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Cheap flights from District of Columbia to Southampton from £304

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOU
31 Aug — 7 Sep1
1 adult

Cheap 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 26 August 2025.

Round-trip from

£508

One-way from

£304

Popular in

June

Cheapest in

January

Average price

£509
Aer Lingus
  • Aer Lingus
  • 7/10-14/10
  • 2 total stops
  • 25h 05m total
  • District of Columbia to Southampton
Search Deals
11/9
  • 11/9
  • 3 total stops
  • 32h 35m total
  • District of Columbia to Southampton
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. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from District of Columbia to Southampton

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 26 August 2025.

Tue 7/1017:20IAD - SOU
1 stop9h 45mAer Lingus
Tue 14/1009:10SOU - IAD
1 stop15h 20mAer Lingus
Deal found 24/8£508
Sat 8/1117:05IAD - SOU
1 stop10h 40mAer Lingus
Sat 15/1109:30SOU - IAD
1 stop15h 00mAer Lingus
Deal found 24/8£557
Thu 9/1017:20IAD - SOU
1 stop21h 10mAer Lingus
Thu 16/1009:40SOU - IAD
1 stop14h 15mAer Lingus
Deal found 25/8£592
Wed 10/917:25IAD - SOU
1 stop10h 20mKLM
Wed 24/909:20SOU - IAD
1 stop11h 15mKLM
Deal found 25/8£603
Thu 9/1017:25IAD - SOU
1 stop18h 35mVirgin Atlantic
Thu 16/1009:20SOU - IAD
2 stops19h 52mVirgin Atlantic
Deal found 25/8£610
Sat 8/1118:00IAD - SOU
2 stops20h 40mMultiple Airlines
Sat 15/1109:30SOU - IAD
2 stops36h 10mMultiple Airlines
Deal found 24/8£613
Tue 30/913:20DCA - SOU
2 stops14h 25mKLM
Wed 15/1009:20SOU - DCA
2 stops14h 39mKLM
Deal found 25/8£614
Tue 30/909:35IAD - SOU
3 stops28h 55mMultiple Airlines
Wed 15/1020:00SOU - IAD
2 stops24h 20mMultiple Airlines
Deal found 25/8£618
Thu 11/917:25IAD - SOU
1 stop10h 20mKLM
Mon 15/917:35SOU - IAD
1 stop27h 00mKLM
Deal found 24/8£641
Tue 7/1022:20IAD - SOU
3 stops29h 20mMultiple Airlines
Tue 14/1009:10SOU - IAD
2 stops35h 10mMultiple Airlines
Deal found 24/8£669
Sat 20/912:08IAD - SOU
2 stops15h 37mDelta
Sat 27/909:20SOU - IAD
1 stop11h 15mDelta
Deal found 24/8£689
Sat 20/914:00DCA - SOU
2 stops13h 45mDelta
Sat 27/909:20SOU - DCA
2 stops18h 37mDelta
Deal found 24/8£733

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 26 August 2025.
Use the filters below to find and compare flights from District of Columbia to Southampton that are best for you.

Fly from

District of Columbia

Fly to

Southampton

Route

Depart

Return

Price

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 7/10

17:20-08:05

1 stop9h 45m

Southampton Eastleigh

Tue 14/10

09:10-19:30

1 stop15h 20m

£508

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 8/11

17:05-08:45

1 stop10h 40m

Southampton Eastleigh

Sat 15/11

09:30-19:30

1 stop15h 00m

£557

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 9/10

17:20-19:30

1 stop21h 10m

Southampton Eastleigh

Thu 16/10

09:40-18:55

1 stop14h 15m

£592

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 20/9

17:25-08:45

1 stop10h 20m

Southampton Eastleigh

Sat 27/9

18:05-15:35

1 stop26h 30m

£603

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 10/9

17:25-08:45

1 stop10h 20m

Southampton Eastleigh

Wed 24/9

09:20-15:35

1 stop11h 15m

£603

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 30/9

17:25-17:00

1 stop18h 35m

Southampton Eastleigh

Wed 15/10

09:20-15:35

1 stop11h 15m

£603

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 8/11

18:05-08:50

1 stop9h 45m

Southampton Eastleigh

Sat 15/11

17:30-16:05

1 stop27h 35m

£603

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 7/11

18:05-08:50

1 stop9h 45m

Southampton Eastleigh

Fri 14/11

17:30-16:05

1 stop27h 35m

£603

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Tue 30/9

13:20-08:45

2 stops14h 25m

Southampton Eastleigh

Wed 15/10

09:20-18:59

2 stops14h 39m

£614

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Thu 9/10

13:15-08:45

2 stops14h 30m

Southampton Eastleigh

Thu 16/10

09:20-18:59

2 stops14h 39m

£614

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 22 results
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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, September is the cheapest month in which you can book a flight from District of Columbia to Southampton (average of £203). Flying from District of Columbia to Southampton in November is currently the most expensive (average of £262). 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?

    Aer Lingus, KLM, and Delta can get you from District of Columbia to Southampton in just under 9h 45m. Your travel time can differ by up to 4h. 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, September is the cheapest month in which you can book a flight from District of Columbia to Southampton (average of £203). Flying from District of Columbia to Southampton in November is currently the most expensive (average of £262). 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

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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.

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