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 23h 18m. Your travel time can differ by up to 28h 32m. 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.

£378+ 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 10 November 2026.

Thu 24/1217:35 -

1 stop26h 10m

Thu 31/1208:00 -

2 stops25h 05m

Deal found 8/11£685

Thu 3/1208:40 -

1 stop35h 05m

Fri 11/1223:39 -

2 stops25h 16m

Deal found 8/11£715

Mon 30/1117:45 -

2 stops38h 27m

Wed 16/1212:08 -

2 stops20h 57m

Deal found 8/11£719

Tue 15/1208:40 -

2 stops19h 58m

Tue 22/1222:00 -

2 stops26h 10m

Deal found 7/11£721

Thu 3/1208:40 -

1 stop35h 05m

Thu 10/1213:50 -

1 stop35h 05m

Deal found 8/11£756

Mon 30/1117:45 -

2 stops36h 49m

Mon 14/1213:50 -

1 stop19h 15m

Deal found 8/11£760

Thu 10/1212:25 -

1 stop35h 10m

Thu 17/1207:50 -

2 stops17h 00m

Deal found 9/11£789

Tue 1/1209:20 -

1 stop14h 15m

Mon 14/1217:20 -

1 stop18h 10m

Deal found 8/11£792

Tue 15/1217:35 -

1 stop26h 10m

Thu 24/1222:55 -

2 stops33h 55m

Deal found 7/11£804

Mon 30/1120:00 -

1 stop27h 35m

Sun 13/1217:20 -

1 stop31h 30m

Deal found 8/11£813

Find flight deals from Southampton to San Francisco

Round-trip from	£685
One-way from	£378
Popular in	July
Cheapest in	February
Average price	£507

KLM
24/12-31/12
2 total stops
70h 10m total
Southampton to San Francisco

Search Deals

11/1-31/12
3 total stops
55h 15m total
Southampton to San Francisco

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£51 potential increase over avg. return price).

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 November 2026

Search Deals

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

Fastest return journey

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Wed 28/4

09:20-15:50

1 stop14h 30m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£508

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Mon 26/4

09:20-15:50

1 stop14h 30m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£508

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Sun 25/4

09:20-15:50

1 stop14h 30m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£508

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Thu 29/4

09:20-15:50

1 stop14h 30m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£508

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Fri 23/4

09:20-15:50

1 stop14h 30m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£508

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Tue 27/4

09:20-15:50

1 stop14h 30m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£510

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Fri 30/4

09:20-15:50

1 stop14h 30m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£526

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Thu 24/12

08:40-23:58

2 stops23h 18m

San Francisco

Thu 31/12

10:02-17:05

2 stops23h 03m

£689

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Thu 3/12

08:40-11:45

1 stop35h 05m

San Francisco

Fri 11/12

23:39-08:55

2 stops25h 16m

£715

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Mon 30/11

17:45-00:12

2 stops38h 27m

San Francisco

Fri 11/12

22:40-08:55

2 stops26h 15m

£719

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 17 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 23h 18m. Your travel time can differ by up to 28h 32m. 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.

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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 £378

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/1. 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 10 November 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 10 November 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 10 November 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 10 November 2026.

Last-minute flights from Southampton to San FranciscoDiscover last-minute flight deals from Southampton to San Francisco. Data last updated 10 November 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to San Francisco. Data last updated 10 November 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 10 November 2026.

Search for one-way flight options from Southampton to San Francisco. Find affordable one-way fares based on user searches. Data last updated 10 November 2026.

Find flight deals from Southampton to San Francisco

Round-trip from

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Popular in

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Average price

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

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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 10 November 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 10 November 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 10 November 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 10 November 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 10 November 2026.

Last-minute flights from Southampton to San Francisco
Discover last-minute flight deals from Southampton to San Francisco. Data last updated 10 November 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 10 November 2026.