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

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

Which airlines fly to Washington, D.C.?

British Airways, Virgin Atlantic and Lufthansa are the top three most popular airlines that fly to Washington, D.C. from Southampton according to our data. British Airways is the first choice among our users, with 42% of people opting to fly with this airline when travelling to Washington, D.C.. Keep in mind that there are 16 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Southampton Eastleigh Airport to Washington, D.C. are refreshed on a daily basis.

How many operators does momondo search for flights from Southampton Eastleigh Airport to Washington, D.C.?

As of November 2026, there is 1 operator available to choose from for flights from Southampton Eastleigh Airport to Washington, D.C..

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Southampton Eastleigh Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£323 Cheap Flights from Southampton to Washington, D.C. in 2026/27

Discover deals from 900+ travel sites with momondo.

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

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

09:20 - 15:45SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

11h 25m1 stop Dublin

17:15 - 08:45IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

10h 30m1 stop Dublin

£530Aer Lingus

Sat, 27 Feb - Fri, 5 Mar

09:20 - 15:45SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

11h 25m1 stop Dublin

20:50 - 13:00IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

11h 10m1 stop Dublin

£646Aer Lingus

Fri, 18 Dec - Tue, 22 Dec

09:20 - 15:45SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

11h 25m1 stop Dublin

17:15 - 08:45IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

10h 30m1 stop Dublin

£676Aer Lingus

Fri, 18 Dec - Sun, 27 Dec

08:40 - 15:45SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

12h 05m1 stop Amsterdam Schiphol

18:15 - 17:05IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

17h 50m1 stop Amsterdam Schiphol

£696Delta

Thu, 24 Dec - Thu, 31 Dec

08:40 - 15:45SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

12h 05m1 stop Amsterdam Schiphol

06:00 - 08:10IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

21h 10m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

£696Delta

Thu, 24 Dec - Thu, 31 Dec

08:40 - 22:56SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

19h 16m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

06:00 - 08:10IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

21h 10m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

£700Delta

Thu, 24 Dec - Thu, 31 Dec

09:25 - 20:26SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

16h 01m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

18:15 - 08:55IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

9h 40m1 stop Amsterdam Schiphol

£708Delta

Sat, 27 Feb - Fri, 5 Mar

09:20 - 15:45SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

11h 25m1 stop Dublin

17:15 - 08:50IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

10h 35m1 stop Dublin

£713Aer Lingus

Sun, 28 Feb - Mon, 1 Mar

12:25 - 19:20SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

11h 55m1 stop Dublin

19:40 - 19:30IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

18h 50m2 stops Reykjavik Keflavik Intl Dublin

£760Multiple Airlines

Sun, 28 Feb - Mon, 1 Mar

16:05 - 15:15SOU Southampton Eastleigh-IAD Washington, D.C. Dulles Intl

28h 10m3 stops Alicante Madrid Barajas Lisbon Humberto Delgado

19:40 - 19:30IAD Washington, D.C. Dulles Intl-SOU Southampton Eastleigh

18h 50m2 stops Reykjavik Keflavik Intl Dublin

£760Multiple Airlines

Sun, 28 Feb - Mon, 1 Mar

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

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

British Airways

4 Dec

SOU09:20Southampton Eastleigh

11h 25m

1 stop

IAD15:45Washington, D.C. Dulles Intl

8 Dec

IAD20:50Washington, D.C. Dulles Intl

17h 40m

1 stop

SOU19:30Southampton Eastleigh

£797

British Airways

4 Dec

SOU09:20Southampton Eastleigh

11h 25m

1 stop

IAD15:45Washington, D.C. Dulles Intl

8 Dec

IAD20:50Washington, D.C. Dulles Intl

17h 40m

1 stop

SOU19:30Southampton Eastleigh

£802

British Airways

3 Feb

SOU12:20Southampton Eastleigh

32h 25m

1 stop

IAD15:45Washington, D.C. Dulles Intl

7 Feb

IAD17:15Washington, D.C. Dulles Intl

13h 40m

1 stop

SOU11:55Southampton Eastleigh

£805

Delta flights from Southampton to Washington, D.C.

