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Cheap flights from Southampton to Washington, D.C. Reagan-National Airport from £446

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 31/12. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — DCA
16 Sep — 23 Sep1
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 17 August 2026.

Mon 14/909:05 -
2 stops19h 30m
Sun 20/911:10 -
2 stops16h 25m
Deal found 15/8£658
Tue 1/909:05 -
2 stops17h 40m
Mon 7/911:50 -
2 stops15h 45m
Deal found 14/8£666
Mon 14/917:20 -
3 stops34h 14m
Sun 20/912:55 -
3 stops25h 35m
Deal found 15/8£776
Tue 1/917:20 -
3 stops34h 11m
Mon 7/918:55 -
2 stops14h 35m
Deal found 14/8£1,064
Fri 21/809:15 -
2 stops18h 44m
Mon 24/812:55 -
2 stops14h 50m
Deal found 16/8£1,143
Fri 21/820:10 -
3 stops31h 21m
Mon 24/816:20 -
2 stops22h 10m
Deal found 16/8£1,360

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 17 August 2026.

Round-trip from

£658

One-way from

£446

Popular in

June

Cheapest in

February

Average price

£536
Delta
  • Delta
  • 14/9-20/9
  • 4 total stops
  • 35h 55m total
  • Southampton to Washington, D.C.
Search Deals
Delta
  • Delta
  • 31/12
  • 2 total stops
  • 14h 35m total
  • Southampton to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 17 August 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 Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Mon 14/9

09:05-23:35

2 stops19h 30m

Washington, D.C. Reagan-National

Sun 20/9

11:10-08:35

2 stops16h 25m

£658
Fastest return journey

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Tue 1/9

09:05-21:45

2 stops17h 40m

Washington, D.C. Reagan-National

Mon 7/9

11:50-08:35

2 stops15h 45m

£666

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Mon 14/9

17:20-22:34

3 stops34h 14m

Washington, D.C. Reagan-National

Sun 20/9

12:55-19:30

3 stops25h 35m

£776

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Tue 1/9

17:20-22:31

3 stops34h 11m

Washington, D.C. Reagan-National

Mon 7/9

18:55-14:30

2 stops14h 35m

£1,064
Cheapest one-way
Fastest single journey

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Thu 31/12

08:40-18:15

2 stops14h 35m

£446

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Mon 23/11

08:40-22:44

2 stops19h 04m

£446

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Sun 11/10

09:15-23:47

2 stops19h 32m

£1,339

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Mon 12/10

09:05-23:07

2 stops19h 02m

£1,339

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Sat 10/10

09:20-22:55

2 stops18h 35m

£1,339

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Sorted by cheapest first

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.

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 19h 30m. 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.

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
Gaithersburg
Oxon Hill
Alexandria
Hanover
Woodbridge
Glen Burnie
Springfield

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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