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$588+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SOU
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap 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 January 26, 2026.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:14 am
DCA
-
SOU
2 stops22h 06m
Delta
Thu 3/198:50 am
SOU
-
DCA
2 stops17h 46m
Delta
Deal found 1/26$787
This KLM deal was found by Cheapflights users on 1/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:00 am
DCA
-
SOU
2 stops16h 10m
KLM
Fri 12/48:40 am
SOU
-
DCA
2 stops16h 33m
KLM
Deal found 1/25$801
This Delta deal was found by Cheapflights users on 1/25. 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 8/2911:00 am
DCA
-
SOU
2 stops16h 45m
Delta
Mon 9/79:05 am
SOU
-
DCA
2 stops17h 45m
Delta
Deal found 1/25$899
This Delta deal was found by Cheapflights users on 1/25. 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.
Mon 7/612:00 pm
DCA
-
SOU
2 stops15h 45m
Delta
Fri 7/179:15 am
SOU
-
DCA
2 stops17h 35m
Delta
Deal found 1/25$1,053
This Delta deal was found by Cheapflights users on 1/25. 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 7/41:45 pm
DCA
-
SOU
2 stops14h 00m
Delta
Fri 7/179:15 am
SOU
-
DCA
2 stops17h 35m
Delta
Deal found 1/25$1,113
This Delta deal was found by Cheapflights users on 1/25. 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.
Mon 6/225:00 pm
DCA
-
SOU
2 stops18h 50m
Delta
Wed 7/19:05 am
SOU
-
DCA
2 stops17h 45m
Delta
Deal found 1/25$1,229
This Delta deal was found by Cheapflights users on 1/25. 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.
Mon 6/225:00 pm
DCA
-
SOU
2 stops18h 50m
Delta
Mon 7/66:05 pm
SOU
-
DCA
2 stops29h 06m
Delta
Deal found 1/25$1,230
This Delta deal was found by Cheapflights users on 1/25. 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 6/196:05 am
DCA
-
SOU
2 stops21h 40m
Delta
Wed 7/19:05 am
SOU
-
DCA
2 stops17h 45m
Delta
Deal found 1/25$1,299
This Delta deal was found by Cheapflights users on 1/25. 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 6/196:05 am
DCA
-
SOU
2 stops21h 40m
Delta
Mon 7/66:05 pm
SOU
-
DCA
2 stops29h 06m
Delta
Deal found 1/25$1,300
This Delta deal was found by Cheapflights users on 1/25. 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 6/196:05 am
DCA
-
SOU
2 stops21h 40m
Delta
Sun 7/55:30 pm
SOU
-
DCA
2 stops30h 48m
Delta
Deal found 1/25$1,369
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1211:05 am
DCA
-
SOU
2 stops28h 15m
Multiple Airlines
Thu 3/198:10 pm
SOU
-
DCA
3 stops29h 46m
Multiple Airlines
Deal found 1/26$1,833

Find 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 January 26, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$787
(Delta)

One-way from

$588
(Delta)

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 Washington, D.C. Reagan-National to Southampton Eastleigh
Search Deals
One-way flight from Washington, D.C. Reagan-National 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 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 January 26, 2026.
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

Wed 3/11

12:10 pm-8:20 am

2 stops16h 10m

Southampton Eastleigh

Tue 3/24

8:50 am-9:41 pm

2 stops16h 51m

$787

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Thu 3/12

5:09 pm-5:00 pm

2 stops19h 51m

Southampton Eastleigh

Wed 3/25

8:50 am-9:41 pm

2 stops16h 51m

$787

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Thu 3/12

6:14 am-8:20 am

2 stops22h 06m

Southampton Eastleigh

Thu 3/19

8:50 am-10:36 pm

2 stops17h 46m

$787

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Wed 3/11

11:00 am-8:20 am

2 stops17h 20m

Southampton Eastleigh

Wed 3/25

8:50 am-9:41 pm

2 stops16h 51m

$787

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Thu 3/12

5:09 pm-5:00 pm

2 stops19h 51m

Southampton Eastleigh

Tue 3/24

8:50 am-9:41 pm

2 stops16h 51m

$787

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Mon 3/9

6:30 pm-5:00 pm

2 stops18h 30m

Southampton Eastleigh

Wed 3/25

8:50 am-9:41 pm

2 stops16h 51m

$787

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Mon 7/6

1:30 pm-8:45 am

2 stops14h 15m

Southampton Eastleigh

Thu 7/16

9:15 am-11:26 pm

2 stops19h 11m

$1,053

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Mon 7/6

1:30 pm-8:45 am

2 stops14h 15m

Southampton Eastleigh

Wed 7/15

6:05 pm-5:23 pm

2 stops28h 18m

$1,053

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Mon 7/6

12:00 pm-8:45 am

2 stops15h 45m

Southampton Eastleigh

Fri 7/17

9:15 am-9:50 pm

2 stops17h 35m

$1,053

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sat 7/4

1:45 pm-8:45 am

2 stops14h 00m

Southampton Eastleigh

Wed 7/15

6:05 pm-5:23 pm

2 stops28h 18m

$1,113

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 17 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, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Southampton (average of $31). Flying from Washington, D.C. Reagan-National Airport to Southampton in June is currently the most expensive (average of $834). 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 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 17h 17m. 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, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Southampton (average of $31). Flying from Washington, D.C. Reagan-National Airport to Southampton in June is currently the most expensive (average of $834). 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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