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$454+ Cheap flights from San Francisco (SFO) to Southampton (SOU)

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SOU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from San Francisco to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Southampton (SOU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$735
(Delta)

One-way from

$454
(Ovago)

Popular in

June

Cheapest in

October

Average price

$660
From San Francisco to Southampton Eastleigh
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One-way flight from San Francisco to Southampton Eastleigh
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Highest demand for flights based on searches. 16% potential increase in price ($148 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 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 San Francisco to Southampton

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

This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/291:45 pmSFO - SOU
1 stop19h 15mDelta
Mon 10/65:35 pmSOU - SFO
1 stop26h 10mDelta
Deal found 9/9$735
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:45 pmSFO - SOU
1 stop19h 15mDelta
Mon 10/65:35 pmSOU - SFO
1 stop26h 10mDelta
Deal found 9/11$736
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/211:45 pmSFO - SOU
1 stop35h 00mDelta
Tue 9/309:20 amSOU - SFO
2 stops18h 28mDelta
Deal found 9/9$745
This KLM deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:45 pmSFO - SOU
1 stop35h 00mKLM
Wed 10/19:20 amSOU - SFO
2 stops18h 58mKLM
Deal found 9/11$746
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/278:58 pmSFO - SOU
2 stops36h 02mDelta
Mon 10/69:20 amSOU - SFO
1 stop34h 25mDelta
Deal found 9/11$752
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2812:40 pmSFO - SOU
2 stops20h 20mDelta
Tue 10/75:35 pmSOU - SFO
1 stop26h 10mDelta
Deal found 9/9$778
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/271:45 pmSFO - SOU
1 stop35h 00mDelta
Tue 10/75:35 pmSOU - SFO
1 stop26h 10mDelta
Deal found 9/9$785
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:45 pmSFO - SOU
1 stop35h 00mDelta
Mon 10/65:35 pmSOU - SFO
1 stop26h 10mDelta
Deal found 9/11$786
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:50 amSFO - SOU
2 stops27h 10mDelta
Tue 9/309:20 amSOU - SFO
2 stops18h 28mDelta
Deal found 9/9$788
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/289:00 pmSFO - SOU
2 stops27h 45mDelta
Sun 10/56:25 pmSOU - SFO
1 stop25h 20mDelta
Deal found 9/10$790

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Southampton 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from San Francisco to Southampton that are best for you.

Fly from

San Francisco

Fly to

Southampton

Route

Depart

Return

Price

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Tue 9/30

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Mon 10/6

5:35 pm-11:45 am

1 stop26h 10m

$735

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 9/29

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Wed 10/8

5:35 pm-11:45 am

1 stop26h 10m

$735

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 9/29

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Mon 10/6

5:35 pm-11:45 am

1 stop26h 10m

$735

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 9/24

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Thu 10/2

5:35 pm-11:45 am

1 stop26h 10m

$736

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 9/22

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Tue 9/30

9:20 am-7:48 pm

2 stops18h 28m

$745

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 9/24

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Wed 10/1

9:20 am-8:05 pm

2 stops18h 45m

$746

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Thu 9/25

1:45 pm-8:45 am

1 stop35h 00m

Southampton Eastleigh

Mon 10/6

5:35 pm-11:45 am

1 stop26h 10m

$785

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sat 9/27

1:45 pm-8:45 am

1 stop35h 00m

Southampton Eastleigh

Tue 10/7

5:35 pm-11:45 am

1 stop26h 10m

$785

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 10/27

6:20 pm-3:35 pm

1 stop14h 15m

$454

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 9/21

1:45 pm-8:45 am

1 stop35h 00m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 13 results
1
2

Best time to book a flight from San Francisco to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from San Francisco 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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Southampton

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

Currently, November is the cheapest month in which you can book a flight from San Francisco to Southampton (average of $787). Flying from San Francisco to Southampton in June is currently the most expensive (average of $1,308). 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.

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

Find hourly flight availability from San Francisco to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from San Francisco to Southampton at noon. Doing so could potentially save you 19% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southampton. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from San Francisco to Southampton, such as KLM and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,385 reviews

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,385 reviews
KLM
7.8
Good
1,385 reviews

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Aer Lingus
7.2
Good
1,271 reviews
KLM
7.8
Good
1,385 reviews

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

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

  • How long is the flight from San Francisco to Southampton?

    For as low as $735, Delta can have you in Southampton from San Francisco in 19h 15m. Airlines will cover a distance of 5349 mi.

  • What are the cheapest airlines flying from San Francisco to Southampton round-trip?

    According to our current data, KLM ($747), and Aer Lingus ($946) offers the cheapest pricing from San Francisco to Southampton.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Southampton 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 San Francisco to Southampton?

    Currently, November is the cheapest month in which you can book a flight from San Francisco to Southampton (average of $787). Flying from San Francisco to Southampton in June is currently the most expensive (average of $1,308). 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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Top 2 airlines flying from San Francisco to Southampton

Discover the top 2 airlines that operate flights from San Francisco to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$747Average$918FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$946Average$1,411FlexibilityNo cancel feeOn-timeN/A

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