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Cheap flights from Southampton to Washington, D.C. from £663

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to Washington, D.C. departing on 27/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Southampton to Washington, D.C. (SOU-DCA)

Cheap return flights

KLM Logo
09:20 - 23:41SOU-DCA
19h 21m2 stops
KLM Logo
14:00 - 08:45DCA-SOU
13h 45m2 stops
£663KLM
Find Deal
Sa, 27 Sep - Sa, 4 Okt
Logo
09:40 - 19:44SOU-DCA
15h 04m2 stops
Logo
12:55 - 19:30DCA-SOU
25h 35m3 stops
£843
Find Deal
Sa, 27 Sep - Sa, 4 Okt
Logo
09:40 - 08:59SOU-DCA
28h 19m3 stops
Logo
16:35 - 19:30DCA-SOU
21h 55m3 stops
£863
Find Deal
Sa, 27 Sep - Sa, 4 Okt

momondo Fare Finder

 
Customise your flight search to find flights from Southampton to Washington, D.C. Reagan-National Airport 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, momondo users made 279,928 searches. Data last updated 15 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

Fly to

Route

Depart

Return

Price

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sa 27/9

09:20-23:41

2 stops19h 21m

Washington, D.C. Reagan-National

Sa 4/10

14:00-08:45

2 stops13h 45m

£663

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sa 27/9

09:40-19:44

2 stops15h 04m

Washington, D.C. Reagan-National

Sa 4/10

12:55-19:30

3 stops25h 35m

£843

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sa 27/9

09:40-08:59

3 stops28h 19m

Washington, D.C. Reagan-National

Sa 4/10

16:35-19:30

3 stops21h 55m

£863

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

So 4/1

18:05-18:06

2 stops29h 01m

£1,209

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sa 3/1

09:25-10:25

2 stops30h 00m

£1,341

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Southampton to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from Southampton to Washington, D.C. Reagan-National Airport is on a Thursday. Travellers who choose to depart for Washington, D.C. Reagan-National Airport on a Thursday will often find tickets for as low as £552. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Reagan-National Airport on Saturday is £613.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest Southampton to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the morning. Our users have found flights to Washington, D.C. Reagan-National Airport in the morning for as low as £566. Try not to purchase tickets in the evening because they tend to be around £626. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Southampton to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Southampton to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Southampton to Washington, D.C. Reagan-National Airport (SOU to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southampton to Washington, D.C. Reagan-National Airport

Best price found

£1,209

Fastest flight time

15h 04m

Direct flights

None
The best one-way flight to Washington, D.C. Reagan-National Airport from Southampton in the past 72 hours is £1,209. The best return flight deal from Southampton to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is £663.
The fastest flight from Southampton to Washington, D.C. Reagan-National Airport takes 15h 04m
There are no direct flights from Southampton to Washington, D.C. Reagan-National Airport. Popular non-direct route for this connection is Southampton Eastleigh Airport - Washington, D.C. Reagan-National Airport.
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  • How far is Southampton Eastleigh to Washington, D.C. Reagan-National by plane?

    Washington, D.C. Reagan-National is 3625.1 mi away from Southampton Eastleigh. Typically, this will take 15h 04m by plane in normal conditions.

  • When did momondo last update prices for flights from Southampton Eastleigh Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from Southampton Eastleigh Airport to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Southampton Eastleigh Airport to Washington, D.C. Reagan-National Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Southampton Eastleigh Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The required travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
Essex
Alexandria
Fairfax
Manassas
Bethesda
Oxon Hill
College Park
Linthicum Heights
Gettysburg
Hanover
Cambridge
Ellicott City
Westminster
Arlington
Woodbridge
Owings Mills
Silver Spring
National Harbor

Why use momondo?

Why should I use momondo to find a flight deal from Southampton to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Southampton to Washington, D.C. for you.

Can I find flights from Southampton to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Southampton with this policy.

How can momondo help me find flights from Southampton to Washington, D.C.?

momondo helps you find the best flight between Southampton and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Southampton to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Southampton and alert you when they change.

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