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Cheap flights from San Diego to Southampton from £488

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SOU
9 Mar — 16 Mar1
1 adult

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 4 March 2025.

Round-trip from

£633

One-way from

£488

Popular in

June

Cheapest in

February

Average price

£592
Delta
  • Delta
  • 6/4-24/4
  • 4 total stops
  • 56h 25m total
  • San Diego to Southampton
Search Deals
Delta
  • Delta
  • 10/8
  • 1 total stop
  • 19h 05m total
  • San Diego to Southampton
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£159 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 4 March 2025.

Sun 6/413:25SAN - SOU
2 stops35h 25mDelta
Thu 24/409:20SOU - SAN
2 stops21h 00mDelta
Deal found 3/3£633
Sun 6/713:55SAN - SOU
1 stop19h 05mKLM
Mon 21/717:35SOU - SAN
1 stop26h 25mKLM
Deal found 3/3£962
Sun 6/722:45SAN - SOU
2 stops36h 45mAer Lingus
Mon 21/720:00SOU - SAN
2 stops35h 22mAer Lingus
Deal found 3/3£1,184

Find flights from San Diego to Southampton within your budget

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 4 March 2025.

Fly from

San Diego

Fly to

Southampton

Route

Depart

Return

Price

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 6/4

13:25-08:50

2 stops35h 25m

Southampton Eastleigh

Thu 24/4

09:20-22:20

2 stops21h 00m

£633

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 6/7

13:55-17:00

1 stop19h 05m

Southampton Eastleigh

Mon 21/7

17:35-12:00

1 stop26h 25m

£962

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 6/7

22:45-19:30

2 stops36h 45m

Southampton Eastleigh

Mon 21/7

20:00-23:22

2 stops35h 22m

£1,184

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 10/8

13:55-17:00

1 stop19h 05m

£488

Flights are sorted by cheapest return flights first.

Deals found on 3/3

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.

Travel insights for flights from San Diego to Southampton

Get recent, data-driven insights about flights from San Diego to Southampton including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from San Diego to Southampton (average of £203). Flying from San Diego to Southampton in November is currently the most expensive (average of £262). 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 Southampton by month

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

In terms of precipitation, rainfall in Southampton ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Southampton when rainfall is around 25.0 mm.

Temperature in Southampton by month

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

If weather is an important factor for your trip to Southampton, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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 4 March 2025.
Delta
8.0
Very Good
8,068 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,068 reviews
Delta
8.0
Very Good
8,068 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,322 reviews
Delta
8.0
Very Good
8,068 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aer Lingus
7.0
Good
1,063 reviews
Delta
8.0
Very Good
8,068 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    Currently priced at £633, Delta will fly you from San Diego to Southampton and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from KLM and Aer Lingus - these airlines can fly you to your destination from £962 and £1,184, respectively.

  • 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.

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

    Currently, September is the cheapest month in which you can book a flight from San Diego to Southampton (average of £203). Flying from San Diego to Southampton in November is currently the most expensive (average of £262). 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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How does Cheapflights help users find flights from San Diego to Southampton?

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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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