What’s the top stopover airport for flights from Southampton to Washington, D.C. Dulles Intl Airport?

Amsterdam (AMS) – chosen by Cheapflights users on 67% of one-stop itineraries from Southampton to Washington, D.C. Dulles Intl Airport on Cheapflights.

What’s the cheapest stopover airport for flights from Southampton to Washington, D.C. Dulles Intl Airport?

Dublin (DUB) is the most affordable one-stop option, with an average return flight price of £655.

Which airport typically offers the quickest stopover for flights from Southampton to Washington, D.C. Dulles Intl Airport?

Flights via Dublin (DUB) offer the fastest connection on this route, with an average stopover time of 1h 48m.

What’s the fastest stopover option from Southampton to Washington, D.C. Dulles Intl Airport?

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 11h 10m.

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

Travellers seeking maximum savings on their Southampton to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

What is the cheapest time of day to fly from SOU to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Southampton to Washington, D.C. Dulles Intl Airport as you normally would.

What airport do you fly from for flights from Southampton to Washington, D.C. Dulles Intl?

Most people fly from Southampton Eastleigh (SOU) if they book a flight from Southampton to Washington, D.C. Dulles Intl. On average, Eastleigh has 0 outbound flights to Washington, D.C. Dulles Intl per day from 0 airlines. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

Can I find deals for flights from Southampton to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Southampton to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Southampton to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Dulles Intl.

Can I find deals for business class flights from Southampton to Dulles Intl?

Yes. Cheapflights offers flight deals from Southampton to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£454+ Cheap Flights from Southampton to Washington, D.C. Dulles Intl Airport

Cheap flight deals from Southampton to Dulles Intl

Round-trip from	£454
Popular in	July
Cheapest in	February
Average price	£488

Virgin Atlantic
1/11-8/11
3 total stops
26h 30m total
Southampton to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£48 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

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Find flight deals from Southampton to Dulles Intl

Cheapest flights from Southampton to Dulles Intl
Explore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Sat 1/1109:25SOU - IAD

1 stop11h 40mVirgin Atlantic

Sat 8/1118:05IAD - SOU

1 stop9h 45mVirgin Atlantic

Deal found 17/9£454

Sat 1/1117:30SOU - IAD

3 stops32h 30mMultiple Airlines

Sat 8/1117:30IAD - SOU

2 stops21h 10mMultiple Airlines

Deal found 17/9£746

Thu 18/1208:40SOU - IAD

2 stops16h 15mBritish Airways

Tue 6/121:45IAD - SOU

2 stops13h 15mBritish Airways

Deal found 17/9£1,106

Best flights from Southampton to Dulles Intl
Discover carefully curated flight deals from Southampton to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Sat 1/1109:25SOU - IAD

1 stop11h 40mVirgin Atlantic

Sat 8/1113:00IAD - SOU

2 stops14h 50mVirgin Atlantic

Deal found 17/9£454

Sat 1/1117:30SOU - IAD

3 stops32h 30mMultiple Airlines

Sat 8/1117:30IAD - SOU

2 stops21h 10mMultiple Airlines

Deal found 17/9£746

Thu 18/1208:40SOU - IAD

2 stops16h 15mBritish Airways

Tue 6/121:45IAD - SOU

2 stops13h 15mBritish Airways

Deal found 17/9£1,106

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Sat 1/11

09:25-17:05

1 stop11h 40m

Washington, D.C. Dulles Intl

Sat 8/11

13:00-08:50

2 stops14h 50m

£454

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Sat 1/11

17:30-22:00

3 stops32h 30m

Washington, D.C. Dulles Intl

Sat 8/11

17:30-19:40

2 stops21h 10m

£746

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 18/12

08:40-19:55

2 stops16h 15m

Washington, D.C. Dulles Intl

Tue 6/1

21:45-16:00

2 stops13h 15m

£1,106

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 21/1

08:40-19:55

2 stops16h 15m

£1,046

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 29/12

20:50-19:55

2 stops28h 05m

£2,668

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Best time to book a flight from Southampton to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Southampton with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Southampton to Washington, D.C. Dulles Intl Airport

Prices

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

Currently, January is the cheapest month in which you can book a flight from Southampton to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Southampton to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

What airport do you fly from for flights from Southampton to Washington, D.C. Dulles Intl?
Most people fly from Southampton Eastleigh (SOU) if they book a flight from Southampton to Washington, D.C. Dulles Intl. On average, Eastleigh has 0 outbound flights to Washington, D.C. Dulles Intl per day from 0 airlines. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.
How long is the flight from Southampton to Washington, D.C. Dulles Intl Airport?
Departing from Southampton to Washington, D.C. Dulles Intl Airport will take you 11h 40m. Southampton and Washington, D.C. Dulles Intl Airport are separated by a distance of 3639 mi.
Can I find deals for flights from Southampton to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Southampton to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Dulles Intl.
Can I find deals for business class flights from Southampton to Dulles Intl?
Yes. Cheapflights offers flight deals from Southampton to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Southampton to Washington, D.C. Dulles Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Southampton to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Southampton to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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How does Cheapflights help users find flights from Southampton to Dulles Intl?

Cheapflights makes it easy to find Southampton to Dulles Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Southampton to Dulles Intl.

Can Cheapflights find flights from Southampton to Dulles Intl with no change fees?

Need flexible booking options for your flight to Dulles Intl from Southampton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Southampton to Dulles Intl become cheaper?

Yes, Cheapflights offers price alerts on Southampton to Dulles Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Southampton to Washington, D.C. Dulles Intl Airport from £454

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to Dulles Intl

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Southampton to Dulles Intl

Cheapest flights from Southampton to Dulles IntlExplore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Southampton to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Southampton with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Southampton to Washington, D.C. Dulles Intl Airport

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

What’s the top stopover airport for flights from Southampton to Washington, D.C. Dulles Intl Airport?

What’s the fastest stopover option from Southampton to Washington, D.C. Dulles Intl Airport?

What’s the fastest stopover option from Southampton to Washington, D.C. Dulles Intl Airport?

Which airport typically offers the quickest stopover for flights from Southampton to Washington, D.C. Dulles Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Southampton to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Southampton to Washington, D.C. Dulles Intl?

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

Can I find deals for flights from Southampton to Dulles Intl that include hotel bookings?

How can I find direct flights from Southampton to Dulles Intl?

Can I find deals for business class flights from Southampton to Dulles Intl?

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

Travelling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Southampton to Dulles Intl

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How does Cheapflights help users find flights from Southampton to Dulles Intl?

Why should you use Cheapflights to find cheap flight tickets from Southampton to Dulles Intl?

Can Cheapflights find flights from Southampton to Dulles Intl with no change fees?

Can Cheapflights notify me if prices for flights from Southampton to Dulles Intl become cheaper?

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Cheapest flights from Southampton to Dulles Intl
Explore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.