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Cheap flights from District of Columbia to Southampton from £378

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 18/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOU
16 Apr — 23 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from District of Columbia to Southampton

Enter your travel dates to find the best prices.

Cheapest flights from District of Columbia to Southampton
Explore the most affordable flight options available from District of Columbia to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 March 2026.

Mon 24/817:15
IAD
-
SOU
1 stop10h 25m
Multiple Airlines
Mon 7/919:20
SOU
-
IAD
2 stops24h 50m
Multiple Airlines
Deal found 16/3£675
Mon 24/818:10
IAD
-
SOU
1 stop9h 35m
KLM
Mon 7/917:20
SOU
-
IAD
1 stop27h 15m
KLM
Deal found 13/3£684
Thu 2/417:40
IAD
-
SOU
1 stop9h 55m
Delta
Wed 8/409:05
SOU
-
IAD
1 stop11h 30m
Delta
Deal found 12/3£685
Sun 23/817:15
IAD
-
SOU
1 stop10h 25m
Multiple Airlines
Mon 7/919:20
SOU
-
IAD
2 stops24h 50m
Multiple Airlines
Deal found 16/3£687
Wed 29/417:15
IAD
-
SOU
1 stop10h 25m
Aer Lingus
Wed 6/509:20
SOU
-
IAD
1 stop15h 05m
Aer Lingus
Deal found 15/3£687
Tue 14/420:30
IAD
-
SOU
2 stops19h 15m
Multiple Airlines
Tue 21/418:10
SOU
-
IAD
3 stops31h 19m
Multiple Airlines
Deal found 17/3£691
Sat 4/417:40
IAD
-
SOU
1 stop18h 10m
Delta
Fri 10/417:20
SOU
-
IAD
2 stops28h 29m
Delta
Deal found 12/3£692
Fri 3/406:00
IAD
-
SOU
2 stops29h 50m
Delta
Wed 8/409:05
SOU
-
IAD
1 stop11h 30m
Delta
Deal found 12/3£696
Sat 29/811:00
DCA
-
SOU
2 stops16h 45m
Delta
Mon 7/909:05
SOU
-
DCA
2 stops19h 07m
Delta
Deal found 12/3£778
Wed 29/412:59
DCA
-
SOU
2 stops14h 36m
KLM
Wed 6/509:05
SOU
-
DCA
2 stops16h 28m
KLM
Deal found 15/3£796
Tue 28/412:59
DCA
-
SOU
2 stops14h 36m
KLM
Tue 5/509:05
SOU
-
DCA
2 stops16h 28m
KLM
Deal found 14/3£811
Wed 12/812:59
DCA
-
SOU
2 stops14h 46m
KLM
Wed 26/809:15
SOU
-
DCA
2 stops13h 56m
KLM
Deal found 16/3£812

Find flight deals from District of Columbia to Southampton

Keep the following information in mind while searching for District of Columbia to Southampton flight deals. Data was last updated 17 March 2026.

Round-trip from

£675

One-way from

£378

Popular in

June

Cheapest in

September

Average price

£528
24/8-7/9
  • 24/8-7/9
  • 3 total stops
  • 35h 15m total
  • District of Columbia to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 18/4
  • 1 total stop
  • 10h 20m total
  • District of Columbia to Southampton
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 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 District of Columbia 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 858,174 searches. Data last updated 17 March 2026.
Use the filters below to find and compare flights from District of Columbia to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 2/4

17:40-08:35

1 stop9h 55m

Southampton Eastleigh

Fri 10/4

17:20-16:49

2 stops28h 29m

£692

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 3/4

06:00-16:50

2 stops29h 50m

Southampton Eastleigh

Wed 8/4

09:05-15:35

1 stop11h 30m

£696

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 5/4

07:20-08:35

2 stops20h 15m

Southampton Eastleigh

Sun 12/4

09:15-16:15

2 stops36h 00m

£745

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sat 29/8

11:00-08:45

2 stops16h 45m

Southampton Eastleigh

Mon 7/9

09:05-23:12

2 stops19h 07m

£778
Fastest return journey

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 20/4

18:10-08:35

1 stop9h 25m

Southampton Eastleigh

Tue 5/5

09:05-15:35

1 stop11h 30m

£800

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 21/4

15:00-16:50

2 stops20h 50m

Southampton Eastleigh

Mon 4/5

17:20-15:35

1 stop27h 15m

£804

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 19/4

19:19-08:35

2 stops32h 16m

Southampton Eastleigh

Thu 7/5

17:20-15:35

1 stop27h 15m

£804

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Tue 28/4

12:59-08:35

2 stops14h 36m

Southampton Eastleigh

Tue 5/5

09:05-20:33

2 stops16h 28m

£811

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Tue 28/4

19:56-16:50

2 stops15h 54m

Southampton Eastleigh

Tue 5/5

09:05-21:37

2 stops17h 32m

£811

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Wed 12/8

12:59-08:45

2 stops14h 46m

Southampton Eastleigh

Wed 26/8

09:15-18:11

2 stops13h 56m

£812

Flights are sorted by cheapest return flights first.

Deals found on 17/3

Showing 1-10 of 31 resultsSorted by cheapest first
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Best time to book a flight from District of Columbia to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from District of Columbia 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 District of Columbia to Southampton

What is the cheapest month to book a flight from District of Columbia to Southampton?

Currently, March is the cheapest month in which you can book a flight from District of Columbia to Southampton (average of £23). Flying from District of Columbia to Southampton in June is currently the most expensive (average of £526). 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 District of Columbia 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 District of Columbia?

    For a flight from District of Columbia to Southampton, you will be flying into Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city.

  • How long is the flight from District of Columbia to Southampton?

    Delta and KLM can get you from District of Columbia to Southampton in just under 9h 35m. Your travel time can differ by up to 30m. There are 3639 mi between District of Columbia and Southampton. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from District of Columbia to Southampton that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Southampton?

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

  • Can I find deals for business class flights from District of Columbia to Southampton?

    Yes. Cheapflights offers flight deals from District of Columbia 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 District of Columbia to Southampton?

    Currently, March is the cheapest month in which you can book a flight from District of Columbia to Southampton (average of £23). Flying from District of Columbia to Southampton in June is currently the most expensive (average of £526). 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 District of Columbia to Southampton

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from District of Columbia to Southampton?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from District of Columbia to Southampton. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from District of Columbia to Southampton?

Cheapflights helps you find that perfect flight to Southampton from District of Columbia by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from District of Columbia to Southampton with no change fees?

Certainly. Search results for flights to Southampton from District of Columbia shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from District of Columbia to Southampton become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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