IAD - SOU

$767 Find Cheap Flights from Washington Dulles Airport to Southampton

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Southampton departing on 3/4. 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
1 adult, Economy, 0 bags

KAYAK searches 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
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Everything you should know

Cheapest round-trip
$767
Delta
Wed 3/4Sun 3/8
IAD - SOU • 1 stop
Cheapest one-way
$1,234
Aer Lingus
Sat 12/20
IAD - SOU • 1 stop
Top airlines
Delta
Cheapest • from $767 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Southampton

Wed, Mar 4 - Sun, Mar 8
Delta Logo
6:05 pm - 5:25 pmIAD-SOU
18h 20m1 stop
Delta Logo
9:30 am - 5:05 pmSOU-IAD
11h 35m1 stop
$767Delta
Find Deal
Wed, Mar 4 - Sun, Mar 8
Delta Logo
12:23 pm - 5:25 pmIAD-SOU
24h 02m2 stops
Delta Logo
5:45 pm - 5:05 pmSOU-IAD
27h 20m1 stop
$772Delta
Find Deal
Wed, Apr 29 - Sun, May 3
Virgin Atlantic Logo
5:50 pm - 8:45 amIAD-SOU
9h 55m1 stop
Virgin Atlantic Logo
5:35 pm - 3:35 pmSOU-IAD
27h 00m1 stop
$780Virgin Atlantic
Find Deal
Wed, Mar 4 - Sun, Mar 8
Delta Logo
12:35 pm - 5:25 pmIAD-SOU
23h 50m2 stops
Delta Logo
5:45 pm - 12:07 amSOU-IAD
34h 22m2 stops
$782Delta
Find Deal
Wed, Apr 29 - Sun, May 3
Virgin Atlantic Logo
5:00 pm - 5:00 pmIAD-SOU
19h 00m2 stops
Virgin Atlantic Logo
5:35 pm - 3:35 pmSOU-IAD
27h 00m1 stop
$784Virgin Atlantic
Find Deal
Wed, Apr 29 - Sun, May 3
Virgin Atlantic Logo
5:50 pm - 8:45 amIAD-SOU
9h 55m1 stop
Virgin Atlantic Logo
9:20 am - 12:09 amSOU-IAD
19h 49m2 stops
$791Virgin Atlantic
Find Deal
Wed, Apr 29 - Sun, May 3
Virgin Atlantic Logo
10:05 am - 8:45 amIAD-SOU
17h 40m2 stops
Virgin Atlantic Logo
9:20 am - 7:16 pmSOU-IAD
14h 56m2 stops
$794Virgin Atlantic
Find Deal
Sun, Dec 28 - Tue, Jan 6
Delta Logo
6:05 pm - 5:25 pmIAD-SOU
18h 20m1 stop
Delta Logo
5:35 pm - 8:37 pmSOU-IAD
32h 02m2 stops
$870Delta
Find Deal
Wed, Apr 29 - Sun, May 3
Delta Logo
1:00 pm - 5:00 pmIAD-SOU
23h 00m2 stops
Delta Logo
9:20 am - 4:29 pmSOU-IAD
36h 09m2 stops
$906Delta
Find Deal
Thu, May 14 - Sat, May 23
KLM Logo
5:50 pm - 5:00 pmIAD-SOU
18h 10m1 stop
KLM Logo
5:35 pm - 3:35 pmSOU-IAD
27h 00m1 stop
$978KLM
Find Deal
Booking Insights

KAYAK's insights & trends for Dulles Intl to Southampton flights

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.

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

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Southampton were found on Delta ($767) and Virgin Atlantic ($780).

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Southampton?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Southampton.

There are 2 airlines that fly nonstop from Washington, D.C. Dulles Intl Airport to Southampton. They are Aer Lingus and Delta. The cheapest airline for this route is Aer Lingus, with the best round-trip deal found costing $677. On average, the best prices for this route can be found at Aer Lingus.

Good to know

Cheapest flight$767
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 $1,234 for a one-way ticket and $767 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?

    SkyTeam is the only airline alliance operating flights between Washington Dulles Airport and Southampton.

  • 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 $1,172 and an overall rating of 7.9, Delta is the most popular choice. Aer Lingus is also a great choice for the route, with an average price of $900 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.

Reviews of the top airlines flying 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.
7.9
DeltaOverall score based on 8006 reviews
7.3Food
7.9Entertainment
8.1Boarding
7.9Comfort
8.5Crew
Airline reviews

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

6.0 GoodDavid, Nov 2025BOS - FLL
Read more Delta reviews

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Our first flight from Venice to Dublin was delayed due to very bad weather and when we did arrive we were ushered out of the secure area to collect our luggage then told we could not Demeter as the US Customs team closed at 4pm. Thus we were stuck in Dublin for one night with hundreds of passengers scrambling for information and little help from the local staff. Many passengers were left without accommodation and told to find something on their own. We were also told we would get contacted with rebooking details and did not, requiring us to make those arrangements ourselves, in some cases at a very high out of pocket cost. Many passengers swore they would never fly on Aer Lingus again.

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

I liked the front row seats. A lot of leg room. The check-in window needs to be longer

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

Everything you need to know for your flight from Dulles Intl to Southampton

Information on your arrival and departure airports