WAS - SOU

$762 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Southampton departing on 11/8. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$762
KLM
Sat 11/8Sat 11/15
IAD - SOU • 1 stop
Cheapest one-way
Multiple Airlines
Wed 10/22
WAS - SOU • multi-stop
Top airlines
KLM
Cheapest • from $762 (round-trip)
KLM
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Southampton!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Southampton (WAS-SOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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 Washington, D.C. to Southampton

Sat, Nov 8 - Sat, Nov 15
KLM Logo
6:05 pm - 8:50 amIAD-SOU
9h 45m1 stop
KLM Logo
9:25 am - 4:05 pmSOU-IAD
11h 40m1 stop
$762KLM
Find Deal
Sat, Nov 8 - Sat, Nov 15
Delta Logo
12:09 pm - 8:50 amIAD-SOU
15h 41m2 stops
Delta Logo
9:25 am - 4:05 pmSOU-IAD
11h 40m1 stop
$767Delta
Find Deal
Sat, Nov 8 - Sat, Nov 15
Delta Logo
12:00 pm - 8:50 amBWI-SOU
15h 50m2 stops
Delta Logo
9:25 am - 11:00 pmSOU-BWI
18h 35m2 stops
$777Delta
Find Deal
Sat, Nov 8 - Sat, Nov 15
KLM Logo
1:45 pm - 8:50 amDCA-SOU
14h 05m2 stops
KLM Logo
9:25 am - 9:43 pmSOU-DCA
17h 18m2 stops
$777KLM
Find Deal
Sat, Nov 8 - Sat, Nov 15
Delta Logo
12:27 pm - 8:50 amIAD-SOU
15h 23m2 stops
Delta Logo
9:25 am - 11:03 pmSOU-IAD
18h 38m2 stops
$777Delta
Find Deal
Fri, Dec 5 - Fri, Dec 12
Multiple Airlines Logo
11:40 am - 2:50 pmIAD-SOU
22h 10m3 stops
Multiple Airlines Logo
7:50 pm - 3:15 pmSOU-IAD
24h 25m2 stops
$824Multiple Airlines
Find Deal
Fri, Dec 5 - Fri, Dec 12
Multiple Airlines Logo
11:40 am - 2:50 pmIAD-SOU
22h 10m3 stops
Multiple Airlines Logo
7:50 pm - 8:26 pmSOU-IAD
29h 36m3 stops
$1,027Multiple Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
Aer Lingus Logo
5:05 pm - 8:45 amIAD-SOU
10h 40m1 stop
Aer Lingus Logo
9:30 am - 7:30 pmSOU-IAD
15h 00m1 stop
$1,167Aer Lingus
Find Deal
Sat, Nov 8 - Sat, Nov 15
British Airways Logo
5:05 pm - 8:45 amIAD-SOU
10h 40m1 stop
British Airways Logo
3:45 pm - 7:55 pmSOU-IAD
33h 10m2 stops
$1,421British Airways
Find Deal
Mon, Feb 9 - Thu, Feb 12
British Airways Logo
5:05 pm - 11:55 amIAD-SOU
13h 50m1 stop
British Airways Logo
8:30 pm - 3:35 pmSOU-IAD
24h 05m2 stops
$2,101British Airways
Find Deal
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Southampton flights

Get data-powered insights and trends into flights from Washington, D.C. 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, D.C. 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, D.C. to Southampton were found on KLM ($762) and Delta ($767).

Which airlines fly non-stop between Washington, D.C. 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. to Southampton.

There are 2 airlines that fly nonstop from Washington, D.C. 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$762
Flight from Washington Dulles Airport to Southampton

When to book flights from Washington, D.C. to Southampton

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 flights from Washington, D.C. to Southampton

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Southampton was $762 for a round-trip ticket.

  • Do I need a passport to fly between Washington, D.C. and Southampton?

    Yes

  • Which airports will I be using when flying from Washington, D.C. to Southampton?

    On your way to Southampton, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at Southampton Eastleigh.

  • Which aircraft models fly most regularly from Washington, D.C. to Southampton?

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

  • Which airline alliances offer flights from Washington, D.C. to Southampton?

    SkyTeam is the only airline alliance operating flights between Washington, D.C. and Southampton.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Southampton are KLM and Aer Lingus. With an average price for the route of $1,233 and an overall rating of 7.7, KLM is the most popular choice. Aer Lingus is also a great choice for the route, with an average price of $858 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Southampton.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Southampton from Washington, D.C. 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, D.C. 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, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. 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 Washington, D.C. 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 Washington, D.C. 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.
7.7
KLMOverall score based on 1404 reviews
7.1Entertainment
7.6Comfort
7.8Boarding
8.4Crew
7.3Food
Airline reviews

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

2.0 MediocreAbisola, Oct 2025CDG - AMS
Read more KLM reviews

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

Aer Lingus unfortunately seems more like a budget airline than a national carrier. The plane was fine. The crew seemed a bit hurried and without that Irish charm (which may be an inappropriate stereotype and maybe not to be expected on a long international flight but other carriers seem to pull it off). My biggest complaint was that my gold status on Alaska Airlines--which gets me into lounges with BA and other partner airlines--was not accepted at lounges in Rome or Dublin, despite Aer Lingus on paper anyway partnering with Alaska. But the flight itself through Kayak was several hundred dollars cheaper than others, so overall, the right decision. Also, be aware that US customs on flights from Dublin occurs in Dublin (like Canadian airports) so if you have a connection or are just departing from Ireland, give yourself enough time (up to 30 minutes) to negotiate all of the lines. Still better than going through customs in the US after a 10 hour flight.

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

There was a mixup with our tickets. They said they did not receive payment for them but yet we had seat assignments. We had to purchase last-minute tickets which cost us three times as much. that’s why they got a rated of a one.

I was pleasantly surprised and enjoyed the services of the airline since flying is not my favorite thing. My goal was to be with my brother's family in Manchester after his death. All staff was helpful, the food appreciated since I selected an overnight flight. Every aspect of the experience was comforting. I plan to return to Manchester in order to attend my brother's funeral in October and hope that I am able to find a reasonable priced flight. Thank you

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.

Everything you need to know for your flight from Washington, D.C. to Southampton

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.