SOU - IAD

$430 Find Cheap Flights from Southampton to Washington, D.C. - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$705
Typical prices: $706-$815
Aer Lingus
Tue 2/27Mon 3/5
SOU - IAD • 1 stop
Cheapest one-way
$430
Typical prices: $632-$870
Multiple Airlines
Fri 1/12
SOU - IAD • 3 stops
When to travel
July
Cheapest • 10% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dublin (DUB)
Cheapest • Avg $781 (round-trip)
Amsterdam Schiphol (AMS)
Shortest trip • 12h (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
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Flight Deals

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

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

Recent round-trip flight deals from Southampton to Dulles Intl

Sat, Feb 27 - Fri, Mar 5
Aer Lingus Logo
9:20 am - 3:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
Aer Lingus Logo
5:15 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 30m1 stop Dublin
$705Aer Lingus
Sun, Dec 6 - Sun, Dec 13
Aer Lingus Logo
12:25 pm - 7:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 55m1 stop Dublin
Aer Lingus Logo
5:15 pm - 8:50 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 35m1 stop Dublin
$775Aer Lingus
Mon, Dec 21 - Mon, Dec 28
Aer Lingus Logo
12:25 pm - 7:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 55m1 stop Dublin
Aer Lingus Logo
5:15 pm - 8:50 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 35m1 stop Dublin
$847Aer Lingus
Fri, Dec 18 - Sun, Dec 27
Aer Lingus Logo
9:20 am - 3:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
Aer Lingus Logo
5:15 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 30m1 stop Dublin
$900Aer Lingus
Thu, Dec 24 - Thu, Dec 31
Delta Logo
8:40 am - 3:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
12h 05m1 stop Amsterdam Schiphol
Delta Logo
6:00 am - 8:10 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
21h 10m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol
$927Delta
Thu, Dec 24 - Thu, Dec 31
Delta Logo
8:40 am - 10:56 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
19h 16m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 8:10 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
21h 10m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol
$932Delta
Sun, Dec 6 - Sun, Dec 13
Delta Logo
9:30 am - 3:40 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 10m1 stop Amsterdam Schiphol
Delta Logo
12:35 pm - 8:10 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
14h 35m2 stops New York John F Kennedy Intl Amsterdam Schiphol
$935Delta
Sat, Feb 27 - Fri, Mar 5
Delta Logo
9:25 am - 8:26 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
16h 01m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
Delta Logo
6:15 pm - 8:55 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
9h 40m1 stop Amsterdam Schiphol
$942Delta
Tue, Apr 27 - Tue, May 18
Delta Logo
9:05 am - 3:30 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Amsterdam Schiphol
Delta Logo
6:30 pm - 4:50 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
17h 20m2 stops New York John F Kennedy Intl Amsterdam Schiphol
$949Delta
Tue, Apr 27 - Tue, May 18
Delta Logo
9:05 am - 9:12 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
17h 07m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
Delta Logo
6:30 pm - 4:50 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
17h 20m2 stops New York John F Kennedy Intl Amsterdam Schiphol
$953Delta
Booking Insights

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

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

How much is a round-trip flight from Southampton to Washington, D.C. Dulles Intl Airport?

Round-trip flights from Southampton to Washington, D.C. Dulles Intl Airport typically range from $706 to $815. The lowest price found in the past 5 days was $705, on Aer Lingus.

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

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Southampton to Washington, D.C. Dulles Intl Airport. It’s 13% cheaper than the average day, while Tuesday is the most expensive, with prices 5% higher.

Find deals

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

Low season

January

Cheapest flight

$430
Beat the crowds with an average 88% drop in travelers.
The most popular month to fly with an average 16% increase in travelers.
One-way flight from Southampton to Washington, D.C. Dulles Intl Airport

When to book flights from Southampton to Dulles Intl

Are your dates flexible? Find out the best times to travel from Southampton to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Southampton to Washington, D.C. Dulles Intl Airport 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 Southampton to Washington, D.C. Dulles Intl Airport?

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

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

    There are currently no nonstop flights available from Southampton to Washington, D.C. Dulles Intl Airport. Flights with 1 layover take between 11h 31m and 12h in total, depending on the connection.

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

    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 Southampton to Washington, D.C. Dulles Intl Airport flight?

    Round-trip flights from Southampton to Washington, D.C. Dulles Intl Airport range from $706 to $815, with an average of $774 over the past 12 months. Anything below $706 counts as a good deal.

  • Have flight prices from Southampton to Washington, D.C. Dulles Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $705 to $2,168. That means the highest observed fare was about 3x higher than the lowest one.

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

    One-way fares from Southampton to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $483, which is 34% below the typical average for this route.

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates averaging $70 for economy cars. Top options include:

    • Hertz
    • Dollar
    • Budget
    • Sixt
    • Thrifty

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

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

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

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

    • Dublin (DUB) - 86% of one-stop connections
    • Amsterdam Schiphol (AMS) - 14% of one-stop connections

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

    Yes. Flexible dates can save you up to 17% on flights from Southampton to Washington, D.C. Dulles Intl Airport. Sunday is the cheapest departure day at $679 round-trip on average, while Tuesday is the most expensive at $815, a difference of $136.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

    Flying via Dublin (DUB) gives the shortest average 1-stop total travel time at 11h 31m, compared with 12h via Amsterdam Schiphol (AMS).

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

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

  • What popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

Your guide to booking Southampton to Washington, D.C. Dulles Intl Airport 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 Sunday departure and avoid flying on Tuesday. On this route, Sunday flights average $679, about $136 less than Tuesday fares (17% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Southampton to Washington, D.C. Dulles Intl Airport trip for July. Fares historically average $700 round-trip in that month - typically $704 less than the most expensive month, which is April (based on the last 12 months).

More options for your flight from Southampton to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental

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