SOU - IAD

$600 Find Cheap Flights from Southampton to Washington, D.C. - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$688
Typical prices: $706-$815
British Airways
Fri 10/5Fri 10/12
SOU - IAD • 1 stop
Cheapest one-way
$600
Typical prices: $425-$772
Delta
Fri 11/23
SOU - IAD • 1 stop
When to travel
July
Cheapest • 10% price drop
March
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Amsterdam Schiphol (AMS)
Cheapest • Avg $739 (round-trip)
Dublin (DUB)
Shortest trip • 11h 29m (one-way)
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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

Mon, Oct 5 - Mon, Oct 12
British Airways Logo
9:20 am - 3:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
British Airways Logo
8:55 pm - 7:30 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
17h 35m1 stop Dublin
$688British Airways
Thu, Oct 29 - Thu, Nov 5
British Airways Logo
12:25 pm - 8:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 55m1 stop Dublin
British Airways Logo
5:15 pm - 11:55 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
13h 40m1 stop Dublin
$691British Airways
Thu, Oct 29 - Thu, Nov 5
British Airways Logo
12:25 pm - 8:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 55m1 stop Dublin
British Airways Logo
5:15 pm - 11:55 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
13h 40m1 stop Dublin
$692British Airways
Wed, Oct 7 - Sun, Oct 11
British Airways Logo
9:20 am - 7:25 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
15h 05m1 stop Dublin
British Airways Logo
5:15 pm - 4:50 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
18h 35m1 stop Dublin
$694British Airways
Thu, Nov 12 - Sun, Nov 15
British Airways Logo
9:20 am - 3:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
British Airways Logo
5:15 pm - 8:50 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 35m1 stop Dublin
$731British Airways
Thu, Nov 12 - Sun, Nov 15
British Airways Logo
9:20 am - 3:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
British Airways Logo
5:15 pm - 8:50 amIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
10h 35m1 stop Dublin
$732British Airways
Thu, Oct 29 - Thu, Nov 5
British Airways Logo
12:25 pm - 8:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 55m1 stop Dublin
British Airways Logo
9:45 pm - 7:10 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
16h 25m2 stops London Heathrow Belfast City
$757British Airways
Thu, Oct 29 - Thu, Nov 5
British Airways Logo
9:20 am - 4:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
British Airways Logo
6:05 pm - 7:10 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
20h 05m2 stops London Heathrow Belfast City
$760British Airways
Thu, Oct 29 - Thu, Nov 5
British Airways Logo
9:20 am - 4:45 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Dublin
British Airways Logo
6:05 pm - 7:10 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
20h 05m2 stops London Heathrow Belfast City
$762British Airways
Thu, Nov 12 - Sun, Nov 15
British Airways Logo
12:25 pm - 7:20 pmSOU  Southampton Eastleigh-IAD Washington, D.C. Dulles Intl
11h 55m1 stop Dublin
British Airways Logo
9:45 pm - 7:10 pmIAD  Washington, D.C. Dulles Intl-SOU Southampton Eastleigh
16h 25m2 stops London Heathrow Belfast City
$764British Airways
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 from Southampton to Washington, D.C. Dulles Intl Airport 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 start at $688. Prices are below average for this route right now, with typical round-trip fares ranging from $706 to $815. The lowest price found in the past 5 days was $688 on British Airways.

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

Low season

January

Cheapest flight

$600
Most popular time to fly with an average 3% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

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

  • 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
    Together, these airports account for 100% of one-stop bookings on this route.

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

    Yes. Being flexible with your travel dates can save you up to 14% on the Southampton to Washington, D.C. Dulles Intl Airport route. Thursday is the cheapest departure day at $706 round-trip on average, while Tuesday is the most expensive at $815, a difference of $109. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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.

  • 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 29m and 12h 03m 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.

  • 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 varied from about $688 to $1,351. That means the highest observed fare was about 96% 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 higher than usual. Average one-way flight prices are about $802, which is 11% above the typical average for this route.

  • 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 29m, compared with 12h 03m 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 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 starting from around $24 for economy cars. Top options include:
    · Dollar
    · Budget
    · Hertz
    · Sixt
    · Thrifty

  • 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.

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 can be flexible, aim for a Thursday departure instead of Tuesday. On this route, Thursday flights average $706 - about $109 less than Tuesday (13% 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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