Menu

Cheap flights from Washington Dulles Intl (IAD) to Southampton (SOU)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
Washington Dulles Intl (IAD) to Southampton (SOU)

How far in advance should I book a flight from Washington Dulles Intl to Southampton?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 51 days in advance, which can save you up to 38% on flights from Washington Dulles Intl to Southampton compared to booking the week you need them. Waiting 51 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $813. For sooner than that we have options available in the next 3 days from $886.

What is the cheapest month to fly from Washington Dulles Intl to Southampton?

Our data shows that February tends to be the cheapest month to fly to Southampton from Washington Dulles Intl. Users have commonly found prices around $634 for the month, but tickets can be as low as $394. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Washington Dulles Intl to Southampton (IAD - SOU)?

When flying from Washington Dulles Intl to Southampton, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Useful info, stats and facts about Washington Dulles Intl to Southampton flights.

Flight FAQs

From Washington Dulles Intl to Southampton

Are flight prices decreasing from Washington Dulles Intl to Southampton due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Washington Dulles Intl and Southampton for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Washington Dulles Intl to Southampton for under $4,800 on Cheapflights?

Yes, there are multiple flights from Washington Dulles Intl to Southampton for under $4,800. The cheapest flight booked recently is on Delta for just $4,743, but on average you can expect to pay $7,035.

Are there nonstop flights from Washington Dulles Intl to Southampton for under $4,700 on Cheapflights?

There are no nonstop flights from Washington Dulles Intl to Southampton, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Does it rain more in Washington Dulles Intl or Southampton?

In Washington Dulles Intl, there will be greater rainfall in Washington Dulles Intl compared to Southampton over the next 14 days.

Is Washington Dulles Intl weather warmer or cooler than Southampton?

You can imagine temperatures to be in the 88 °F range in July. The weather in Southampton is generally colder than Washington Dulles Intl's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from Washington Dulles Intl to Southampton?

A quick flight from Washington Dulles Intl to Southampton can take about 17h 15m. Delta provides one of the quickest options available for as low as $4,743.

What is the cheapest airline to fly from Washington Dulles Intl to Southampton round-trip?

Flying on Delta is currently your cheapest option to Southampton, with prices starting at $4,743.

Alternative routes for Washington Dulles Intl to Southampton

Destination information for Southampton

Things to know before you go. Useful info for your trip from Washington Dulles Intl to Southampton
Today's exchange rate
$1 = £0.79
Average temperature for September in Southampton
66.2 °F
Avg rainfall for September in Southampton
2.0 ″

Airports servicing Washington

Airports servicing Southampton

Home Europe United Kingdom England Southampton Cheap flights from Washington Dulles Intl to Southampton