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Cheap flights from Southampton to District of Columbia from £436

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — IAD
12 Jun — 19 Jun1
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 13 May 2026.

Thu 29/1009:20
SOU
-
IAD
1 stop11h 15m
Aer Lingus
Thu 5/1121:00
IAD
-
SOU
1 stop17h 30m
Aer Lingus
Deal found 12/5£625
Tue 9/609:20
SOU
-
DCA
3 stops29h 59m
Multiple Airlines
Mon 15/606:00
DCA
-
SOU
3 stops29h 50m
Multiple Airlines
Deal found 12/5£681
Thu 29/1009:20
SOU
-
IAD
1 stop11h 15m
Multiple Airlines
Thu 5/1121:45
IAD
-
SOU
2 stops16h 45m
Multiple Airlines
Deal found 11/5£718
Tue 9/609:20
SOU
-
IAD
3 stops34h 43m
Multiple Airlines
Mon 15/615:45
IAD
-
SOU
3 stops22h 45m
Multiple Airlines
Deal found 11/5£728
Mon 8/617:20
SOU
-
DCA
3 stops34h 08m
Multiple Airlines
Sun 14/606:00
DCA
-
SOU
3 stops32h 30m
Multiple Airlines
Deal found 10/5£745
Mon 8/609:20
SOU
-
IAD
1 stop14h 55m
Multiple Airlines
Sun 14/617:15
IAD
-
SOU
1 stop10h 25m
Multiple Airlines
Deal found 10/5£761
Sun 24/509:20
SOU
-
DCA
2 stops13h 27m
Multiple Airlines
Mon 7/914:00
DCA
-
SOU
2 stops13h 40m
Multiple Airlines
Deal found 11/5£946

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 13 May 2026.

Round-trip from

£625

One-way from

£436

Popular in

July

Cheapest in

February

Average price

£511
Aer Lingus
  • Aer Lingus
  • 29/10-5/11
  • 2 total stops
  • 28h 45m total
  • Southampton to District of Columbia
Search Deals
22/8
  • 22/8
  • 3 total stops
  • 44h 56m 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 May 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 13 May 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

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Tue 9/6

09:20-10:19

3 stops29h 59m

Washington, D.C. Reagan-National

Mon 15/6

06:00-16:50

3 stops29h 50m

£681

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 29/10

09:20-20:30

1 stop15h 10m

Washington, D.C. Dulles Intl

Thu 5/11

18:20-16:35

2 stops17h 15m

£720

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Mon 8/6

17:20-22:28

3 stops34h 08m

Washington, D.C. Reagan-National

Sun 14/6

06:00-19:30

3 stops32h 30m

£745

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 8/6

19:20-15:10

2 stops24h 50m

Washington, D.C. Dulles Intl

Sun 14/6

08:18-19:30

3 stops30h 12m

£765

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 31/8

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Thu 10/9

20:40-19:30

1 stop17h 50m

£809

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Tue 9/6

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Mon 15/6

22:25-08:05

2 stops28h 40m

£810

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 29/10

08:50-23:02

2 stops18h 12m

Washington, D.C. Dulles Intl

Thu 5/11

12:30-08:05

2 stops14h 35m

£824

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

£826

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 16/9

08:55-20:20

2 stops16h 25m

Washington, D.C. Dulles Intl

Wed 30/9

17:45-14:45

2 stops16h 00m

£868
Fastest return journey

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sun 24/5

09:20-17:47

2 stops13h 27m

Washington, D.C. Reagan-National

Mon 7/9

14:00-08:40

2 stops13h 40m

£946

Flights are sorted by cheapest return flights first.

Deals found on 9/5

Showing 1-10 of 23 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 13 May 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
1,556 reviews
Check prices

Boarding

7.4

Food

6.6

Entertainment

7.0

Crew

8.1

Comfort

7.2

Overall

7.3

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
1,556 reviews
Aer Lingus
7.3
Good
1,556 reviews
Check prices

Boarding

7.4

Food

6.6

Entertainment

7.0

Crew

8.1

Comfort

7.2

Overall

7.3

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 25m. Fly via British Airways to get the fastest option. The distance from Southampton to District of Columbia is about 3639 mi.

  • 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 13 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£448Average£587FlexibilityNo 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?

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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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