How long does it take to fly to Southampton?

The average flight duration from Washington, D.C. to Southampton depends on which airport you fly into and out of. Flying from Baltimore to London Heathrow Airport is 7h 05m on average, while flying from Washington, D.C. to London Heathrow Airport is 8h 12m on average. London Heathrow Airport is the most popular airport in Southampton.

When did momondo last update prices for flights from Washington, D.C. to Southampton Eastleigh Airport?

Prices for flights from Washington, D.C. to Southampton Eastleigh Airport are updated daily.

How old do you have to be to fly from Washington, D.C. to Southampton Eastleigh Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Southampton Eastleigh Airport.

What documentation or ID do you need to fly to Southampton Eastleigh Airport?

The travel and health documents you'll need for your trip to Southampton Eastleigh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southampton Eastleigh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£249 Cheap Flights from Washington, D.C. to Southampton in 2026

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Find the cheapest flights from Washington, D.C. to London

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One-way

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Enter your travel dates to find the best prices.

19:05 - 17:00

IAD

SOU

17h 55m

1 stop

17:20 - 15:35

SOU

IAD

27h 15m

1 stop

£567Delta

Thu, 19 Mar - Tue, 31 Mar

19:05 - 17:05

IAD

SOU

18h 00m

1 stop

17:35 - 17:05

SOU

IAD

27h 30m

1 stop

£568Delta

Sun, 15 Mar - Wed, 25 Mar

13:19 - 08:20

IAD

SOU

15h 01m

2 stops

17:20 - 15:35

SOU

IAD

27h 15m

1 stop

£571Delta

Mon, 23 Mar - Tue, 31 Mar

07:18 - 08:20

IAD

SOU

21h 02m

2 stops

17:35 - 17:05

SOU

IAD

27h 30m

1 stop

£572Delta

Wed, 18 Mar - Tue, 24 Mar

09:40 - 15:35

DCA

SOU

24h 55m

2 stops

20:10 - 18:05

SOU

DCA

25h 55m

2 stops

£720Multiple Airlines

Sat, 7 Mar - Fri, 13 Mar

09:40 - 17:45

DCA

SOU

27h 05m

3 stops

20:10 - 19:45

SOU

DCA

27h 35m

2 stops

£787Multiple Airlines

Sat, 7 Mar - Fri, 13 Mar

21:30 - 19:30

BWI

SOU

17h 00m

2 stops

20:00 - 19:45

SOU

BWI

28h 45m

2 stops

£938Aer Lingus

Sat, 23 May - Sat, 30 May

11:00 - 08:35

DCA

SOU

16h 35m

2 stops

09:15 - 23:26

SOU

DCA

19h 11m

2 stops

£943Scandinavian Airlines

Wed, 17 Jun - Sun, 21 Jun

21:30 - 19:30

BWI

SOU

17h 00m

2 stops

09:10 - 19:45

SOU

BWI

15h 35m

2 stops

£965Aer Lingus

Fri, 22 May - Sun, 31 May

13:00 - 08:35

BWI

SOU

14h 35m

2 stops

09:15 - 22:13

SOU

BWI

17h 58m

2 stops

£1,110Scandinavian Airlines

Wed, 17 Jun - Sun, 21 Jun

British Airways flights from Washington, D.C. to Southampton

Our best British Airways deals on Washington, D.C. to Southampton flight tickets

British Airways

25 Feb

IAD17:05Washington, D.C. Dulles Intl

10h 40m

1 stop

SOU08:45Southampton Eastleigh

1 Mar

SOU10:35Southampton Eastleigh

13h 55m

2 stops

IAD19:30Washington, D.C. Dulles Intl

£2,975

British Airways

25 Feb

IAD17:05Washington, D.C. Dulles Intl

10h 40m

1 stop

SOU08:45Southampton Eastleigh

9 May

SOU06:50Southampton Eastleigh

15h 35m

2 stops

IAD17:25Washington, D.C. Dulles Intl

£3,018

British Airways

25 Feb

IAD17:05Washington, D.C. Dulles Intl

19h 25m

2 stops

SOU17:30Southampton Eastleigh

1 Mar

SOU10:35Southampton Eastleigh

13h 55m

2 stops

IAD19:30Washington, D.C. Dulles Intl

£3,248

Delta flights from Washington, D.C. to Southampton

Our best Delta deals on Washington, D.C. to Southampton flight tickets

Delta

19 Mar

IAD19:05Washington, D.C. Dulles Intl

17h 55m

1 stop

SOU17:00Southampton Eastleigh

31 Mar

SOU17:20Southampton Eastleigh

27h 15m

1 stop

IAD15:35Washington, D.C. Dulles Intl

£567

Delta

15 Mar

IAD19:05Washington, D.C. Dulles Intl

18h 00m

1 stop

SOU17:05Southampton Eastleigh

25 Mar

SOU17:35Southampton Eastleigh

27h 30m

1 stop

IAD17:05Washington, D.C. Dulles Intl

£568

Delta

23 Mar

IAD13:19Washington, D.C. Dulles Intl

15h 01m

2 stops

SOU08:20Southampton Eastleigh

31 Mar

SOU17:20Southampton Eastleigh

27h 15m

1 stop

IAD15:35Washington, D.C. Dulles Intl

£571

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 19/3

19:05-17:00

1 stop17h 55m

Southampton Eastleigh

Tue 31/3

17:20-15:35

1 stop27h 15m

£567

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 15/3

19:05-17:05

1 stop18h 00m

Southampton Eastleigh

Wed 25/3

17:35-17:05

1 stop27h 30m

£568

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 23/3

13:19-08:20

2 stops15h 01m

Southampton Eastleigh

Tue 31/3

17:20-15:35

1 stop27h 15m

£571

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 18/3

07:18-08:20

2 stops21h 02m

Southampton Eastleigh

Tue 24/3

17:35-17:05

1 stop27h 30m

£572

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sat 7/3

09:40-15:35

2 stops24h 55m

Southampton Eastleigh

Fri 13/3

20:10-18:05

2 stops25h 55m

£720

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sat 7/3

09:40-17:45

3 stops27h 05m

Southampton Eastleigh

Fri 13/3

20:10-19:45

