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Cheap flights from San Diego to Southampton from £534

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SOU
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Diego to Southampton

Enter your travel dates to find the best prices.

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 15 June 2026.

Mon 28/906:25
SAN
-
SOU
2 stops18h 10m
KLM
Tue 13/1009:05
SOU
-
SAN
2 stops17h 50m
KLM
Deal found 10/6£780
Mon 27/707:30
SAN
-
SOU
2 stops25h 20m
Aer Lingus
Mon 3/820:00
SOU
-
SAN
2 stops33h 22m
Aer Lingus
Deal found 12/6£1,002
Thu 9/713:40
SAN
-
SOU
1 stop35h 05m
KLM
Thu 23/709:15
SOU
-
SAN
2 stops20h 46m
KLM
Deal found 11/6£1,007
Mon 27/714:18
SAN
-
SOU
2 stops19h 17m
Delta
Mon 3/818:05
SOU
-
SAN
1 stop25h 45m
Delta
Deal found 12/6£1,008
Mon 28/917:00
SAN
-
SOU
3 stops19h 45m
Multiple Airlines
Tue 13/1009:15
SOU
-
SAN
2 stops17h 46m
Multiple Airlines
Deal found 11/6£1,011
Tue 14/713:40
SAN
-
SOU
1 stop35h 05m
KLM
Sun 26/709:15
SOU
-
SAN
2 stops19h 21m
KLM
Deal found 10/6£1,014
Wed 8/715:50
SAN
-
SOU
2 stops17h 45m
KLM
Sat 25/709:15
SOU
-
SAN
2 stops22h 28m
KLM
Deal found 14/6£1,051
Wed 8/710:22
SAN
-
SOU
2 stops25h 08m
Aer Lingus
Fri 24/709:20
SOU
-
SAN
2 stops31h 48m
Aer Lingus
Deal found 14/6£1,096
Mon 27/707:30
SAN
-
SOU
2 stops17h 10m
Multiple Airlines
Mon 3/814:25
SOU
-
SAN
3 stops36h 07m
Multiple Airlines
Deal found 12/6£1,123

Find 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 15 June 2026.

Round-trip from

£780

One-way from

£534

Popular in

June

Cheapest in

February

Average price

£1,031
KLM
  • KLM
  • 28/9-13/10
  • 4 total stops
  • 36h 00m total
  • San Diego to Southampton
Search Deals
Delta
  • Delta
  • 4/7
  • 2 total stops
  • 26h 30m total
  • San Diego to Southampton
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£182 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 15 June 2026.
Use the filters below to find and compare flights from San Diego to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Mon 28/9

06:25-08:35

2 stops18h 10m

Southampton Eastleigh

Tue 13/10

09:05-18:55

2 stops17h 50m

£780

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Thu 9/7

13:40-08:45

1 stop35h 05m

Southampton Eastleigh

Thu 23/7

09:15-22:01

2 stops20h 46m

£1,007

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Mon 27/7

14:18-17:35

2 stops19h 17m

Southampton Eastleigh

Mon 3/8

18:05-11:50

1 stop25h 45m

£1,008

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Mon 28/9

14:24-20:45

3 stops22h 21m

Southampton Eastleigh

Tue 13/10

09:15-19:01

2 stops17h 46m

£1,011

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Tue 14/7

13:40-08:45

1 stop35h 05m

Southampton Eastleigh

Sun 26/7

09:15-20:36

2 stops19h 21m

£1,014

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Wed 8/7

15:50-17:35

2 stops17h 45m

Southampton Eastleigh

Sat 25/7

09:15-23:43

2 stops22h 28m

£1,051
Cheapest one-way

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Tue 7/7

06:20-08:45

2 stops42h 25m

£534
Fastest single journey

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Mon 6/7

14:31-17:35

2 stops19h 04m

£534

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Tue 30/6

13:40-16:50

1 stop19h 10m

£626

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Mon 29/6

06:20-16:50

2 stops26h 30m

£629

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 15 resultsSorted by cheapest first
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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 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.

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?

    KLM can get you from San Diego to Southampton in just under 18h 10m. Your travel time can differ by up to . San Diego and Southampton are separated by a distance of 5462 mi.

  • 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 holiday 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.

See more FAQs

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How does Cheapflights help users find flights from San Diego to Southampton?

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Diego to Southampton.

Can Cheapflights find flights from San Diego to Southampton with no change fees?

Yes, we can. To see specific flights from San Diego to Southampton with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Southampton from San Diego today and book when prices fit your budget.

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