IAD - SOU

$340 Find Cheap Flights from Washington Dulles Airport to Southampton - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$901
Typical prices: $1,079-$1,458
Aer Lingus
Sun 1/7Wed 1/10
IAD - SOU • 1 stop
Cheapest one-way
$340
Typical prices: $576-$712
Multiple Airlines
Fri 11/9
IAD - SOU • 2 stops
When to travel
March
Cheapest • 18% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dublin (DUB)
Cheapest • Avg $1,185 (round-trip)
Amsterdam Schiphol (AMS)
Shortest trip • 10h 58m (one-way)
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Flight Deals

Cheap Flights from Dulles Intl to Southampton (IAD-SOU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Southampton

Thu, Jan 7 - Sun, Jan 10
Multiple Airlines Logo
5:15 pm - 8:50 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 35m1 stop Dublin
Multiple Airlines Logo
4:05 pm - 4:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
29h 15m2 stops Alicante Madrid Barajas
$901Multiple Airlines
Wed, Nov 25 - Wed, Dec 2
Aer Lingus Logo
8:50 pm - 11:55 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 05m1 stop Dublin
Aer Lingus Logo
9:20 am - 7:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
15h 00m1 stop Dublin
$921Aer Lingus
Wed, Nov 25 - Wed, Dec 2
Multiple Airlines Logo
8:50 pm - 7:30 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
17h 40m1 stop Dublin
Multiple Airlines Logo
9:15 am - 7:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
39h 05m2 stops Glasgow Intl Dublin
$946Multiple Airlines
Wed, Nov 25 - Mon, Nov 30
Multiple Airlines Logo
8:50 pm - 7:30 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
17h 40m1 stop Dublin
Multiple Airlines Logo
7:25 pm - 7:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
28h 55m2 stops Barcelona-El Prat Dublin
$954Multiple Airlines
Wed, Nov 25 - Mon, Nov 30
Multiple Airlines Logo
9:55 am - 7:30 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
28h 35m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
12:25 pm - 5:00 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
33h 35m2 stops Dublin Zurich
$987Multiple Airlines
Sat, Nov 28 - Sat, Dec 5
Aer Lingus Logo
5:15 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 30m1 stop Dublin
Aer Lingus Logo
9:20 am - 3:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
$1,004Aer Lingus
Thu, Jan 7 - Sun, Jan 10
Aer Lingus Logo
5:15 pm - 8:50 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 35m1 stop Dublin
Aer Lingus Logo
9:20 am - 3:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
$1,005Aer Lingus
Thu, Jan 7 - Sun, Jan 10
Multiple Airlines Logo
4:30 pm - 11:55 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
14h 25m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
8:00 pm - 3:55 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
24h 55m2 stops Dublin Frankfurt am Main
$1,011Multiple Airlines
Wed, Nov 25 - Mon, Nov 30
Aer Lingus Logo
8:50 pm - 7:30 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
17h 40m1 stop Dublin
Aer Lingus Logo
9:20 am - 3:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
$1,032Aer Lingus
Sat, Nov 28 - Sat, Dec 5
Multiple Airlines Logo
5:15 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 30m1 stop Dublin
Multiple Airlines Logo
8:20 am - 6:30 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
15h 10m2 stops Glasgow Intl Reykjavik Keflavik Intl
$1,075Multiple Airlines
Booking Insights

Price, demand and travel trends for Washington, D.C. Dulles Intl Airport to Southampton flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Southampton?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Southampton. It’s 6% cheaper than the average day, while Friday is the most expensive, with prices 35% higher.

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Key details for Washington, D.C. Dulles Intl Airport to Southampton flights

Cheapest flight

$340
The most popular month to fly with an average 43% increase in travelers.
One-way flight from Washington, D.C. Dulles Intl 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

Your Washington, D.C. Dulles Intl Airport to Southampton flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Southampton?

    Only Economy Class is available on flights from Washington, D.C. Dulles Intl Airport to Southampton.

  • How long is a flight from Washington, D.C. Dulles Intl Airport to Southampton?

    There are currently no nonstop flights available from Washington, D.C. Dulles Intl Airport to Southampton. Flights with 1 layover take between 10h 58m and 11h 27m in total, depending on the connection.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport to Southampton?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Washington, D.C. Dulles Intl Airport to Southampton flight?

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Southampton range from $1,079 to $1,458, with an average of $1,148 over the past 12 months. Anything below $1,079 counts as a good deal.

  • How are flight prices from Washington, D.C. Dulles Intl Airport to Southampton looking right now?

    One-way fares from Washington, D.C. Dulles Intl Airport to Southampton are currently lower than usual. Average one-way flight prices are about $464, which is 28% below the typical average for this route.

  • What car rental options are available at Southampton Eastleigh Airport (SOU)?

    Southampton Eastleigh Airport (SOU) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include:

    • Alamo
    • Budget
    • Avis
    • Sixt
    • Enterprise Rent-A-Car

  • Which airports can I use when flying from Washington, D.C. Dulles Intl Airport to Southampton?

    Flights from Washington, D.C. Dulles Intl Airport to Southampton usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Southampton Eastleigh (SOU).

  • Which airports do connecting flights from Washington, D.C. Dulles Intl Airport to Southampton pass through?

    Connecting flights from Washington, D.C. Dulles Intl Airport to Southampton most commonly pass through:

    • Dublin (DUB) - 60% of one-stop connections
    • Amsterdam Schiphol (AMS) - 40% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. Dulles Intl Airport to Southampton?

    Yes. Flexible dates can save you up to 31% on flights from Washington, D.C. Dulles Intl Airport to Southampton. Wednesday is the cheapest departure day at $1,080 round-trip on average, while Friday is the most expensive at $1,561, a difference of $481.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Washington, D.C. Dulles Intl Airport to Southampton?

    Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time at 10h 58m, compared with 11h 27m via Dublin (DUB).

  • What is the time difference between Washington, D.C. Dulles Intl Airport and Southampton?

    Southampton is 5 hours ahead of Washington, D.C. Dulles Intl Airport (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Southampton?

    Some of the most popular sights in Southampton are Southampton town walls, SeaCity Museum and Southampton General Hospital. These are among the most viewed places in Southampton on KAYAK.

Your guide to booking Washington, D.C. Dulles Intl Airport to Southampton flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $1,080, about $481 less than Friday fares (31% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport to Southampton trip for March. Fares historically average $937 round-trip in that month - typically $624 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Southampton Eastleigh Airport.

    • DoubleTree by Hilton Southampton
    • Premier Inn Southampton Airport

More options for your flight from Dulles Intl to Southampton

Complete your trip to Southampton with a hotel stay or car rental

Car rentals in Southampton
Hotels in Southampton