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Southampton

$436+ Cheap flights from District of Columbia 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOU
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from District of Columbia to Southampton

Cheapest flights from District of Columbia to Southampton
Explore the most affordable flight options available from District of Columbia to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Delta deal was found by Cheapflights users on 1/27. 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 3/135:09 pm
DCA
-
SOU
2 stops19h 51m
Delta
Fri 3/208:50 am
SOU
-
DCA
2 stops17h 46m
Delta
Deal found 1/27$790
This Delta deal was found by Cheapflights users on 1/27. 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 11/185:35 pm
IAD
-
SOU
1 stop9h 45m
Delta
Thu 12/38:50 am
SOU
-
IAD
1 stop11h 55m
Delta
Deal found 1/27$790
This Delta deal was found by Cheapflights users on 1/28. 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.
Mon 8/176:10 pm
IAD
-
SOU
1 stop9h 35m
Delta
Sun 8/239:15 am
SOU
-
IAD
1 stop11h 20m
Delta
Deal found 1/28$791
This Delta deal was found by Cheapflights users on 1/27. 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 11/1812:30 pm
IAD
-
SOU
2 stops14h 50m
Delta
Fri 12/48:40 am
SOU
-
IAD
1 stop12h 05m
Delta
Deal found 1/27$795
This Delta deal was found by Cheapflights users on 1/27. 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 11/1811:00 am
DCA
-
SOU
2 stops16h 20m
Delta
Wed 12/25:30 pm
SOU
-
DCA
2 stops28h 01m
Delta
Deal found 1/27$804
This Delta deal was found by Cheapflights users on 1/27. 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 11/1812:30 pm
IAD
-
SOU
2 stops14h 50m
Delta
Wed 12/25:30 pm
SOU
-
IAD
2 stops30h 40m
Delta
Deal found 1/27$804
This Delta deal was found by Cheapflights users on 1/28. 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 8/1512:59 pm
DCA
-
SOU
2 stops23h 01m
Delta
Mon 8/249:15 am
SOU
-
DCA
2 stops19h 11m
Delta
Deal found 1/28$805
This Delta deal was found by Cheapflights users on 1/27. 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 11/185:35 pm
IAD
-
SOU
1 stop9h 45m
Delta
Tue 12/18:40 am
SOU
-
IAD
1 stop12h 05m
Delta
Deal found 1/27$828
This Delta deal was found by Cheapflights users on 1/28. 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.
Thu 8/65:40 pm
IAD
-
SOU
1 stop10h 05m
Delta
Wed 8/126:05 pm
SOU
-
IAD
1 stop26h 30m
Delta
Deal found 1/28$829
This Delta deal was found by Cheapflights users on 1/28. 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.
Thu 8/65:40 pm
IAD
-
SOU
1 stop10h 05m
Delta
Tue 8/116:05 pm
SOU
-
IAD
2 stops27h 20m
Delta
Deal found 1/28$838
This Delta deal was found by Cheapflights users on 1/28. 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 8/56:25 pm
DCA
-
SOU
2 stops18h 10m
Delta
Fri 8/149:15 am
SOU
-
DCA
2 stops13h 56m
Delta
Deal found 1/28$843
This KLM deal was found by Cheapflights users on 1/26. 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.
Sat 8/295:40 pm
IAD
-
SOU
1 stop10h 05m
KLM
Mon 9/75:20 pm
SOU
-
IAD
1 stop27h 15m
KLM
Deal found 1/26$885

Find flight deals from District of Columbia to Southampton

Keep the following information in mind while searching for District of Columbia to Southampton flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$790
(Delta)

One-way from

$436
(KAYAK)

Popular in

June

Cheapest in

September

Average price

$643
Provider with most accurate pricing for Washington, D.C. (WAS)-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London (LON) flights.
Search Deals
From District of Columbia to Southampton Eastleigh
Search Deals
One-way flight from District of Columbia to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 January 29, 2026.
Use the filters below to find and compare flights from District of Columbia to Southampton that are best for you.

Fly from

District of Columbia

Fly to

Southampton

Route

Depart

Return

Price

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 3/13

5:09 pm-5:00 pm

2 stops19h 51m

Southampton Eastleigh

Fri 3/20

8:50 am-10:36 pm

2 stops17h 46m

$790

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 3/13

7:59 pm-5:00 pm

2 stops17h 01m

Southampton Eastleigh

Fri 3/20

8:50 am-5:05 pm

1 stop12h 15m

$946

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 7/27

6:10 pm-5:35 pm

1 stop18h 25m

Southampton Eastleigh

Mon 8/3

6:05 pm-3:35 pm

1 stop26h 30m

$1,005

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 5/21

5:15 pm-8:40 am

1 stop10h 25m

Southampton Eastleigh

Wed 5/27

9:10 am-3:45 pm

1 stop11h 35m

$1,044

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 7/9

5:40 pm-8:45 am

1 stop10h 05m

Southampton Eastleigh

Fri 7/17

9:15 am-3:35 pm

1 stop11h 20m

$1,103

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 5/23

5:40 pm-4:50 pm

1 stop18h 10m

Southampton Eastleigh

Thu 5/28

9:05 am-3:35 pm

1 stop11h 30m

$1,113

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 5/28

5:40 pm-8:35 am

1 stop9h 55m

Southampton Eastleigh

Mon 6/8

5:20 pm-3:35 pm

1 stop27h 15m

$1,113

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 5/23

8:30 pm-5:50 pm

2 stops16h 20m

Southampton Eastleigh

Thu 5/28

9:25 am-8:29 pm

3 stops40h 04m

$1,164

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 7/17

5:40 pm-8:45 am

1 stop10h 05m

Southampton Eastleigh

Sun 7/26

9:15 am-3:35 pm

1 stop11h 20m

$1,169

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 7/16

5:40 pm-8:45 am

1 stop10h 05m

Southampton Eastleigh

Sun 7/26

9:15 am-3:35 pm

1 stop11h 20m

$1,172

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 21 results
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Best time to book a flight from District of Columbia to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from District of Columbia 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 District of Columbia to Southampton

What is the cheapest month to book a flight from District of Columbia to Southampton?

Currently, March is the cheapest month in which you can book a flight from District of Columbia to Southampton (average of $31). Flying from District of Columbia to Southampton in June is currently the most expensive (average of $719). 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.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Southampton from District of Columbia?

    For a flight from District of Columbia to Southampton, you will be flying into Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city.

  • How long is the flight from District of Columbia to Southampton?

    Delta, KLM, and Aer Lingus can get you from District of Columbia to Southampton in just under 10h 25m. Your travel time can differ by up to 9h 26m. There are 3639 mi between District of Columbia and Southampton. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from District of Columbia to Southampton that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Southampton?

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

  • Can I find deals for business class flights from District of Columbia to Southampton?

    Yes. Cheapflights offers flight deals from District of Columbia 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 District of Columbia to Southampton?

    Currently, March is the cheapest month in which you can book a flight from District of Columbia to Southampton (average of $31). Flying from District of Columbia to Southampton in June is currently the most expensive (average of $719). 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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Alternative routes for District of Columbia to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from District of Columbia to Southampton

Discover the top airline that operate flights from District of Columbia to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$789Average$1,079FlexibilityNo cancel feeOn-timeN/A

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