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Southampton

$479+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOU
Feb 15 — Feb 221
Sun 2/15
Sun 2/22
1 adult, Economy
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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 January 16, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$682
(Kiwi.com)

One-way from

$479
(KAYAK)

Popular in

June

Cheapest in

September

Average price

$643
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.
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From District of Columbia to Southampton Eastleigh
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One-way flight from District of Columbia to Southampton Eastleigh
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Highest demand for flights based on searches. 11% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 16, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:05 pm
IAD
-
SOU
1 stop10h 40m
Aer Lingus
Sun 3/89:30 am
SOU
-
IAD
1 stop15h 00m
Aer Lingus
Deal found 1/15$682
This Delta deal was found by Cheapflights users on 1/14. 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.
Sun 2/156:05 pm
IAD
-
SOU
1 stop9h 45m
Delta
Wed 2/258:50 am
SOU
-
IAD
1 stop12h 15m
Delta
Deal found 1/14$746
This Flysmarter deal was found by Cheapflights users on 1/15. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:24 pm
IAD
-
SOU
2 stops14h 56m
KLM
Sun 3/85:45 pm
SOU
-
IAD
1 stop27h 20m
KLM
Deal found 1/15$747
This Flysmarter deal was found by Cheapflights users on 1/15. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:59 pm
DCA
-
SOU
2 stops14h 21m
KLM
Sun 3/89:30 am
SOU
-
DCA
2 stops18h 14m
KLM
Deal found 1/15$754
This Delta deal was found by Cheapflights users on 1/14. 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.
Sun 2/157:15 am
IAD
-
SOU
2 stops20h 35m
Delta
Thu 2/268:50 am
SOU
-
IAD
1 stop12h 15m
Delta
Deal found 1/14$757
This Delta deal was found by Cheapflights users on 1/14. 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.
Sat 2/146:05 pm
IAD
-
SOU
1 stop18h 10m
Delta
Mon 2/235:40 pm
SOU
-
IAD
1 stop27h 25m
Delta
Deal found 1/14$759
This KLM deal was found by Cheapflights users on 1/14. 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 8/246:10 pm
IAD
-
SOU
1 stop9h 35m
KLM
Mon 9/75:20 pm
SOU
-
IAD
1 stop27h 15m
KLM
Deal found 1/14$761
This Delta deal was found by Cheapflights users on 1/14. 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.
Sun 2/156:05 pm
IAD
-
SOU
1 stop9h 45m
Delta
Fri 2/278:50 am
SOU
-
IAD
2 stops15h 19m
Delta
Deal found 1/14$762
This Delta deal was found by Cheapflights users on 1/14. 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.
Wed 2/1812:38 pm
IAD
-
SOU
2 stops14h 47m
Delta
Fri 2/278:50 am
SOU
-
IAD
2 stops15h 19m
Delta
Deal found 1/14$767
This Delta deal was found by Cheapflights users on 1/14. 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.
Sat 2/146:05 pm
IAD
-
SOU
1 stop18h 10m
Delta
Sun 2/229:30 am
SOU
-
IAD
1 stop11h 35m
Delta
Deal found 1/14$772
This Delta deal was found by Cheapflights users on 1/14. 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.
Wed 2/1812:38 pm
IAD
-
SOU
2 stops14h 47m
Delta
Sat 2/289:25 am
SOU
-
IAD
2 stops18h 44m
Delta
Deal found 1/14$774
This KLM deal was found by Cheapflights users on 1/13. 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.
Sat 2/2810:10 am
DCA
-
SOU
2 stops17h 40m
KLM
Sat 3/79:25 am
SOU
-
DCA
2 stops17h 44m
KLM
Deal found 1/13$786

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 January 16, 2026.
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

Sun 3/1

5:05 pm-8:45 am

1 stop10h 40m

Southampton Eastleigh

Sun 3/8

9:30 am-8:30 pm

1 stop15h 00m

$691

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 2/17

6:05 pm-5:05 pm

1 stop18h 00m

Southampton Eastleigh

Mon 2/23

5:40 pm-4:05 pm

1 stop27h 25m

$746

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 2/15

6:05 pm-8:50 am

1 stop9h 45m

Southampton Eastleigh

Thu 2/26

8:50 am-4:05 pm

1 stop12h 15m

$746

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 2/17

6:05 pm-8:50 am

1 stop9h 45m

Southampton Eastleigh

Wed 2/25

8:50 am-4:05 pm

1 stop12h 15m

$746

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 2/16

6:05 pm-8:50 am

1 stop9h 45m

Southampton Eastleigh

Wed 2/25

5:35 pm-4:05 pm

1 stop27h 30m

$746

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 2/15

6:05 pm-8:50 am

1 stop9h 45m

Southampton Eastleigh

Tue 2/24

8:50 am-4:05 pm

1 stop12h 15m

$746

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 2/17

6:05 pm-8:50 am

1 stop9h 45m

Southampton Eastleigh

Tue 2/24

5:35 pm-4:05 pm

1 stop27h 30m

$746

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 3/1

12:24 pm-8:20 am

2 stops14h 56m

Southampton Eastleigh

Sun 3/8

5:45 pm-5:05 pm

1 stop27h 20m

$747

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sun 3/1

12:59 pm-8:20 am

2 stops14h 21m

Southampton Eastleigh

Sun 3/8

9:30 am-11:44 pm

2 stops18h 14m

$754

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 2/15

5:25 pm-5:05 pm

2 stops18h 40m

Southampton Eastleigh

Wed 2/25

5:35 pm-4:05 pm

1 stop27h 30m

$757

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 29 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 $711). 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, Delta, and KLM can get you from District of Columbia to Southampton in just under 10h 40m. Your travel time can differ by up to 7h 20m. 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 $711). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$766Average$1,079FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$785Average$1,172FlexibilityNo cancel feeOn-timeN/A

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