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$490+ 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
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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 August 20, 2025.

Round-trip from

$924
(Delta)

One-way from

$490
(Ovago)

Popular in

June

Cheapest in

October

Average price

$719
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 ($146 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 20, 2025.

This Delta deal was found by Cheapflights users on 8/20. 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 8/211:45 pmSFO - SOU
1 stop35h 00mDelta
Sat 8/306:05 pmSOU - SFO
1 stop25h 40mDelta
Deal found 8/20$923
This Delta deal was found by Cheapflights users on 8/18. 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 9/147:05 amSFO - SOU
2 stops17h 40mDelta
Mon 10/65:35 pmSOU - SFO
1 stop26h 10mDelta
Deal found 8/18$928
This Gurufare deal was found by Cheapflights users on 8/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:40 pmSFO - SOU
1 stop30h 25mAer Lingus
Mon 9/228:00 pmSOU - SFO
1 stop27h 55mAer Lingus
Deal found 8/19$933
This Delta deal was found by Cheapflights users on 8/19. 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 9/111:45 pmSFO - SOU
1 stop19h 15mDelta
Wed 9/245:35 pmSOU - SFO
2 stops24h 44mDelta
Deal found 8/19$934
This Delta deal was found by Cheapflights users on 8/18. 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 9/147:05 amSFO - SOU
2 stops17h 40mDelta
Tue 9/305:35 pmSOU - SFO
2 stops30h 29mDelta
Deal found 8/18$938
This Gurufare deal was found by Cheapflights users on 8/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:40 pmSFO - SOU
1 stop17h 50mAer Lingus
Wed 9/249:10 amSOU - SFO
1 stop14h 45mAer Lingus
Deal found 8/19$940
This Delta deal was found by Cheapflights users on 8/18. 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 9/131:00 pmSFO - SOU
2 stops35h 45mDelta
Thu 10/25:35 pmSOU - SFO
1 stop26h 10mDelta
Deal found 8/18$943
This Delta deal was found by Cheapflights users on 8/18. 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 9/131:00 pmSFO - SOU
2 stops35h 45mDelta
Sat 9/279:20 amSOU - SFO
2 stops20h 57mDelta
Deal found 8/18$947
This Ovago deal was found by Cheapflights users on 8/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:00 amSFO - SOU
2 stops19h 10mAer Lingus
Sat 9/204:25 pmSOU - SFO
1 stop31h 30mAer Lingus
Deal found 8/19$950
This Ovago deal was found by Cheapflights users on 8/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:40 pmSFO - SOU
1 stop17h 50mMultiple Airlines
Thu 10/99:40 amSOU - SFO
1 stop14h 15mMultiple Airlines
Deal found 8/18$953

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 August 20, 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

Wed 10/1

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Thu 10/16

5:35 pm-11:45 am

1 stop26h 10m

$924

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Thu 9/4

1:45 pm-8:45 am

1 stop35h 00m

Southampton Eastleigh

Sun 9/14

6:25 pm-11:45 am

1 stop25h 20m

$924

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 9/29

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Thu 10/16

5:35 pm-11:45 am

1 stop26h 10m

$924

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sat 8/23

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Fri 8/29

5:35 pm-11:45 am

1 stop26h 10m

$924

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 10/1

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Wed 10/15

5:35 pm-11:45 am

1 stop26h 10m

$924

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 10/1

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Sun 10/19

9:20 am-11:45 am

1 stop34h 25m

$924

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 9/29

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Wed 10/15

5:35 pm-11:45 am

1 stop26h 10m

$924

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 10/27

6:20 pm-3:35 pm

1 stop14h 15m

$490

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 9/14

5:40 pm-4:45 pm

1 stop15h 05m

$491

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 10/13

1:45 pm-8:45 am

1 stop35h 00m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 15 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 August 20, 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 August 20, 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
1,388 reviews

Overall

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,388 reviews
KLM
7.8
Good
1,388 reviews

Overall

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Aer Lingus
7.1
Good
1,228 reviews
KLM
7.8
Good
1,388 reviews

Overall

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 $924, 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

Browse thousands of different options on Cheapflights for your next trip

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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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$747Average$918FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$946Average$1,250FlexibilityNo cancel feeOn-timeN/A

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