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Cheap flights from District of Columbia to Southampton from £341

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOU
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Round-trip from

£552

One-way from

£341

Popular in

June

Cheapest in

September

Average price

£466
Delta
  • Delta
  • 1/12-7/12
  • 2 total stops
  • 44h 55m total
  • District of Columbia to Southampton
Search Deals
Delta
  • Delta
  • 26/9
  • 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 (£52 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 September 2025
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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 18 September 2025.

Mon 1/1218:05IAD - SOU
1 stop17h 55mDelta
Sun 7/1218:05SOU - IAD
1 stop27h 00mDelta
Deal found 17/9£552
Thu 4/1212:19IAD - SOU
2 stops14h 46mDelta
Sat 13/1217:30SOU - IAD
1 stop27h 35mDelta
Deal found 17/9£556
Fri 10/1017:25IAD - SOU
1 stop10h 20mDelta
Mon 13/1017:35SOU - IAD
2 stops30h 43mDelta
Deal found 17/9£560
Mon 6/1014:59DCA - SOU
2 stops12h 46mDelta
Mon 13/1017:35SOU - DCA
2 stops27h 25mDelta
Deal found 17/9£563
Wed 8/1017:25IAD - SOU
1 stop10h 20mDelta
Tue 14/1009:20SOU - IAD
1 stop11h 15mDelta
Deal found 17/9£595
Wed 8/1009:50IAD - SOU
2 stops17h 55mDelta
Mon 13/1017:35SOU - IAD
1 stop27h 00mDelta
Deal found 17/9£599
Fri 10/1017:25IAD - SOU
1 stop19h 05mDelta
Tue 14/1017:35SOU - IAD
2 stops27h 54mDelta
Deal found 17/9£602
Thu 9/1010:25DCA - SOU
2 stops17h 20mDelta
Fri 24/1009:20SOU - DCA
2 stops19h 05mDelta
Deal found 17/9£606
Wed 8/1009:50IAD - SOU
2 stops17h 55mDelta
Wed 15/1017:35SOU - IAD
2 stops27h 54mDelta
Deal found 17/9£606
Fri 5/1218:05IAD - SOU
1 stop9h 45mDelta
Tue 9/1208:40SOU - IAD
1 stop12h 25mDelta
Deal found 17/9£644
Mon 6/1017:25IAD - SOU
1 stop10h 20mDelta
Sun 12/1018:25SOU - IAD
1 stop26h 10mDelta
Deal found 17/9£675
Sat 1/1119:05IAD - SOU
1 stop9h 45mKLM
Sat 8/1117:30SOU - IAD
1 stop27h 35mKLM
Deal found 17/9£687

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 18 September 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

Thu 4/12

18:05-17:00

1 stop17h 55m

Southampton Eastleigh

Tue 9/12

17:30-16:05

1 stop27h 35m

£552

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 6/12

18:05-17:25

1 stop18h 20m

Southampton Eastleigh

Fri 12/12

17:30-16:05

1 stop27h 35m

£552

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 6/10

17:25-17:00

1 stop18h 35m

Southampton Eastleigh

Mon 13/10

17:35-15:35

1 stop27h 00m

£552

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 2/12

18:05-17:00

1 stop17h 55m

Southampton Eastleigh

Sat 13/12

17:30-16:05

1 stop27h 35m

£552

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 1/12

18:05-17:00

1 stop17h 55m

Southampton Eastleigh

Thu 11/12

18:05-16:05

1 stop27h 00m

£552

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 2/12

18:05-17:00

1 stop17h 55m

Southampton Eastleigh

Fri 12/12

08:40-16:05

1 stop12h 25m

£552

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 4/12

18:05-17:00

1 stop17h 55m

Southampton Eastleigh

Wed 10/12

08:40-16:05

1 stop12h 25m

£552

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 3/12

18:05-17:25

1 stop18h 20m

Southampton Eastleigh

Thu 11/12

18:05-16:05

1 stop27h 00m

£552

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 1/12

18:05-17:00

1 stop17h 55m

Southampton Eastleigh

Fri 12/12

17:30-16:05

1 stop27h 35m

£552

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 6/10

17:25-08:45

1 stop10h 20m

Southampton Eastleigh

Tue 14/10

09:20-15:35

1 stop11h 15m

£552

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 28 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?

    Delta can get you from District of Columbia to Southampton in just under 17h 55m. Your travel time can differ by up to . There are 3639 mi between District of Columbia and Southampton.

  • 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?

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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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