SOU - IAD

$563 Find Cheap Flights from Southampton to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Southampton to Dulles Intl departing on 10/20. 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 Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Southampton to Washington, D.C., 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 Southampton to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% 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.

Flights Deals
Booking Insights
Flights Deals

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

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

Mon, Sep 15 - Mon, Sep 22
KLM Logo
5:35 pm - 3:35 pmSOU-IAD
27h 00m1 stop
KLM Logo
5:25 pm - 8:45 amIAD-SOU
10h 20m1 stop
$731KLM
Find Deal
Mon, Sep 22 - Mon, Sep 29
Virgin Atlantic Logo
9:20 am - 7:37 pmSOU-IAD
15h 17m2 stops
Virgin Atlantic Logo
10:07 am - 8:45 amIAD-SOU
17h 38m2 stops
$736Virgin Atlantic
Find Deal
Sun, Aug 31 - Sun, Sep 7
 Logo
8:00 pm - 11:13 amSOU-IAD
44h 13m2 stops
 Logo
10:15 pm - 4:45 pmIAD-SOU
13h 30m1 stop
Sun, Aug 31 - Sun, Sep 7
 Logo
9:10 am - 10:10 pmSOU-IAD
18h 00m2 stops
 Logo
8:30 pm - 4:45 pmIAD-SOU
15h 15m2 stops
Wed, Aug 20 - Sun, Aug 24
Delta Logo
9:20 am - 3:35 pmSOU-IAD
11h 15m1 stop
Delta Logo
8:23 pm - 5:00 pmIAD-SOU
15h 37m2 stops
$873Delta
Find Deal
Mon, Aug 18 - Mon, Aug 25
Delta Logo
9:20 am - 12:21 amSOU-IAD
20h 01m2 stops
Delta Logo
5:25 pm - 8:50 amIAD-SOU
10h 25m1 stop
$878Delta
Find Deal
Mon, Sep 1 - Sun, Oct 5
British Airways Logo
9:40 am - 6:55 pmSOU-IAD
14h 15m1 stop
British Airways Logo
7:25 pm - 4:00 pmIAD-SOU
15h 35m2 stops
$999British Airways
Find Deal
Mon, Sep 22 - Mon, Sep 29
Aer Lingus Logo
9:40 am - 6:55 pmSOU-IAD
14h 15m1 stop
Aer Lingus Logo
5:20 pm - 8:15 amIAD-SOU
9h 55m1 stop
$1,065Aer Lingus
Find Deal
Mon, Sep 8 - Sun, Sep 14
Aer Lingus Logo
9:40 am - 3:50 pmSOU-IAD
11h 10m1 stop
Aer Lingus Logo
5:20 pm - 9:10 amIAD-SOU
10h 50m1 stop
$1,072Aer Lingus
Find Deal
Wed, Oct 1 - Fri, Oct 10
British Airways Logo
9:10 am - 7:30 pmSOU-IAD
15h 20m1 stop
British Airways Logo
7:25 pm - 1:20 pmIAD-SOU
12h 55m2 stops
$1,081British Airways
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from Southampton to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Southampton to Washington, D.C.?

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 Southampton to Washington, D.C. were found on KLM ($731) and Virgin Atlantic ($736).

Good to know

Cheapest flight$563
Flight from Southampton to Washington, D.C.

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
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 Southampton to Washington, D.C. flights

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

    In the last 3 days, the lowest price for a flight from Southampton to Washington, D.C. Dulles Intl Airport was $563 for a one-way ticket and $731 for a round-trip.

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

    Yes, you’ll need a passport to travel to Washington, D.C. from Southampton.

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

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

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

    oneworld, and SkyTeam are the airline alliances operating flights between Southampton and Washington, D.C., with SkyTeam being the most commonly used for this route.

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

    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 Southampton to Washington, D.C..

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

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

    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 Washington, D.C. with an airline and back to Southampton with another airline. Booking your flights between Southampton and IAD 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 Southampton to Washington, D.C.?

    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 Washington, D.C. from Southampton up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

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.