HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southampton

$758+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SOU
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Southampton with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from San Diego to Southampton

Best flights from San Diego to Southampton
Discover carefully curated flight deals from San Diego to Southampton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 26, 2025.

This Delta deal was found by Cheapflights users on 11/25. 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 1/237:05 amSAN - SOU
2 stops17h 40mDelta
Tue 1/275:30 pmSOU - SAN
2 stops35h 35mDelta
Deal found 11/25$758
This KLM deal was found by Cheapflights users on 11/26. 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.
Wed 4/156:20 amSAN - SOU
2 stops18h 15mKLM
Thu 4/309:05 amSOU - SAN
2 stops19h 16mKLM
Deal found 11/26$768
This Ovago deal was found by Cheapflights users on 11/25. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/99:00 pmSAN - SOU
2 stops34h 35mAer Lingus
Fri 1/168:10 pmSOU - SAN
2 stops28h 00mAer Lingus
Deal found 11/25$971
This Delta deal was found by Cheapflights users on 11/25. 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 3/810:00 amSAN - SOU
2 stops39h 10mDelta
Sat 3/145:30 pmSOU - SAN
2 stops32h 42mDelta
Deal found 11/25$870
This Delta deal was found by Cheapflights users on 11/25. 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 3/75:45 pmSAN - SOU
2 stops54h 25mDelta
Sat 3/145:30 pmSOU - SAN
2 stops31h 52mDelta
Deal found 11/25$875
This Delta deal was found by Cheapflights users on 11/25. 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 3/2810:03 pmSAN - SOU
2 stops26h 32mDelta
Sun 4/55:20 pmSOU - SAN
2 stops35h 32mDelta
Deal found 11/25$1,069
This Delta deal was found by Cheapflights users on 11/25. 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 3/2810:03 pmSAN - SOU
2 stops26h 32mDelta
Sat 4/49:15 amSOU - SAN
2 stops41h 07mDelta
Deal found 11/25$1,114
This Delta deal was found by Cheapflights users on 11/25. 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 3/810:00 amSAN - SOU
2 stops24h 00mDelta
Fri 3/138:40 amSOU - SAN
2 stops21h 09mDelta
Deal found 11/25$1,120
This Delta deal was found by Cheapflights users on 11/25. 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 3/72:00 pmSAN - SOU
1 stop19h 15mDelta
Fri 3/138:40 amSOU - SAN
2 stops21h 09mDelta
Deal found 11/25$1,165

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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$758
(Delta)

Popular in

June

Cheapest in

October

Average price

$752
Provider with most accurate pricing for San Diego-Southampton Eastleigh flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Southampton Eastleigh flights.
Search Deals
From San Diego to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($316 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 26, 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

Fri 1/23

7:05 am-8:45 am

2 stops17h 40m

Southampton Eastleigh

Tue 1/27

5:30 pm-9:05 pm

2 stops35h 35m

$758

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Wed 4/15

6:20 am-8:35 am

2 stops18h 15m

Southampton Eastleigh

Thu 4/30

9:05 am-8:21 pm

2 stops19h 16m

$768

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 3/8

10:00 am-8:10 am

2 stops39h 10m

Southampton Eastleigh

Sat 3/14

5:30 pm-7:12 pm

2 stops32h 42m

$870

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 3/7

5:45 pm-8:10 am

2 stops54h 25m

Southampton Eastleigh

Sat 3/14

5:30 pm-6:22 pm

2 stops31h 52m

$875

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Fri 1/9

9:00 pm-3:35 pm

2 stops34h 35m

Southampton Eastleigh

Fri 1/16

8:10 pm-4:10 pm

2 stops28h 00m

$971

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 3/28

10:03 pm-8:35 am

2 stops26h 32m

Southampton Eastleigh

Sun 4/5

5:20 pm-8:52 pm

2 stops35h 32m

$1,069

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 3/28

10:03 pm-8:35 am

2 stops26h 32m

Southampton Eastleigh

Sat 4/4

9:15 am-6:22 pm

2 stops41h 07m

$1,114

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 3/8

10:00 am-5:00 pm

2 stops24h 00m

Southampton Eastleigh

Fri 3/13

8:40 am-10:49 pm

2 stops21h 09m

$1,120

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 3/7

2:00 pm-5:15 pm

1 stop19h 15m

Southampton Eastleigh

Fri 3/13

8:40 am-10:49 pm

2 stops21h 09m

$1,165

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Compare providers for flights from San Diego to Southampton

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 San Diego to Southampton in November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 San Diego-Southampton flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Southampton flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Diego-Southampton flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Southampton 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 San Diego-Southampton 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 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, December is the cheapest month in which you can book a flight from San Diego to Southampton (average of $469). Flying from San Diego to Southampton in June is currently the most expensive (average of $829). 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 November 26, 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 17h 40m. 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, December is the cheapest month in which you can book a flight from San Diego to Southampton (average of $469). Flying from San Diego to Southampton in June is currently the most expensive (average of $829). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to Gatwick flights
Los Angeles to London City flights
San Francisco to Gatwick flights
San Francisco to London City flights
Los Angeles to Stansted flights
San Diego to Heathrow flights
Ontario to Heathrow flights
Los Angeles to Luton flights
San Francisco to Stansted flights
Santa Ana to Heathrow flights
Las Vegas to Heathrow flights
San Francisco to Luton flights
San Diego to Gatwick flights
San Jose to Heathrow flights
San Diego to London City flights
Los Angeles to Edinburgh flights
Las Vegas to Gatwick flights
San Francisco to Edinburgh flights
Sacramento to Heathrow flights
Las Vegas to London City flights
Los Angeles to Manchester flights
Oakland to Heathrow flights
San Diego to Stansted flights
Sacramento to Gatwick flights
Burbank to Heathrow flights
San Jose to Gatwick flights
Santa Ana to Edinburgh flights
Ontario to Gatwick flights
San Francisco to Southampton flights
Reno to Heathrow flights
San Francisco to Manchester flights
San Jose to Edinburgh flights
Santa Ana to Gatwick flights
Ontario to Manchester flights
Sacramento to London City flights
Ontario to Edinburgh flights
Santa Ana to Manchester flights
Palm Springs to Heathrow flights
Oakland to Gatwick flights
Las Vegas to Stansted flights
Las Vegas to Edinburgh flights
Los Angeles to Southampton flights
Las Vegas to Luton flights
San Diego to Edinburgh flights
Long Beach to Heathrow flights
Santa Rosa to Heathrow flights
Reno to Gatwick flights
Oakland to Edinburgh flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.