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$499+ Cheap flights from Reagan-National (DCA) 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SOU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Reagan-National to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 September 11, 2025.

Round-trip from

$827
(Delta)

One-way from

$499
(KLM)

Popular in

June

Cheapest in

January

Average price

$653
From Washington, D.C. Reagan-National to Southampton Eastleigh
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One-way flight from Washington, D.C. Reagan-National to Southampton Eastleigh
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Highest demand for flights based on searches. 11% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Reagan-National to Southampton

Cheapest flights from Reagan-National to Southampton
Explore the most affordable flight options available from Reagan-National to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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 10/102:59 pmDCA - SOU
2 stops21h 31mDelta
Thu 10/169:20 amSOU - DCA
2 stops17h 40mDelta
Deal found 9/11$827
This Delta deal was found by Cheapflights users on 9/11. 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 10/1111:10 amDCA - SOU
2 stops16h 35mDelta
Fri 10/175:35 pmSOU - DCA
2 stops31h 58mDelta
Deal found 9/11$902
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 10/2510:20 amDCA - SOU
2 stops18h 30mDelta
Sat 11/19:25 amSOU - DCA
2 stops17h 34mDelta
Deal found 9/10$951
This Delta deal was found by Cheapflights users on 9/11. 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 10/107:59 amDCA - SOU
2 stops19h 46mDelta
Fri 10/175:35 pmSOU - DCA
2 stops31h 58mDelta
Deal found 9/11$1,026
This Delta deal was found by Cheapflights users on 9/11. 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 10/118:00 amDCA - SOU
2 stops19h 45mDelta
Sat 10/186:05 pmSOU - DCA
2 stops28h 55mDelta
Deal found 9/11$1,091
This KLM deal was found by Cheapflights users on 9/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/141:20 pmDCA - SOU
2 stops14h 25mKLM
Fri 9/199:20 amSOU - DCA
2 stops16h 22mKLM
Deal found 9/10$1,159
This Delta deal was found by Cheapflights users on 9/11. 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 10/107:59 amDCA - SOU
2 stops19h 46mDelta
Sat 10/186:05 pmSOU - DCA
2 stops28h 55mDelta
Deal found 9/11$1,215

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Southampton that are best for you.

Fly from

Reagan-National

Fly to

Southampton

Route

Depart

Return

Price

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 10/10

8:59 am-8:45 am

2 stops18h 46m

Southampton Eastleigh

Mon 10/20

5:35 pm-6:59 pm

2 stops30h 24m

$827

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 10/10

6:59 am-8:45 am

2 stops20h 46m

Southampton Eastleigh

Sun 10/19

6:25 pm-6:59 pm

2 stops29h 34m

$827

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 10/10

2:59 pm-5:30 pm

2 stops21h 31m

Southampton Eastleigh

Thu 10/16

9:20 am-10:00 pm

2 stops17h 40m

$827

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sat 10/11

8:00 am-8:45 am

2 stops19h 45m

Southampton Eastleigh

Mon 10/20

5:35 pm-6:59 pm

2 stops30h 24m

$827

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sun 10/26

7:35 pm-5:25 pm

2 stops17h 50m

Southampton Eastleigh

Sun 11/2

9:30 am-11:52 pm

2 stops19h 22m

$827

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Thu 10/9

10:25 am-8:45 am

2 stops17h 20m

Southampton Eastleigh

Fri 10/24

9:20 am-10:40 pm

2 stops18h 20m

$827

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sat 10/11

12:31 pm-8:45 am

2 stops15h 14m

Southampton Eastleigh

Sun 10/19

6:25 pm-10:40 pm

2 stops33h 15m

$827

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 3/6

6:05 am-8:50 am

2 stops21h 45m

Southampton Eastleigh

Sat 3/21

9:25 am-10:56 pm

2 stops17h 31m

$834

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sat 10/11

11:10 am-8:45 am

2 stops16h 35m

Southampton Eastleigh

Fri 10/17

5:35 pm-8:33 pm

2 stops31h 58m

$902

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sat 10/25

10:20 am-9:50 am

2 stops18h 30m

Southampton Eastleigh

Sat 11/1

9:25 am-10:59 pm

2 stops17h 34m

$951

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results
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Best time to book a flight from Reagan-National to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Reagan-National 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 Washington, D.C. Reagan-National Airport to Southampton

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Southampton?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Southampton (average of $787). Flying from Washington, D.C. Reagan-National Airport 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 DCA to SOU?

Find hourly flight availability from Reagan-National 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 September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Southampton as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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 Washington, D.C. Reagan-National?

    If you book a flight to Southampton from Washington, D.C. Reagan-National, you will be flying to Eastleigh, which is the city’s only airport. Southampton Eastleigh (SOU) is located 3.5 mi from the center of Southampton. There are 0 flights from Washington, D.C. Reagan-National to Eastleigh per day from 0 different airlines.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Southampton?

    Delta can get you from Washington, D.C. Reagan-National Airport to Southampton in just under 18h 46m. Your travel time can differ by up to . The distance from Washington, D.C. Reagan-National Airport to Southampton is about 3626 mi.

  • Can I find deals for flights from Reagan-National to Southampton that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Southampton?

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

  • Can I find deals for business class flights from Reagan-National to Southampton?

    Yes. Cheapflights offers flight deals from Reagan-National 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 Washington, D.C. Reagan-National Airport to Southampton?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Southampton (average of $787). Flying from Washington, D.C. Reagan-National Airport 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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Alternative routes for Reagan-National to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
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