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Southampton

$468+ Cheap flights from District of Columbia to Southampton (SOU)

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This KLM deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:05 pmIAD - SOU
1 stop17h 55mKLM
Sun 1/115:45 pmSOU - IAD
2 stops30h 24mKLM
Deal found 12/16$766
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:25 pmDCA - SOU
2 stops21h 35mDelta
Sun 1/115:45 pmSOU - DCA
2 stops33h 15mDelta
Deal found 12/16$775
This Booking.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:05 pmIAD - SOU
1 stop17h 55mMultiple Airlines
Sun 1/115:45 pmSOU - IAD
1 stop27h 20mMultiple Airlines
Deal found 12/16$933
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:55 pmIAD - SOU
2 stops19h 05mDelta
Sun 1/115:45 pmSOU - IAD
2 stops30h 24mDelta
Deal found 12/16$999
This Mytrip deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amDCA - SOU
3 stops27h 10mMultiple Airlines
Sun 1/118:10 pmSOU - DCA
2 stops28h 35mMultiple Airlines
Deal found 12/16$1,584
This British Airways deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:00 pmIAD - SOU
1 stop13h 35mBritish Airways
Tue 12/307:55 pmSOU - IAD
2 stops29h 00mBritish Airways
Deal found 12/15$4,072
This British Airways deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:05 pmIAD - SOU
1 stop10h 40mBritish Airways
Tue 12/237:55 pmSOU - IAD
2 stops24h 40mBritish Airways
Deal found 12/16$4,076

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 December 18, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$766
(KLM)

One-way from

$468
(Delta)

Popular in

December

Cheapest in

September

Average price

$978
Provider with most accurate pricing for Washington, D.C. (WAS)-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London (LON) flights.
Search Deals
From District of Columbia to Southampton Eastleigh
Search Deals
One-way flight from District of Columbia to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 18, 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

Mon 12/29

6:05 pm-5:00 pm

1 stop17h 55m

Southampton Eastleigh

Sun 1/11

5:45 pm-7:09 pm

2 stops30h 24m

$766

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 1/31

5:27 pm-5:15 pm

2 stops18h 48m

Southampton Eastleigh

Sat 2/7

9:25 am-4:05 pm

1 stop11h 40m

$772

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 1/30

12:32 pm-8:45 am

2 stops15h 13m

Southampton Eastleigh

Fri 2/6

5:35 pm-4:05 pm

1 stop27h 30m

$772

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 1/29

12:32 pm-8:25 am

2 stops14h 53m

Southampton Eastleigh

Thu 2/5

9:00 am-4:05 pm

1 stop12h 05m

$772

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Mon 12/29

2:25 pm-5:00 pm

2 stops21h 35m

Southampton Eastleigh

Sun 1/11

5:45 pm-10:00 pm

2 stops33h 15m

$775

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 1/29

7:40 pm-5:10 pm

2 stops16h 30m

Southampton Eastleigh

Thu 2/5

8:10 pm-9:00 pm

3 stops29h 50m

$788

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 1/30

11:35 am-2:50 pm

3 stops22h 15m

Southampton Eastleigh

Fri 2/6

7:50 pm-3:15 pm

2 stops24h 25m

$842

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 5/17

5:40 pm-8:35 am

1 stop9h 55m

Southampton Eastleigh

Sat 5/30

9:15 am-3:35 pm

1 stop11h 20m

$918

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 5/18

6:10 pm-8:35 am

1 stop9h 25m

Southampton Eastleigh

Sun 5/31

9:15 am-3:35 pm

1 stop11h 20m

$918

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Mon 12/29

6:00 am-2:10 pm

3 stops27h 10m

Southampton Eastleigh

Sun 1/11

8:10 pm-7:45 pm

2 stops28h 35m

$1,584

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 19 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 round-trip 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 $31). Flying from District of Columbia to Southampton in June is currently the most expensive (average of $725). 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.

What is the cheapest time of day to fly from DC to SOU?

Find hourly flight availability from District of Columbia to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from District of Columbia to Southampton at noon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the morning.

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?

    KLM and Delta can get you from District of Columbia to Southampton in just under 17h 55m. Your travel time can differ by up to 53m. There are 3639 mi between District of Columbia and Southampton. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 vacation 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 $31). Flying from District of Columbia to Southampton in June is currently the most expensive (average of $725). 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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Top 2 airlines flying from District of Columbia to Southampton

Discover the top 2 airlines that operate flights from District of Columbia to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$677Average$900FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$785Average$1,119FlexibilityNo cancel feeOn-timeN/A

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