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$740+ Cheap flights from Southampton (SOU) to San Francisco (SFO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — SFO
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
1 adult, Economy
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Cheap flight deals from Southampton to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to San Francisco (SFO). 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 April 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$791
(KLM)

Popular in

April

Cheapest in

June

Average price

$1,327
Provider with most accurate pricing for Southampton Eastleigh-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Southampton Eastleigh-San Francisco flights.
Search Deals
From Southampton Eastleigh to San Francisco
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Southampton to San Francisco

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 April 16, 2025.

This Delta deal was found by Cheapflights users on 4/15. 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 9/105:35 pmSOU - SFO
1 stop26h 10mDelta
Tue 9/237:00 amSFO - SOU
2 stops17h 45mDelta
Deal found 4/15$740
This KLM deal was found by Cheapflights users on 4/15. 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.
Fri 5/309:20 amSOU - SFO
1 stop34h 25mKLM
Thu 6/57:10 amSFO - SOU
2 stops17h 35mKLM
Deal found 4/15$791
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/307:25 pmSOU - SFO
1 stop26h 25mMultiple Airlines
Thu 6/54:05 pmSFO - SOU
1 stop18h 50mMultiple Airlines
Deal found 4/15$814
This TravelUp deal was found by Cheapflights users on 4/16. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/249:40 amSOU - SFO
1 stop14h 15mAer Lingus
Sun 5/257:30 pmSFO - SOU
2 stops28h 45mAer Lingus
Deal found 4/16$918

Cheapflights Fare Finder

Customize your flight search to find flights from Southampton to San Francisco 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 April 16, 2025.
Use the filters below to find and compare flights from Southampton to San Francisco that are best for you.

Fly from

Southampton

Fly to

San Francisco

Route

Depart

Return

Price

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 5/30

9:20 am-11:45 am

1 stop34h 25m

San Francisco

Thu 6/5

7:10 am-8:45 am

2 stops17h 35m

$791

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 5/30

7:25 pm-1:50 pm

1 stop26h 25m

San Francisco

Thu 6/5

4:05 pm-6:55 pm

1 stop18h 50m

$814

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sat 5/17

6:05 pm-11:45 am

1 stop25h 40m

San Francisco

Sun 6/8

7:00 am-8:45 am

2 stops17h 45m

$831

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sat 5/24

9:40 am-3:55 pm

1 stop14h 15m

San Francisco

Sun 5/25

7:30 pm-8:15 am

2 stops28h 45m

$918

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 5/14

9:20 am-11:40 am

2 stops34h 20m

$1,480

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Compare providers for flights from Southampton to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Southampton to San Francisco in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Southampton-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Southampton-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Southampton-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Southampton-San Francisco flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Southampton-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.
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 Southampton to San Francisco

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

Currently, January is the cheapest month in which you can book a flight from Southampton to San Francisco (average of $276). Flying from Southampton to San Francisco in June is currently the most expensive (average of $393). 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.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated April 16, 2025.
Delta
8.0
Very good
7,916 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,326 reviews
Delta
8.0
Very good
7,916 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Aer Lingus
7.0
Good
1,063 reviews
Delta
8.0
Very good
7,916 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

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

    Currently priced at $791, KLM will fly you from Southampton to San Francisco and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Aer Lingus - these airlines can fly you to your destination from $831 and $918, respectively. KLM is currently priced 9% below the average price you’ll pay for this route.

  • 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 vacation 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.

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

    Currently, January is the cheapest month in which you can book a flight from Southampton to San Francisco (average of $276). Flying from Southampton to San Francisco in June is currently the most expensive (average of $393). 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

Traveling to a place near Southampton?

Book flights to Southampton if you plan to visit one of these locations
Roseville
Mountain View
Santa Cruz
Turlock
South San Francisco
Fairfield
Manteca
Sausalito
Richmond
Watsonville
Hollister
Milpitas
Antioch
Vallejo
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Hayward
Alameda
Sunnyvale
Livermore
Campbell

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