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Cheap flights from Southampton to District of Columbia from £430

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 23/11. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — IAD
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to District of Columbia

Enter your travel dates to find the best prices.

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 11 June 2026.

Wed 8/709:20
SOU
-
IAD
1 stop11h 25m
British Airways
Fri 24/717:15
IAD
-
SOU
1 stop18h 35m
British Airways
Deal found 8/6£507
Thu 29/1009:20
SOU
-
IAD
1 stop11h 15m
British Airways
Thu 5/1117:05
IAD
-
SOU
1 stop10h 35m
British Airways
Deal found 8/6£509
Sun 5/720:00
SOU
-
IAD
1 stop28h 15m
British Airways
Sun 12/717:15
IAD
-
SOU
1 stop18h 35m
British Airways
Deal found 7/6£517
Fri 23/1020:00
SOU
-
IAD
1 stop24h 45m
British Airways
Sun 1/1121:00
IAD
-
SOU
1 stop17h 30m
British Airways
Deal found 6/6£522
Wed 5/809:20
SOU
-
IAD
1 stop15h 05m
British Airways
Wed 12/817:15
IAD
-
SOU
1 stop10h 25m
British Airways
Deal found 8/6£523
Sun 23/820:00
SOU
-
IAD
1 stop28h 25m
British Airways
Mon 31/817:15
IAD
-
SOU
1 stop10h 25m
British Airways
Deal found 6/6£529
Fri 21/809:20
SOU
-
IAD
1 stop15h 05m
British Airways
Thu 3/917:15
IAD
-
SOU
1 stop10h 25m
British Airways
Deal found 6/6£544
Sat 24/1017:20
SOU
-
IAD
1 stop32h 10m
British Airways
Sun 1/1117:05
IAD
-
SOU
1 stop10h 35m
British Airways
Deal found 6/6£548
Fri 21/809:20
SOU
-
IAD
1 stop15h 05m
British Airways
Sat 29/817:15
IAD
-
SOU
1 stop10h 20m
British Airways
Deal found 6/6£550
Wed 8/709:15
SOU
-
DCA
2 stops17h 47m
KLM
Fri 24/712:55
DCA
-
SOU
2 stops14h 50m
KLM
Deal found 7/6£661
Sun 5/717:30
SOU
-
DCA
2 stops28h 29m
Multiple Airlines
Sun 12/720:50
DCA
-
SOU
2 stops54h 55m
Multiple Airlines
Deal found 7/6£718
Thu 23/709:15
SOU
-
DCA
2 stops19h 37m
Delta
Thu 30/716:00
DCA
-
SOU
2 stops20h 35m
Delta
Deal found 8/6£729

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 11 June 2026.

Round-trip from

£507

One-way from

£430

Popular in

June

Cheapest in

February

Average price

£593
British Airways
  • British Airways
  • 8/7-24/7
  • 2 total stops
  • 30h 00m total
  • Southampton to District of Columbia
Search Deals
British Airways
  • British Airways
  • 23/11
  • 1 total stop
  • 15h 10m total
  • Southampton to District of Columbia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 11 June 2026.
Use the filters below to find and compare flights from Southampton to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 29/10

09:20-16:35

1 stop11h 15m

Washington, D.C. Dulles Intl

Thu 5/11

17:05-08:40

1 stop10h 35m

£509

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 5/8

09:20-19:25

1 stop15h 05m

Washington, D.C. Dulles Intl

Wed 12/8

17:15-08:40

1 stop10h 25m

£523

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Tue 28/7

09:15-15:45

1 stop11h 30m

Washington, D.C. Dulles Intl

Fri 7/8

20:55-16:50

1 stop14h 55m

£523

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 22/7

20:00-15:45

1 stop24h 45m

Washington, D.C. Dulles Intl

Tue 28/7

17:15-08:05

1 stop9h 50m

£560

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 29/10

17:30-16:55

1 stop27h 25m

Washington, D.C. Dulles Intl

Thu 5/11

13:00-08:10

2 stops14h 10m

£566

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 29/10

08:40-23:02

2 stops18h 22m

Washington, D.C. Dulles Intl

Thu 5/11

19:59-17:00

2 stops16h 01m

£569

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 21/8

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Tue 1/9

22:25-19:00

2 stops15h 35m

£570

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Sat 22/8

19:40-17:25

2 stops26h 45m

Washington, D.C. Dulles Intl

Thu 3/9

17:15-08:40

1 stop10h 25m

£583

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 28/8

19:30-19:40

2 stops29h 10m

Washington, D.C. Dulles Intl

Tue 1/9

21:05-16:50

1 stop14h 45m

£586

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Wed 8/7

09:15-22:02

2 stops17h 47m

Washington, D.C. Reagan-National

Fri 24/7

12:55-08:45

2 stops14h 50m

£661

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 25 resultsSorted by cheapest first
1
2
3

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 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 Southampton to District of Columbia
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to District of Columbia. Reviews last updated 11 June 2026.
Get a feel of what it's like to fly with Aer Lingus from Southampton to District of Columbia by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,601 reviews
Check prices

Entertainment

7.0

Boarding

7.4

Food

6.7

Overall

7.3

Comfort

7.2

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,601 reviews
Aer Lingus
7.3
Good
1,601 reviews
Check prices

Entertainment

7.0

Boarding

7.4

Food

6.7

Overall

7.3

Comfort

7.2

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

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?

    For a flight from Southampton to District of Columbia, you will be flying from Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city.

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

    There are many flights that can get you from Southampton to District of Columbia in 11h 15m. Fly via British Airways, KLM, or Delta to get the fastest option. The distance from Southampton to District of Columbia is about 3639 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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 holiday 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.

See more FAQs

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Alternative routes for Southampton to District of Columbia

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Top airline flying from Southampton to District of Columbia

Discover the top airline that operate flights from Southampton to District of Columbia. 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 858,174 searches. Data last updated 11 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£453Average£594FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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How does Cheapflights help users find flights from Southampton to District of Columbia?

When you search for this flight from Southampton to District of Columbia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Southampton to District of Columbia?

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Can Cheapflights find flights from Southampton to District of Columbia with no change fees?

Yes! Cheapflights helps users easily find flights from Southampton to District of Columbia with no change fees.

Can Cheapflights notify me if prices for flights from Southampton to District of Columbia become cheaper?

Yes, Cheapflights offers price alerts on Southampton to District of Columbia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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