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Cheap flights from Southampton to Fremont from £439

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — SFO
26 Apr — 3 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Fremont

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Fremont
Explore the most affordable flight options available from Southampton to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 March 2026.

Sun 10/509:20
SOU
-
SFO
1 stop14h 35m
Aer Lingus
Sun 17/517:40
SFO
-
SOU
1 stop15h 10m
Aer Lingus
Deal found 25/3£658
Thu 7/509:20
SOU
-
SFO
1 stop14h 30m
British Airways
Mon 11/517:35
SFO
-
SOU
1 stop17h 55m
British Airways
Deal found 26/3£672
Thu 7/509:05
SOU
-
SFO
1 stop34h 40m
KLM
Thu 14/513:45
SFO
-
SOU
1 stop35h 00m
KLM
Deal found 23/3£673
Sun 10/517:20
SOU
-
SFO
1 stop30h 30m
Multiple Airlines
Sun 17/517:40
SFO
-
SOU
1 stop15h 10m
Multiple Airlines
Deal found 26/3£677
Fri 24/420:00
SOU
-
SFO
1 stop27h 55m
British Airways
Mon 27/417:35
SFO
-
SOU
1 stop17h 55m
British Airways
Deal found 25/3£684

Find flight deals from Southampton to Fremont

Keep the following information in mind while searching for Southampton to Fremont flight deals. Data was last updated 27 March 2026.

Round-trip from

£635

One-way from

£439

Popular in

December

Cheapest in

February

Average price

£485
Aer Lingus
  • Aer Lingus
  • 5/5-12/5
  • 2 total stops
  • 45h 35m total
  • Southampton to Fremont
Search Deals
British Airways
  • British Airways
  • 23/9
  • 1 total stop
  • 14h 35m total
  • Southampton to Fremont
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Fremont that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 March 2026.
Use the filters below to find and compare flights from Southampton to Fremont that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Thu 7/5

09:20-15:50

1 stop14h 30m

San Francisco

Mon 11/5

17:35-19:30

1 stop17h 55m

£672

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 24/4

20:00-15:55

1 stop27h 55m

San Francisco

Mon 27/4

17:35-19:30

1 stop17h 55m

£684
Fastest return journey

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 2/9

09:20-15:55

1 stop14h 35m

San Francisco

Sat 12/9

17:40-16:50

1 stop15h 10m

£700
Cheapest one-way

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sun 21/6

17:20-15:50

1 stop30h 30m

£503

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sun 21/6

20:45-13:50

2 stops49h 05m

£545
Fastest single journey

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 8/5

09:20-15:50

1 stop14h 30m

£726

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 24/4

09:20-15:50

1 stop14h 30m

£728

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Thu 23/4

09:20-15:50

1 stop14h 30m

£729

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 3/7

09:20-15:50

1 stop14h 30m

£825

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sun 16/8

20:45-13:50

2 stops25h 05m

£850

Flights are sorted by cheapest return flights first.

Deals found on 23/3

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Southampton to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from Southampton 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 from Southampton to Fremont

What is the cheapest month to book a flight from Southampton to Fremont?

Currently, February is the cheapest month in which you can book a flight from Southampton to Fremont (average of £356). Flying from Southampton to Fremont in July is currently the most expensive (average of £438). 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.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Fremont. 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 from for flights from Southampton to Fremont?

    If you book a flight to Fremont from Southampton, you will be flying from Eastleigh, which is the city’s only airport. Southampton Eastleigh (SOU) is located 3.5 mi from the center of Southampton. There are 0 flights from Eastleigh to Fremont per day from 0 different airlines.

  • How long is the flight from Southampton to Fremont?

    There are many flights that can get you from Southampton to Fremont in 14h 30m. Fly via British Airways to get the fastest option. Airlines will cover a distance of 5349 mi.

  • Can I find deals for flights from Southampton to Fremont that include hotel bookings?

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

  • How can I find direct flights from Southampton to Fremont?

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

  • Can I find deals for business class flights from Southampton to Fremont?

    Yes. Cheapflights offers flight deals from Southampton to Fremont 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 Southampton to Fremont?

    Currently, February is the cheapest month in which you can book a flight from Southampton to Fremont (average of £356). Flying from Southampton to Fremont in July is currently the most expensive (average of £438). 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

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Southampton to Fremont?

Cheapflights makes it easy to find Southampton to Fremont flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights helps you find that perfect flight to Fremont from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Yes! Cheapflights helps users easily find flights from Southampton to Fremont with no change fees.

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

Yes! Start tracking prices for Southampton to Fremont flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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