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$314+ Cheap flights from San Diego (SAN) 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SOU
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from San Diego to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) 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 17, 2025.

Round-trip from

$919
(Delta)

One-way from

$314
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$725
From San Diego to Southampton Eastleigh
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One-way flight from San Diego to Southampton Eastleigh
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Highest demand for flights based on searches. 26% potential increase in price ($313 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 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 Diego to Southampton

Cheapest flights from San Diego to Southampton
Explore the most affordable flight options available from San Diego to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Delta deal was found by Cheapflights users on 9/17. 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 12/285:02 pmSAN - SOU
2 stops55h 08mDelta
Tue 1/65:30 pmSOU - SAN
2 stops35h 27mDelta
Deal found 9/17$958
This Delta deal was found by Cheapflights users on 9/17. 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 12/2710:23 pmSAN - SOU
2 stops25h 47mDelta
Tue 1/65:30 pmSOU - SAN
2 stops37h 17mDelta
Deal found 9/17$1,067
This Delta deal was found by Cheapflights users on 9/17. 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.
Fri 12/264:15 pmSAN - SOU
2 stops55h 55mDelta
Tue 1/65:30 pmSOU - SAN
2 stops30h 42mDelta
Deal found 9/17$1,132
This Delta deal was found by Cheapflights users on 9/17. 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 12/2410:30 pmSAN - SOU
2 stops34h 30mDelta
Tue 1/65:30 pmSOU - SAN
2 stops30h 42mDelta
Deal found 9/17$1,297
This KLM deal was found by Cheapflights users on 9/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:15 pmSAN - SOU
2 stops16h 35mKLM
Mon 9/225:35 pmSOU - SAN
1 stop26h 25mKLM
Deal found 9/16$1,850
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/204:40 pmSAN - SOU
2 stops31h 45mBritish Airways
Mon 9/227:55 pmSOU - SAN
2 stops30h 47mBritish Airways
Deal found 9/16$1,862
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:15 amSAN - SOU
2 stops18h 20mMultiple Airlines
Mon 9/228:55 amSOU - SAN
3 stops20h 57mMultiple Airlines
Deal found 9/16$3,567

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego 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 17, 2025.
Use the filters below to find and compare flights from San Diego to Southampton that are best for you.

Fly from

San Diego

Fly to

Southampton

Route

Depart

Return

Price

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 9/20

5:15 pm-5:50 pm

2 stops16h 35m

Southampton Eastleigh

Mon 9/22

5:35 pm-12:00 pm

1 stop26h 25m

$1,850

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 9/20

4:40 pm-8:25 am

2 stops31h 45m

Southampton Eastleigh

Mon 9/22

7:55 pm-6:42 pm

2 stops30h 47m

$1,862

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 9/20

6:15 am-8:35 am

2 stops18h 20m

Southampton Eastleigh

Mon 9/22

8:55 am-9:52 pm

3 stops20h 57m

$3,567

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Wed 10/15

2:11 pm-8:40 am

3 stops58h 29m

$314

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 12/7

10:13 pm-11:55 am

3 stops53h 42m

$623

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Best time to book a flight from San Diego to Southampton

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

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

Currently, November is the cheapest month in which you can book a flight from San Diego to Southampton (average of $787). Flying from San Diego 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 SAN to SOU?

Find hourly flight availability from San Diego 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 17, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 22% on flights from San Diego to Southampton by exploring options for tickets at noon.

Related info for your journey

Find useful and relevant information for your journey from San Diego 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 Diego to Southampton?

    Departing from San Diego to Southampton will take you 16h 35m. There are 5462 mi between San Diego and Southampton. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from San Diego to Southampton (average of $787). Flying from San Diego 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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