26h 45m

Deal found 1/9£557

Find flight deals from Southampton to San Francisco

Round-trip from	£485
One-way from	£438
Popular in	December
Cheapest in	February
Average price	£494

British Airways
6/12-9/1
2 total stops
29h 30m total
Southampton to San Francisco

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Aer Lingus
25/10
2 total stops
30h 37m total
Southampton to San Francisco

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Mon 12/10

09:05-21:22

2 stops20h 17m

San Francisco

Mon 19/10

09:59-16:50

2 stops22h 51m

£537

Fastest return journey

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Sun 6/12

09:20-15:35

1 stop14h 15m

San Francisco

Sun 10/1

17:25-19:00

2 stops17h 35m

£539

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Thu 28/1

20:00-15:35

1 stop27h 35m

San Francisco

Mon 1/2

17:25-08:25

2 stops31h 00m

£544

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Sun 6/12

20:00-15:35

1 stop27h 35m

San Francisco

Sat 9/1

17:25-19:00

2 stops17h 35m

£546

Cheapest one-way

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Sun 25/10

09:20-08:57

2 stops30h 37m

£440

Fastest single journey

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Sun 24/1

09:20-15:35

1 stop14h 15m

£452

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Sun 1/11

09:20-15:35

1 stop14h 15m

£452

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Sun 25/10

17:30-12:45

1 stop26h 15m

£453

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Thu 8/10

09:20-15:50

1 stop14h 30m

£797

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Mon 28/9

09:20-15:50

1 stop14h 30m

£799

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 12 resultsSorted by cheapest first

Best time to book a flight from Southampton to San Francisco

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

SOU-SFO

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.

Related info for your journey

How long is the flight from Southampton to San Francisco?
Delta and British Airways can get you from Southampton to San Francisco in just under 14h 15m. Your travel time can differ by up to 6h 02m. Southampton and San Francisco are separated by a distance of 5349 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Southampton to San Francisco that include hotel bookings?
Yes. In addition to deals on Southampton to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to San Francisco.
Can I find deals for business class flights from Southampton to San Francisco?
Yes. Cheapflights offers flight deals from Southampton 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.

See more FAQs

Santa Cruz

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How does Cheapflights help users find flights from Southampton to San Francisco?

Cheapflights helps you search for flights from Southampton to San Francisco via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Southampton to San Francisco.

Can Cheapflights find flights from Southampton to San Francisco with no change fees?

Need flexible booking options for your flight to San Francisco from Southampton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Southampton to San Francisco become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from Southampton today and book when prices fit your budget.

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Cheap flights from Southampton to San Francisco from £438

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 25/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to San Francisco

Cheapest flights from Southampton to San FranciscoExplore the most affordable flight options available from Southampton to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Explore the most affordable flight options available from Southampton to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Best flights from Southampton to San FranciscoDiscover carefully curated flight deals from Southampton to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2026.

Discover carefully curated flight deals from Southampton to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2026.

Last-minute flights from Southampton to San FranciscoDiscover last-minute flight deals from Southampton to San Francisco. Data last updated 2 September 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to San Francisco. Data last updated 2 September 2026 and is based on user searches.

One-way flights from Southampton to San FranciscoSearch for one-way flight options from Southampton to San Francisco. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.

Search for one-way flight options from Southampton to San Francisco. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.

Find flight deals from Southampton to San Francisco

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Popular in

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Cheapflights Fare Finder

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

Best time to book a flight from Southampton to San Francisco

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

Related info for your journey

How long is the flight from Southampton to San Francisco?

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

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

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

Travelling to a place near San Francisco?

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.

Alternative routes for Southampton to San Francisco

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Complete your trip

Complete your trip to San Francisco by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

Book a non-stop flight to one of these other cities located in California.

Search flights from Southampton to San Francisco by cabin class

Find flights from Southampton to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Southampton and San Francisco flights

Browse other Southampton and San Francisco flight options. Last updated on 2 September 2026.

Other flights from Southampton

Browse through other flights departing from Southampton. Flights are based on user searches made on Cheapflights and were last updated on 2 September 2026.

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Other flights to San Francisco

Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 2 September 2026.

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How does Cheapflights help users find flights from Southampton to San Francisco?

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

Can Cheapflights find flights from Southampton to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from Southampton to San Francisco become cheaper?

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Travel Smart

Cheapest flights from Southampton to San Francisco
Explore the most affordable flight options available from Southampton to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Best flights from Southampton to San Francisco
Discover carefully curated flight deals from Southampton to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2026.

Last-minute flights from Southampton to San Francisco
Discover last-minute flight deals from Southampton to San Francisco. Data last updated 2 September 2026 and is based on user searches.

One-way flights from Southampton to San Francisco
Search for one-way flight options from Southampton to San Francisco. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.