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

Delta

24 Dec

SOU08:40Southampton Eastleigh

12h 05m

1 stop

IAD15:45Washington, D.C. Dulles Intl

31 Dec

IAD06:00Washington, D.C. Dulles Intl

21h 10m

2 stops

SOU08:10Southampton Eastleigh

£696

Delta

24 Dec

SOU08:40Southampton Eastleigh

19h 16m

2 stops

IAD22:56Washington, D.C. Dulles Intl

31 Dec

IAD06:00Washington, D.C. Dulles Intl

21h 10m

2 stops

SOU08:10Southampton Eastleigh

£700

Delta

27 Feb

SOU09:25Southampton Eastleigh

16h 01m

2 stops

IAD20:26Washington, D.C. Dulles Intl

5 Mar

IAD18:15Washington, D.C. Dulles Intl

9h 40m

1 stop

SOU08:55Southampton Eastleigh

£708

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Sat 27/2

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Fri 5/3

17:15-08:45

1 stop10h 30m

£530

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Fri 18/12

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Tue 22/12

20:50-13:00

1 stop11h 10m

£646

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Fri 18/12

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Sun 27/12

17:15-08:45

1 stop10h 30m

£676

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Thu 24/12

08:40-15:45

1 stop12h 05m

Washington, D.C. Dulles Intl

Thu 31/12

18:15-17:05

1 stop17h 50m

£696

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Thu 24/12

08:40-15:45

1 stop12h 05m

Washington, D.C. Dulles Intl

Thu 31/12

06:00-08:10

2 stops21h 10m

£696

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Thu 24/12

08:40-22:56

2 stops19h 16m

Washington, D.C. Dulles Intl

Thu 31/12

06:00-08:10

2 stops21h 10m

£700

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Sat 27/2

09:25-20:26

2 stops16h 01m

Washington, D.C. Dulles Intl

Fri 5/3

18:15-08:55

1 stop9h 40m

£708

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Sun 28/2

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Mon 1/3

17:15-08:50

1 stop10h 35m

£713

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Sun 28/2

12:25-19:20

1 stop11h 55m

Washington, D.C. Dulles Intl

Mon 1/3

19:40-19:30

2 stops18h 50m

£760

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Sun 28/2

16:05-15:15

3 stops28h 10m

Washington, D.C. Dulles Intl

Mon 1/3

19:40-19:30

2 stops18h 50m

£760

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 Southampton to Washington, D.C.

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

Prices

Airlines

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Southampton is on a Friday. momondo users have found tickets for Friday departures for as low as £567. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Southampton because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £641.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

At midday is the cheapest time of day to fly from Southampton to Washington, D.C. when you can find flight prices for as low as £567. Flying to Washington, D.C. at midday is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the morning, with an average ticket price of £602. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

Estimated return price

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

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

Best price found	£323
Fastest flight time	11h 25m
Direct flights	None

The best one-way flight to Washington, D.C. from Southampton in the past 72 hours is £323. The best return flight deal from Southampton to Washington, D.C. found on momondo in the last 72 hours is £530.

The fastest flight from Southampton to Washington, D.C. takes 11h 25m

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

Search flight deals

Frequently asked questions about flying from Southampton to Washington, D.C.

How far is Southampton Eastleigh to Washington, D.C. by plane?
Washington, D.C. is 3622.6 mi away from Southampton Eastleigh. Typically, this will take 11h 25m by plane in normal conditions.
When did momondo last update prices for flights from Southampton Eastleigh Airport to Washington, D.C.?
Prices for flights from Southampton Eastleigh Airport to Washington, D.C. are refreshed on a daily basis.
How many operators does momondo search for flights from Southampton Eastleigh Airport to Washington, D.C.?
As of November 2026, there is 1 operator available to choose from for flights from Southampton Eastleigh Airport to Washington, D.C..
How old do you have to be to fly from Southampton Eastleigh Airport to Washington, D.C.?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Southampton Eastleigh Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Southampton to Washington, D.C.

Compare and see reviews for airlines that fly from Southampton to Washington, D.C. with momondo

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom £456	Free Cancellation	Rating 7.3 1,883 reviews		Search Aer Lingus flights

Alexandria

Springfield

Arlington

National Harbor

College Park

Fairfax

Linthicum Heights

Lutherville Timonium

Gettysburg

Ellicott City

Glen Burnie

Laurel

Woodbridge

Lexington Park

Bethesda

Silver Spring

Rockville

Landover

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Southampton to Washington, D.C. . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Southampton to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Southampton.

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

If you are not ready to book a flight from Southampton to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Southampton to Washington, D.C. from £323

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to Washington, D.C. departing on 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

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Big names, great deals

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

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

Delta flights from Southampton to Washington, D.C.

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

momondo Fare Finder

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

See travel insights to Washington, D.C. from

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

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

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

Which airlines fly to Washington, D.C.?

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

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

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from Southampton to Washington, D.C.

Best airlines flying from Southampton to Washington, D.C.

Compare and see reviews for airlines that fly from Southampton to Washington, D.C. with momondo

Travelling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. 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 States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

Fly your favourite airline to Washington, D.C.

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

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

Popular Cities in the United States

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