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$848+ Cheap flights from San Diego (SAN) to Southampton (SOU)

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SOU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$848
(Delta)

Popular in

June

Cheapest in

February

Average price

$1,378
From San Diego to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($298 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 10/51:55 pmSAN - SOU
1 stop34h 50mDelta
Mon 10/135:35 pmSOU - SAN
1 stop26h 25mDelta
Deal found 6/10$848
This KLM deal was found by Cheapflights users on 6/12. 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.
Sun 7/61:55 pmSAN - SOU
1 stop34h 55mKLM
Mon 7/216:25 pmSOU - SAN
1 stop25h 35mKLM
Deal found 6/12$1,294

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 June 12, 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

Sun 10/5

1:55 pm-8:45 am

1 stop34h 50m

Southampton Eastleigh

Mon 10/13

5:35 pm-12:00 pm

1 stop26h 25m

$848

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 7/6

1:55 pm-8:50 am

1 stop34h 55m

Southampton Eastleigh

Mon 7/21

6:25 pm-12:00 pm

1 stop25h 35m

$1,294

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 12, 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.

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 1.0 - 3.0 inches per month. December is typically the wettest month, when rainfall can reach 3.0 in. July is typically the driest time to visit Southampton when rainfall is around 1.0 in.

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 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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?

    According to our current data, Delta ($848), and KLM ($1,294) offers the cheapest pricing from San Diego to Southampton.

  • 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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