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

Aer Lingus and British Airways 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 43% of people opting to fly with this airline when travelling to Washington, D.C.. Keep in mind that there are 18 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 June 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.

£354 Cheap Flights from Southampton to Washington, D.C. in 2026

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

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

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

09:20 - 15:45

SOU

IAD

11h 25m

1 stop

17:15 - 08:40

IAD

SOU

10h 25m

1 stop

£515British Airways

Mon, 7 Sep - Mon, 14 Sep

17:05 - 20:30

SOU

IAD

31h 25m

1 stop

17:05 - 16:35

IAD

SOU

18h 30m

1 stop

£517British Airways

Thu, 29 Oct - Thu, 5 Nov

08:40 - 22:55

SOU

BWI

18h 15m

2 stops

12:15 - 08:10

BWI

SOU

14h 55m

2 stops

£571KLM

Thu, 29 Oct - Thu, 5 Nov

08:40 - 22:55

SOU

BWI

18h 15m

2 stops

12:15 - 08:10

BWI

SOU

14h 55m

2 stops

£573KLM

Thu, 29 Oct - Thu, 5 Nov

17:30 - 22:29

SOU

BWI

33h 59m

2 stops

11:12 - 08:45

BWI

SOU

16h 33m

2 stops

£621Delta

Sun, 12 Jul - Sat, 25 Jul

08:40 - 22:55

SOU

BWI

18h 15m

2 stops

12:15 - 08:10

BWI

SOU

14h 55m

2 stops

£648Virgin Atlantic

Thu, 29 Oct - Thu, 5 Nov

08:40 - 23:04

SOU

BWI

18h 24m

2 stops

12:25 - 08:10

BWI

SOU

14h 45m

2 stops

£648Virgin Atlantic

Thu, 29 Oct - Thu, 5 Nov

18:05 - 15:53

SOU

BWI

26h 48m

2 stops

13:00 - 08:45

BWI

SOU

14h 45m

2 stops

£660Delta

Mon, 13 Jul - Sat, 25 Jul

09:15 - 18:01

SOU

DCA

13h 46m

2 stops

19:59 - 08:40

DCA

SOU

31h 41m

2 stops

£733Multiple Airlines

Tue, 18 Aug - Sat, 29 Aug

09:15 - 19:57

SOU

DCA

15h 42m

2 stops

11:00 - 14:30

DCA

SOU

22h 30m

3 stops

£1,010Multiple Airlines

Tue, 18 Aug - Sat, 29 Aug

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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

7 Sept

SOU09:20Southampton Eastleigh

11h 25m

1 stop

IAD15:45Washington, D.C. Dulles Intl

14 Sept

IAD17:15Washington, D.C. Dulles Intl

10h 25m

1 stop

SOU08:40Southampton Eastleigh

£515

British Airways

29 Oct

SOU17:05Southampton Eastleigh

31h 25m

1 stop

IAD20:30Washington, D.C. Dulles Intl

5 Nov

IAD17:05Washington, D.C. Dulles Intl

18h 30m

1 stop

SOU16:35Southampton Eastleigh

£517

British Airways

29 Oct

SOU17:05Southampton Eastleigh

31h 25m

1 stop

IAD20:30Washington, D.C. Dulles Intl

5 Nov

IAD17:05Washington, D.C. Dulles Intl

18h 30m

1 stop

SOU16:35Southampton Eastleigh

£519

Aer Lingus flights from Southampton to Washington, D.C.

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

Aer Lingus

18 Aug

SOU09:15Southampton Eastleigh

11h 30m

1 stop

IAD15:45Washington, D.C. Dulles Intl

29 Aug

IAD17:15Washington, D.C. Dulles Intl

10h 20m

1 stop

SOU08:35Southampton Eastleigh

£626

Aer Lingus

7 Sept

SOU09:20Southampton Eastleigh

11h 25m

1 stop

IAD15:45Washington, D.C. Dulles Intl

7 Sept

IAD22:25Washington, D.C. Dulles Intl

16h 05m

2 stops

SOU19:30Southampton Eastleigh

£717

Aer Lingus

4 Aug

SOU20:00Southampton Eastleigh

24h 30m

2 stops

IAD15:30Washington, D.C. Dulles Intl

19 Aug

IAD17:15Washington, D.C. Dulles Intl

10h 25m

1 stop

SOU08:40Southampton Eastleigh

£728

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 - IAD

SOUIAD

Southampton Eastleigh

Mon 7/9

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Mon 14/9

17:15-08:40

1 stop10h 25m

£515

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 29/10

17:05-20:30

1 stop31h 25m

Washington, D.C. Dulles Intl

Thu 5/11

17:05-16:35

1 stop18h 30m

£517

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 29/10

08:40-22:55

2 stops18h 15m

Baltimore/Washington

Thu 5/11

12:15-08:10

2 stops14h 55m

£571

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 29/10

08:40-22:55

2 stops18h 15m

Baltimore/Washington

Thu 5/11

12:15-08:10

2 stops14h 55m

£573

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Sun 12/7

17:30-22:29

2 stops33h 59m

Baltimore/Washington

Sat 25/7

11:12-08:45

2 stops16h 33m

£621

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 29/10

08:40-22:55

2 stops18h 15m

Baltimore/Washington

Thu 5/11

12:15-08:10

2 stops14h 55m

£648

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 29/10

08:40-23:04

2 stops18h 24m

Baltimore/Washington

Thu 5/11

12:25-08:10

2 stops14h 45m

£648

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Mon 13/7

18:05-15:53

2 stops26h 48m

Baltimore/Washington

Sat 25/7

13:00-08:45

2 stops14h 45m

£660

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Tue 18/8

09:15-18:01

2 stops13h 46m

Washington, D.C. Reagan-National

Sat 29/8

19:59-08:40

2 stops31h 41m

£733

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Tue 18/8

09:15-19:57

2 stops15h 42m

Washington, D.C. Reagan-National

Sat 29/8

11:00-14:30

3 stops22h 30m

£1,010

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 Thursday. momondo users have found tickets for Thursday departures for as low as £580. 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 £624.

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 £585. 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 £593. 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.

Fastest flight time	11h 25m
Direct flights	None

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 June 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 £459	Free Cancellation	Rating 7.3 1,628 reviews		Search Aer Lingus flights

Alexandria

College Park

Springfield

Fairfax

Arlington

Gettysburg

Linthicum Heights

National Harbor

Ellicott City

Cambridge

Glen Burnie

Westminster

Laurel

Lutherville Timonium

Lexington Park

Owings Mills

Woodbridge

Bethesda

Silver Spring

Rockville

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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Feeling lucky

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 £354

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 7/9. 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 Southampton to Washington, D.C.

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

Aer Lingus flights from Southampton to Washington, D.C.

Our best Aer Lingus 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

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

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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