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Southampton

$556+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOU
Mar 23 — Mar 301
Mon 3/23
Mon 3/30
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 February 21, 2026.

This Delta deal was found by Cheapflights users on 2/20. 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 8/246:10 pm
IAD
-
SOU
1 stop9h 35m
Delta
Mon 9/79:05 am
SOU
-
IAD
1 stop11h 30m
Delta
Deal found 2/20$790
This KLM deal was found by Cheapflights users on 2/18. 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.
Fri 4/35:40 pm
IAD
-
SOU
1 stop10h 05m
KLM
Fri 4/105:20 pm
SOU
-
IAD
1 stop27h 15m
KLM
Deal found 2/18$791
This Delta deal was found by Cheapflights users on 2/18. 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 4/37:00 am
IAD
-
SOU
2 stops20h 45m
Delta
Thu 4/99:05 am
SOU
-
IAD
1 stop11h 30m
Delta
Deal found 2/18$796
This Delta deal was found by Cheapflights users on 2/20. 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 4/611:00 am
DCA
-
SOU
2 stops16h 35m
Delta
Mon 4/139:05 am
SOU
-
DCA
2 stops18h 17m
Delta
Deal found 2/20$804
This Delta deal was found by Cheapflights users on 2/18. 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 4/311:00 am
DCA
-
SOU
2 stops16h 45m
Delta
Fri 4/109:05 am
SOU
-
DCA
2 stops18h 03m
Delta
Deal found 2/18$805
This KLM deal was found by Cheapflights users on 2/17. 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 5/95:00 pm
DCA
-
SOU
2 stops18h 50m
KLM
Fri 5/229:05 am
SOU
-
DCA
2 stops19h 19m
KLM
Deal found 2/17$846
This Virgin Atlantic deal was found by Cheapflights users on 2/18. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/35:40 pm
IAD
-
SOU
1 stop10h 05m
Virgin Atlantic
Fri 4/109:05 am
SOU
-
IAD
2 stops19h 36m
Virgin Atlantic
Deal found 2/18$856
This Virgin Atlantic deal was found by Cheapflights users on 2/20. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:10 pm
IAD
-
SOU
1 stop9h 25m
Virgin Atlantic
Mon 4/139:05 am
SOU
-
IAD
2 stops18h 58m
Virgin Atlantic
Deal found 2/20$864
This Kiwi.com deal was found by Cheapflights users on 2/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1010:00 pm
IAD
-
SOU
1 stop13h 35m
Aer Lingus
Thu 3/199:30 am
SOU
-
IAD
1 stop15h 00m
Aer Lingus
Deal found 2/20$876
This KLM deal was found by Cheapflights users on 2/19. 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 9/79:05 am
SOU
-
IAD
1 stop11h 30m
KLM
Deal found 2/19$901
This Delta deal was found by Cheapflights users on 2/19. 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 8/2911:00 am
DCA
-
SOU
2 stops16h 45m
Delta
Mon 9/79:05 am
SOU
-
DCA
2 stops17h 45m
Delta
Deal found 2/19$915
This KLM deal was found by Cheapflights users on 2/21. 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.
Mon 3/91:40 pm
DCA
-
SOU
2 stops14h 40m
KLM
Fri 3/138:50 am
SOU
-
DCA
2 stops16h 51m
KLM
Deal found 2/21$1,308

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 February 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$790
(KLM)

One-way from

$556
(KAYAK)

Popular in

June

Cheapest in

September

Average price

$644
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 ($97 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 February 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 February 21, 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

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 4/4

5:40 pm-8:45 am

1 stop10h 05m

Southampton Eastleigh

Fri 4/10

5:20 pm-3:35 pm

1 stop27h 15m

$791

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 4/3

5:40 pm-8:45 am

1 stop10h 05m

Southampton Eastleigh

Fri 4/10

5:20 pm-3:35 pm

1 stop27h 15m

$791

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 4/3

5:40 pm-8:45 am

1 stop10h 05m

Southampton Eastleigh

Fri 4/10

5:20 pm-3:35 pm

1 stop27h 15m

$791

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 4/3

7:00 am-8:45 am

2 stops20h 45m

Southampton Eastleigh

Thu 4/9

9:05 am-3:35 pm

1 stop11h 30m

$796

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Mon 4/6

11:00 am-8:35 am

2 stops16h 35m

Southampton Eastleigh

Mon 4/13

9:05 am-10:22 pm

2 stops18h 17m

$804

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sun 4/5

12:16 pm-8:35 am

2 stops15h 19m

Southampton Eastleigh

Sat 4/11

5:20 pm-7:55 pm

2 stops31h 35m

$805

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 4/3

11:00 am-8:45 am

2 stops16h 45m

Southampton Eastleigh

Thu 4/9

9:05 am-9:41 pm

2 stops17h 36m

$805

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sat 4/4

12:29 pm-8:45 am

2 stops15h 16m

Southampton Eastleigh

Sat 4/11

5:20 pm-5:49 pm

2 stops29h 29m

$805

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 4/3

11:00 am-8:45 am

2 stops16h 45m

Southampton Eastleigh

Sat 4/11

5:20 pm-5:49 pm

2 stops29h 29m

$805

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 4/3

11:00 am-8:45 am

2 stops16h 45m

Southampton Eastleigh

Fri 4/10

9:05 am-11:35 pm

2 stops19h 30m

$805

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 28 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 $86). Flying from District of Columbia to Southampton in June is currently the most expensive (average of $706). 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 Virgin Atlantic can get you from District of Columbia to Southampton in just under 10h 05m. Your travel time can differ by up to . There are 3639 mi between District of Columbia and Southampton.

  • 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 $86). Flying from District of Columbia to Southampton in June is currently the most expensive (average of $706). 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

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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 February 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$789Average$1,079FlexibilityNo cancel feeOn-timeN/A

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