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Cheap flights from Southampton to Washington, D.C. Reagan-National Airport from £638

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — DCA
3 Sep — 10 Sep1
1 adult

Cheap 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 29 August 2025.

Round-trip from

£638

Popular in

July

Cheapest in

February

Average price

£614
Delta
  • Delta
  • 12/10-19/10
  • 4 total stops
  • 34h 22m total
  • Southampton to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Southampton to Reagan-National

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 29 August 2025.

Sun 12/1009:20SOU - DCA
2 stops17h 47mDelta
Sun 19/1011:10DCA - SOU
2 stops16h 35mDelta
Deal found 28/8£638
Sat 11/1009:20SOU - DCA
2 stops18h 39mDelta
Sat 18/1012:31DCA - SOU
2 stops15h 14mDelta
Deal found 27/8£662
Mon 20/1009:20SOU - DCA
2 stops17h 23mDelta
Sun 26/1013:45DCA - SOU
2 stops14h 25mDelta
Deal found 28/8£708
Sun 12/1009:10SOU - DCA
3 stops18h 24mMultiple Airlines
Sun 19/1016:35DCA - SOU
3 stops21h 55mMultiple Airlines
Deal found 28/8£744
Sat 11/1016:25SOU - DCA
3 stops34h 26mMultiple Airlines
Sat 18/1018:50DCA - SOU
2 stops18h 00mMultiple Airlines
Deal found 27/8£1,058

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 29 August 2025.
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

Southampton

Fly to

Reagan-National

Route

Depart

Return

Price

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sun 12/10

09:20-22:07

2 stops17h 47m

Washington, D.C. Reagan-National

Sun 19/10

11:10-08:45

2 stops16h 35m

£638

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sat 11/10

09:20-22:59

2 stops18h 39m

Washington, D.C. Reagan-National

Sat 18/10

12:31-08:45

2 stops15h 14m

£662

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Tue 21/10

09:20-18:59

2 stops14h 39m

Washington, D.C. Reagan-National

Sun 26/10

10:20-08:10

2 stops17h 50m

£708

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Wed 22/10

09:20-18:59

2 stops14h 39m

Washington, D.C. Reagan-National

Sun 26/10

10:20-08:10

2 stops17h 50m

£708

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Mon 20/10

09:20-21:43

2 stops17h 23m

Washington, D.C. Reagan-National

Sun 26/10

13:45-08:10

2 stops14h 25m

£708

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sun 12/10

09:10-22:34

3 stops18h 24m

Washington, D.C. Reagan-National

Sun 19/10

16:35-19:30

3 stops21h 55m

£744

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sat 11/10

16:25-21:51

3 stops34h 26m

Washington, D.C. Reagan-National

Sat 18/10

18:50-17:50

2 stops18h 00m

£1,058

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Mon 1/12

18:05-16:59

2 stops27h 54m

£1,215

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Tue 2/12

08:40-21:14

2 stops17h 34m

£1,215

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sun 30/11

18:05-23:58

2 stops34h 53m

£1,215

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 13 results
1
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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 £625). Flying from Southampton to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £855). 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.

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

    There are many flights that can get you from Southampton to Washington, D.C. Reagan-National Airport in 17h 47m. Fly via Delta to get the fastest option. Airlines will cover a distance of 3626 mi.

  • 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 £625). Flying from Southampton to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £855). 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
Woodbridge
Arlington
College Park
Laurel
Tysons

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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Fly with Cheapflights

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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?

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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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