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Cheap flights from Southampton to Washington, D.C. Reagan-National Airport from £669

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — DCA
26 Apr — 3 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Reagan-National

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Reagan-National
Explore the most affordable flight options available from Southampton to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 March 2026.

Mon 11/509:20
SOU
-
DCA
2 stops18h 39m
Multiple Airlines
Mon 18/506:00
DCA
-
SOU
2 stops21h 40m
Multiple Airlines
Deal found 26/3£669
Thu 7/520:00
SOU
-
DCA
2 stops31h 59m
Multiple Airlines
Thu 14/506:00
DCA
-
SOU
2 stops21h 40m
Multiple Airlines
Deal found 23/3£784
Sat 9/509:20
SOU
-
DCA
2 stops42h 39m
Multiple Airlines
Sat 16/506:00
DCA
-
SOU
2 stops21h 35m
Multiple Airlines
Deal found 24/3£885
Wed 8/420:00
SOU
-
DCA
2 stops28h 05m
Multiple Airlines
Tue 14/410:00
DCA
-
SOU
2 stops17h 05m
Multiple Airlines
Deal found 24/3£900
Fri 26/609:05
SOU
-
DCA
2 stops17h 58m
Delta
Thu 23/718:30
DCA
-
SOU
2 stops18h 05m
Delta
Deal found 25/3£954
Sat 9/509:15
SOU
-
DCA
2 stops17h 31m
Delta
Sat 16/511:00
DCA
-
SOU
2 stops16h 45m
Delta
Deal found 25/3£979
Sat 27/609:15
SOU
-
DCA
2 stops18h 25m
Delta
Fri 24/718:30
DCA
-
SOU
2 stops17h 30m
Delta
Deal found 25/3£984
Fri 26/609:05
SOU
-
DCA
2 stops29h 13m
Delta
Sat 25/712:23
DCA
-
SOU
2 stops15h 22m
Delta
Deal found 25/3£1,014

Find flight deals from Southampton to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to Reagan-National (DCA). 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 27 March 2026.

Round-trip from

£669

Popular in

July

Cheapest in

February

Average price

£522
11/5-18/5
  • 11/5-18/5
  • 4 total stops
  • 40h 19m total
  • Southampton to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Reagan-National 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 858,174 searches. Data last updated 27 March 2026.
Use the filters below to find and compare flights from Southampton to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Mon 11/5

09:20-10:19

3 stops29h 59m

Washington, D.C. Reagan-National

Mon 18/5

06:00-19:30

3 stops32h 30m

£761

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Thu 7/5

20:00-22:59

2 stops31h 59m

Washington, D.C. Reagan-National

Thu 14/5

06:00-08:40

2 stops21h 40m

£784

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Wed 8/4

20:00-19:05

2 stops28h 05m

Washington, D.C. Reagan-National

Tue 14/4

10:00-08:05

2 stops17h 05m

£900

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Fri 26/6

09:05-22:03

2 stops17h 58m

Washington, D.C. Reagan-National

Thu 23/7

18:30-17:35

2 stops18h 05m

£954

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sat 9/5

09:15-21:46

2 stops17h 31m

Washington, D.C. Reagan-National

Sat 16/5

11:00-08:45

2 stops16h 45m

£979

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sat 27/6

09:15-22:40

2 stops18h 25m

Washington, D.C. Reagan-National

Thu 23/7

09:00-17:35

2 stops27h 35m

£984

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Fri 26/6

09:05-09:18

2 stops29h 13m

Washington, D.C. Reagan-National

Sat 25/7

12:23-08:45

2 stops15h 22m

£1,014
Fastest return journey

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Fri 26/6

09:05-22:02

2 stops17h 57m

Washington, D.C. Reagan-National

Fri 24/7

12:55-08:45

2 stops14h 50m

£1,349
Cheapest one-way
Fastest single journey

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Thu 13/8

09:15-21:50

2 stops17h 35m

£1,679

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sat 15/8

09:15-08:37

2 stops28h 22m

£1,679

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Southampton to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Southampton with our price prediction graph.
Estimated return 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 Southampton to Washington, D.C. Reagan-National Airport

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

Currently, February is the cheapest month in which you can book a flight from Southampton to Washington, D.C. Reagan-National Airport (average of £378). Flying from Southampton to Washington, D.C. Reagan-National Airport in April is currently the most expensive (average of £554). 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 Southampton to Reagan-National. 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 from for flights from Southampton to Washington, D.C. Reagan-National?

    If you book a flight to Washington, D.C. Reagan-National from Southampton, you will be flying from 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 Eastleigh to Washington, D.C. Reagan-National per day from 0 different airlines.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Southampton to Washington, D.C. Reagan-National Airport (average of £378). Flying from Southampton to Washington, D.C. Reagan-National Airport in April is currently the most expensive (average of £554). 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

Travelling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Gaithersburg
Woodbridge
Arlington
Alexandria

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Southampton to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
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Doncaster to Dulles Intl flights

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How does Cheapflights help users find flights from Southampton to Reagan-National?

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Why should you use Cheapflights to find cheap flight tickets from Southampton to Reagan-National?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Reagan-National from Southampton.

Can Cheapflights find flights from Southampton to Reagan-National with no change fees?

Need flexible booking options for your flight to Reagan-National from Southampton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Southampton to Reagan-National become cheaper?

Yes, Cheapflights offers price alerts on Southampton to Reagan-National flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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