2 stops27h 35m

£787

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sat 23/5

21:30-19:30

2 stops17h 00m

Southampton Eastleigh

Sat 30/5

20:00-19:45

2 stops28h 45m

£938

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Wed 17/6

11:00-08:35

2 stops16h 35m

Southampton Eastleigh

Sun 21/6

09:15-23:26

2 stops19h 11m

£943

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 22/5

21:30-19:30

2 stops17h 00m

Southampton Eastleigh

Sun 31/5

09:10-19:45

2 stops15h 35m

£965

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Wed 17/6

13:00-08:35

2 stops14h 35m

Southampton Eastleigh

Sun 21/6

09:15-22:13

2 stops17h 58m

£1,110

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Southampton

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Airlines

Other information

What is the cheapest airline that flies from Washington, D.C. to Southampton Eastleigh?

Aer Lingus, Delta, and KLM are the most popular carriers operating from Washington, D.C. to Southampton Eastleigh

Which airlines fly to Southampton?

British Airways, Virgin Atlantic and United Airlines are the top three most popular airlines that fly to Southampton from Washington, D.C. according to our data. British Airways is the first choice among our users, with 48% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 8 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

When to book flights from Washington, D.C. to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Southampton according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Washington, D.C. to Southampton (WAS to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Southampton

Fastest flight time	9h 25m
Direct flights	None

The fastest flight from Washington, D.C. to Southampton takes 9h 25m

There are no direct flights from Washington, D.C. to Southampton. There are no popular flight routes from Washington, D.C. to Southampton.

Search flight deals

How far is Washington, D.C. to Southampton Eastleigh by plane?
Washington, D.C. and Southampton Eastleigh are 3622.6 mi apart from one another. 9h 25m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to Southampton Eastleigh Airport?
Prices for flights from Washington, D.C. to Southampton Eastleigh Airport are updated daily.
How old do you have to be to fly from Washington, D.C. to Southampton Eastleigh Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Southampton Eastleigh Airport.
What documentation or ID do you need to fly to Southampton Eastleigh Airport?
The travel and health documents you'll need for your trip to Southampton Eastleigh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southampton Eastleigh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Portsmouth

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Southampton?

It is quick and easy to find Washington, D.C. to Southampton flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Southampton that suits you.

Can I find flights from Washington, D.C. to Southampton with flexible booking policies on momondo?

Yes. All flights to Southampton from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Southampton?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Southampton.

I’m not ready to book a flight from Washington, D.C. to Southampton right now. Can momondo alert me if prices change?

Price alerts on flights to Southampton from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Southampton trip

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Cheap flights from Washington, D.C. to London from £249

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to London departing on 27/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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British Airways flights from Washington, D.C. to Southampton

Our best British Airways deals on Washington, D.C. to Southampton flight tickets

Delta flights from Washington, D.C. to Southampton

Our best Delta deals on Washington, D.C. to Southampton flight tickets

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How to get the cheapest flight ticket from Washington, D.C. to Southampton

What is the cheapest airline that flies from Washington, D.C. to Southampton Eastleigh?

Which airlines fly to Southampton?

How long does it take to fly to Southampton?

When to book flights from Washington, D.C. to Southampton

Cheap Washington, D.C. to Southampton (WAS to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Southampton

Fastest flight time

Direct flights

Travelling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Southampton?

Can I find flights from Washington, D.C. to Southampton with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to Southampton?

I’m not ready to book a flight from Washington, D.C. to Southampton right now. Can momondo alert me if prices change?

An easier way to manage your Southampton trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

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Fly your favourite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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