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IAD - SOU

$524 Find cheap flights from Washington Dulles Airport to Southampton

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Southampton departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/15
Sat 6/22

Search hundreds of travel sites at once for deals on flights to Southampton

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Southampton, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Southampton, as well as popular online travel agencies
In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

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Cheap flight deals from Dulles Intl to Southampton (IAD-SOU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Southampton that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:25 pm - 7:10 pmIAD-SOU
20h 45m1 stop
9:25 am - 3:35 pmSOU-IAD
11h 10m1 stop
$726KLM
Find Deal
Thu, Oct 10 - Sun, Oct 20
6:00 pm - 7:10 pmIAD-SOU
20h 10m2 stops
9:25 am - 3:35 pmSOU-IAD
11h 10m1 stop
$732Delta
Find Deal
Thu, Oct 10 - Sun, Oct 20
4:55 pm - 7:10 pmIAD-SOU
21h 15m2 stops
5:20 pm - 3:35 pmSOU-IAD
27h 15m1 stop
$733Virgin Atlantic
Find Deal
Wed, Oct 9 - Sun, Oct 13
10:00 am - 7:25 amIAD-SOU
16h 25m2 stops
7:40 pm - 9:44 pmSOU-IAD
31h 04m2 stops
$743Virgin Atlantic
Find Deal
Wed, Oct 9 - Sun, Oct 13
5:00 pm - 8:45 amIAD-SOU
10h 45m1 stop
9:15 am - 3:30 pmSOU-IAD
11h 15m1 stop
$884British Airways
Find Deal
Sat, Nov 9 - Mon, Nov 18
10:00 pm - 3:25 pmIAD-SOU
12h 25m2 stops
9:15 am - 3:30 pmSOU-IAD
11h 15m1 stop
$900British Airways
Find Deal
Sat, Nov 9 - Mon, Nov 18
6:00 pm - 6:55 pmIAD-SOU
19h 55m2 stops
8:00 pm - 5:40 pmSOU-IAD
26h 40m3 stops
$1,239
Find Deal
Wed, Jun 12 - Wed, Jun 19
5:10 pm - 7:30 pmIAD-SOU
21h 20m1 stop
8:00 pm - 3:40 pmSOU-IAD
24h 40m1 stop
$2,609Aer Lingus
Find Deal
Wed, Jun 12 - Wed, Jun 19
4:00 pm - 7:30 pmIAD-SOU
22h 30m2 stops
8:00 pm - 4:20 pmSOU-IAD
25h 20m2 stops
$5,889
Find Deal
Thu, Oct 17 - Fri, Oct 25
5:10 pm - 7:30 pmIAD-SOU
21h 20m1 stop
9:45 am - 7:10 pmSOU-IAD
14h 25m1 stop
$7,137Aer Lingus
Find Deal
Sun, May 26 - Wed, May 29

Flights from Dulles Intl to Southampton - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Southampton to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Southampton?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to Southampton, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Southampton is March, where tickets cost $635 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $1,369 and $1,315 respectively.

Which airlines provide the cheapest flights from Washington Dulles Airport to Southampton?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Washington Dulles Airport to Southampton were found on KLM ($726) and Delta ($732). British Airways proposed the cheapest one-way flight at $524.

Good to know

Cheapest flight

$524
Flight from Washington Dulles Airport to Southampton

When to book flights from Dulles Intl to Southampton

Are your dates flexible? Find out the best times to travel from Dulles Intl to Southampton based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Southampton flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Southampton?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Southampton was $524 for a one-way ticket and $726 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Southampton?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Southampton.

  • Which airports will I be using when flying from Washington Dulles Airport to Southampton?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Southampton, also known as Southampton Eastleigh.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Southampton?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Southampton?

    oneworld, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Southampton, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Southampton, Delta or Aer Lingus?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Southampton are Delta and Aer Lingus. With an average price for the route of $885 and an overall rating of 8.0, Delta is the most popular choice. Aer Lingus is also a great choice for the route, with an average price of $883 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Southampton?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Southampton.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Southampton?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Southampton from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Southampton?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Southampton with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SOU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Southampton?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Southampton from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from Dulles Intl to Southampton

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Southampton. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Southampton? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10673 reviews
8.2Boarding
7.4Food
8.6Crew
7.9Comfort
8.0Entertainment
Airline reviews

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

6.0 GoodGary, May 2024MSP - TPA
Read more about Delta reviews

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

The plane was FREEZING SEATS UNCOMFORTABLE Otherwise smooth Thank you

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

West Jet has a horrible boarding process and the seats have no cushion.

