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District of Columbia

$638+ Cheap flights from Southampton (SOU) to District of Columbia

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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — IAD
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Southampton to District of Columbia

Cheapest flights from Southampton to District of Columbia
Explore the most affordable flight options available from Southampton to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1812:25 pm
SOU
-
IAD
1 stop12h 05m
Aer Lingus
Wed 3/256:05 pm
IAD
-
SOU
1 stop10h 40m
Aer Lingus
Deal found 2/1$742
This Delta deal was found by Cheapflights users on 2/1. 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 3/188:50 am
SOU
-
IAD
1 stop12h 15m
Delta
Wed 3/257:59 pm
IAD
-
SOU
2 stops17h 26m
Delta
Deal found 2/1$973
This Delta deal was found by Cheapflights users on 2/1. 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 3/188:50 am
SOU
-
DCA
2 stops18h 01m
Delta
Wed 3/2511:00 am
DCA
-
SOU
2 stops17h 20m
Delta
Deal found 2/1$979
This Delta deal was found by Cheapflights users on 2/1. 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.
Thu 3/198:50 am
SOU
-
DCA
2 stops17h 46m
Delta
Thu 3/266:14 am
DCA
-
SOU
2 stops22h 06m
Delta
Deal found 2/1$1,020
This British Airways deal was found by Cheapflights users on 2/2. 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 3/412:25 pm
SOU
-
IAD
1 stop12h 05m
British Airways
Sun 3/86:05 pm
IAD
-
SOU
1 stop10h 40m
British Airways
Deal found 2/2$1,143
This TravelUp deal was found by Cheapflights users on 2/1. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:30 am
SOU
-
IAD
1 stop15h 00m
Aer Lingus
Thu 3/266:05 pm
IAD
-
SOU
1 stop17h 30m
Aer Lingus
Deal found 2/1$1,153
This Delta deal was found by Cheapflights users on 2/1. 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.
Thu 3/198:50 am
SOU
-
IAD
1 stop12h 15m
Delta
Thu 3/267:18 am
IAD
-
SOU
2 stops21h 02m
Delta
Deal found 2/1$1,173
This Mytrip deal was found by Cheapflights users on 2/1. 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.
Wed 3/189:25 am
SOU
-
DCA
3 stops27h 30m
Multiple Airlines
Wed 3/256:00 am
DCA
-
SOU
3 stops33h 40m
Multiple Airlines
Deal found 2/1$1,378

Find flight deals from Southampton to District of Columbia

Keep the following information in mind while searching for Southampton to District of Columbia flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$742
(Expedia)

One-way from

$638
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$606
Provider with most accurate pricing for London (LON)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Washington, D.C. (WAS) flights.
Search Deals
From Southampton Eastleigh to District of Columbia
Search Deals
One-way flight from Southampton Eastleigh to District of Columbia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Southampton to District of Columbia 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 February 3, 2026.
Use the filters below to find and compare flights from Southampton to District of Columbia that are best for you.

Fly from

Southampton

Fly to

District of Columbia

Route

Depart

Return

Price

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 3/18

12:25 pm-8:30 pm

1 stop12h 05m

Washington, D.C. Dulles Intl

Wed 3/25

6:05 pm-8:45 am

1 stop10h 40m

$742

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 3/18

8:50 am-5:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Wed 3/25

7:59 pm-5:25 pm

2 stops17h 26m

$973

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Wed 3/18

8:50 am-10:51 pm

2 stops18h 01m

Washington, D.C. Reagan-National

Wed 3/25

11:00 am-8:20 am

2 stops17h 20m

$979

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Thu 3/19

8:50 am-10:36 pm

2 stops17h 46m

Washington, D.C. Reagan-National

Thu 3/26

6:14 am-8:20 am

2 stops22h 06m

$1,020

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 3/4

12:25 pm-7:30 pm

1 stop12h 05m

Washington, D.C. Dulles Intl

Sun 3/8

10:00 pm-7:40 pm

1 stop17h 40m

$1,143

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 3/19

9:30 am-8:30 pm

1 stop15h 00m

Washington, D.C. Dulles Intl

Thu 3/26

6:05 pm-3:35 pm

1 stop17h 30m

$1,153

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 3/19

8:50 am-5:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Thu 3/26

7:18 am-8:20 am

2 stops21h 02m

$1,173

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Wed 3/18

9:25 am-8:55 am

3 stops27h 30m

Washington, D.C. Reagan-National

Wed 3/25

6:00 am-7:40 pm

3 stops33h 40m

$1,378

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 5/28

9:25 am-3:45 pm

2 stops35h 20m

$638

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 5/22

9:25 am-8:35 pm

2 stops16h 10m

$651

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 24 results
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Best time to book a flight from Southampton to District of Columbia

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

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

Currently, February is the cheapest month in which you can book a flight from Southampton to District of Columbia (average of $305). Flying from Southampton to District of Columbia in June is currently the most expensive (average of $629). 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 Southampton to District of Columbia. 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 from for flights from Southampton to District of Columbia?

    Southampton Eastleigh (SOU) is the airport you will fly out of if you book a flight from Southampton to District of Columbia. It is only a 3.5 mi journey to Eastleigh (SOU) from Southampton’s city center.

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

    Airlines like Aer Lingus, Delta, and British Airways fly from Southampton to District of Columbia in about 12h 05m. The time it takes to get you to your destination can typically vary by up to 10m. Southampton and District of Columbia are separated by a distance of 3639 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Southampton to District of Columbia (average of $305). Flying from Southampton to District of Columbia in June is currently the most expensive (average of $629). 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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