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Short flight so not much to rate. Surprised I had to pay for a soda.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Very good need to offer better choice of food for business

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working. - Expect to be woken up more than an hour before landing when they start dinging the bell and making announcements and turning on all cabin lights to serve a snack. I would prefer they remain quiet and only serve people who want to wake up.

Better food and more space in the seats. Also when doing the web check in both times I was going in to your site the minute you open it and there is not really many seats to choose only to buy!!!

It was ok, not as good as it used to be. The Heathrow connection was a disaster - complete anarchy, unknowledgable and skimpy assistance and signage. Gate crew at next flight was great, held the flight while my wife struggled through security.

It was great! The seats were comfortable, and they fed me during the transatlantic flight, something which I have been missing out on for the past 3 years as I travel to and from school.

This flight was cancelled at the last minute. We were rebooked on another flight but a day later. We lost a day of our vacation and paid for a night in a hotel we couldn’t use. The flights we were rebooked on (both American) messed up our seating on both flights-we didn’t get the seats we had paid for. All in all, a terrible experience.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Book cheap flights from Washington, D.C. to Southampton

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Southampton found on KAYAK in the last 72 hours.
10/17Thu
1 stopBritish Airways
11h 00mIAD-SOU
$524
10/17Thu
2 stopsBritish Airways
14h 05mIAD-SOU
$527
6/10Mon
2 stopsBritish Airways
14h 57mIAD-SOU
$646
6/11Tue
2 stopsBritish Airways
17h 05mIAD-SOU
$676
6/14Fri
2 stopsBritish Airways
32h 15mIAD-SOU
$699
6/10Mon
1 stopBritish Airways
11h 00mIAD-SOU
$1,084
6/14Fri
2 stopsBritish Airways
14h 57mIAD-SOU
$1,137
6/15Sat
2 stopsBritish Airways
16h 30mIAD-SOU
$1,167
6/14Fri
1 stopAer Lingus
17h 35mIAD-SOU
$1,663
6/12Wed
1 stopBritish Airways
11h 00mIAD-SOU
$2,401

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Last minute flights from Dulles Intl to Southampton

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Southampton that are departing in the next 10 days.
5/19Sun
multi-stopBritish Airways
15h 35mIAD-SOU
5/22Wed
multi-stopBritish Airways
17h 00mSOU-IAD
$1,885
5/18Sat
multi-stopBritish Airways
15h 40mIAD-SOU
5/22Wed
multi-stopBritish Airways
17h 00mSOU-IAD
$1,935
5/19Sun
multi-stopBritish Airways
15h 35mIAD-SOU
5/22Wed
multi-stopBritish Airways
14h 25mSOU-IAD
$2,404
5/19Sun
multi-stopBritish Airways
15h 35mIAD-SOU
5/21Tue
multi-stopBritish Airways
11h 00mSOU-IAD
$2,410
5/18Sat
multi-stopBritish Airways
15h 40mIAD-SOU
5/22Wed
multi-stopBritish Airways
14h 25mSOU-IAD
$2,454
5/19Sun
multi-stopBritish Airways
11h 00mIAD-SOU
5/21Tue
multi-stopBritish Airways
11h 00mSOU-IAD
$3,264
5/19Sun
multi-stopBritish Airways
15h 35mIAD-SOU
5/21Tue
multi-stopBritish Airways
16h 50mSOU-IAD
$3,464
5/18Sat
multi-stopBritish Airways
15h 40mIAD-SOU
5/21Tue
multi-stopBritish Airways
16h 50mSOU-IAD
$3,514
5/18Sat
multi-stopBritish Airways
13h 05mIAD-SOU
5/21Tue
multi-stopBritish Airways
14h 30mSOU-IAD
$8,898
5/18Sat
multi-stopBritish Airways
13h 05mIAD-SOU
5/22Wed
multi-stopBritish Airways
17h 00mSOU-IAD
$8,948

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Washington Dulles Airport - Southampton Flights

Departure:

Washington Dulles Airport (undefined)United States

Destination:

Southampton (SOU)United Kingdom

Return flight deals:

Southampton - Washington Dulles Airport

Cabin classes: