Cheap flights from Southampton to Washington, D.C. from £575

This is the cheapest return 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 15/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
09:00 - 20:28
SOU
-
BWI
16h 28m2 stops
Delta Logo
10:33 - 08:25
BWI
-
SOU
16h 52m2 stops
£575Delta
Thu, 15 Jan - Wed, 28 Jan
British Airways Logo
16:05 - 15:35
SOU
-
IAD
28h 30m1 stop
British Airways Logo
17:05 - 11:55
IAD
-
SOU
13h 50m1 stop
£842British Airways
Thu, 5 Feb - Mon, 9 Feb
British Airways Logo
08:40 - 15:35
SOU
-
IAD
35h 55m2 stops
British Airways Logo
17:05 - 11:55
IAD
-
SOU
13h 50m1 stop
£856British Airways
Thu, 5 Feb - Mon, 9 Feb
British Airways Logo
08:40 - 15:35
SOU
-
IAD
35h 55m2 stops
British Airways Logo
17:05 - 11:55
IAD
-
SOU
13h 50m1 stop
£857British Airways
Thu, 5 Feb - Mon, 9 Feb
British Airways Logo
08:40 - 19:55
SOU
-
IAD
16h 15m2 stops
British Airways Logo
21:45 - 20:00
IAD
-
SOU
17h 15m2 stops
£884British Airways
Thu, 5 Feb - Mon, 9 Feb
British Airways Logo
08:40 - 18:45
SOU
-
BWI
39h 05m2 stops
British Airways Logo
20:35 - 20:00
BWI
-
SOU
18h 25m2 stops
£913British Airways
Thu, 5 Feb - Sun, 8 Feb
British Airways Logo
08:40 - 18:45
SOU
-
BWI
39h 05m2 stops
British Airways Logo
20:35 - 16:05
BWI
-
SOU
14h 30m2 stops
£914British Airways
Thu, 5 Feb - Sun, 8 Feb
Multiple Airlines Logo
09:10 - 15:50
SOU
-
IAD
11h 40m1 stop
Multiple Airlines Logo
20:25 - 16:35
IAD
-
SOU
15h 10m1 stop
£999Multiple Airlines
Fri, 24 Apr - Fri, 24 Apr
Multiple Airlines Logo
09:10 - 15:50
SOU
-
IAD
11h 40m1 stop
Multiple Airlines Logo
20:45 - 08:25
IAD
-
SOU
30h 40m3 stops
£1,071Multiple Airlines
Fri, 24 Apr - Fri, 24 Apr
Aer Lingus Logo
09:10 - 15:50
SOU
-
IAD
11h 40m1 stop
Aer Lingus Logo
22:20 - 08:25
IAD
-
SOU
29h 05m2 stops
£1,212Aer Lingus
Fri, 24 Apr - Fri, 24 Apr

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

Our best British Airways deals on Southampton to Washington, D.C. flight tickets
British Airways
5 Feb
SOU16:05Southampton Eastleigh
28h 30m
1 stop
IAD15:35Washington, D.C. Dulles Intl
9 Feb
IAD17:05Washington, D.C. Dulles Intl
13h 50m
1 stop
SOU11:55Southampton Eastleigh
British Airways
5 Feb
SOU20:10Southampton Eastleigh
24h 25m
1 stop
IAD15:35Washington, D.C. Dulles Intl
9 Feb
IAD17:05Washington, D.C. Dulles Intl
13h 50m
1 stop
SOU11:55Southampton Eastleigh
British Airways
5 Feb
SOU08:40Southampton Eastleigh
35h 55m
2 stops
IAD15:35Washington, D.C. Dulles Intl
9 Feb
IAD17:05Washington, D.C. Dulles Intl
13h 50m
1 stop
SOU11:55Southampton Eastleigh

momondo Fare Finder

 
Customise your flight search to find flights from Southampton to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 11 December 2025.
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

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 15/1

09:00-20:28

2 stops16h 28m

Baltimore/Washington

Wed 28/1

10:33-08:25

2 stops16h 52m

£575

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 5/2

16:05-15:35

1 stop28h 30m

Washington, D.C. Dulles Intl

Mon 9/2

17:05-11:55

1 stop13h 50m

£842

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 5/2

08:40-15:35

2 stops35h 55m

Washington, D.C. Dulles Intl

Mon 9/2

17:05-11:55

1 stop13h 50m

£856

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 5/2

08:40-15:35

2 stops35h 55m

Washington, D.C. Dulles Intl

Mon 9/2

17:05-11:55

1 stop13h 50m

£857

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 5/2

08:40-19:55

2 stops16h 15m

Washington, D.C. Dulles Intl

Mon 9/2

21:45-20:00

2 stops17h 15m

£884

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 5/2

08:40-18:45

2 stops39h 05m

Baltimore/Washington

Sun 8/2

20:35-20:00

2 stops18h 25m

£913

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 5/2

08:40-18:45

2 stops39h 05m

Baltimore/Washington

Sun 8/2

20:35-16:05

2 stops14h 30m

£914

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 24/4

09:10-15:50

1 stop11h 40m

Washington, D.C. Dulles Intl

Fri 24/4

20:25-16:35

1 stop15h 10m

£999

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 24/4

09:10-15:50

1 stop11h 40m

Washington, D.C. Dulles Intl

Fri 24/4

20:45-08:25

3 stops30h 40m

£1,071

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 24/4

09:10-15:50

1 stop11h 40m

Washington, D.C. Dulles Intl

Fri 24/4

22:20-08:25

2 stops29h 05m

£1,212

Flights are sorted by cheapest return flights first.

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See travel insights to Washington, D.C. from

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

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 £595. 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 £661.

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

In the evening is the cheapest time of day to fly from Southampton to Washington, D.C. when you can find flight prices for as low as £515. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the afternoon, with an average ticket price of £616. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Southampton to Washington, D.C. flights?

You could potentially save up to 39% on your flight if you consider stops on a Southampton to Washington, D.C. flight.

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

12h 05m

Direct flights

None
The fastest flight from Southampton to Washington, D.C. takes 12h 05m
There are no direct flights from Southampton to Washington, D.C.. There are no popular flight routes 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 12h 05m 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 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.

  • What is the most popular airline from Southampton to Washington, D.C.?

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
College Park
Alexandria
Fairfax
Arlington
Linthicum Heights
Bethesda
Glen Burnie
Lutherville Timonium
Ellicott City
Cambridge
Westminster
Woodbridge
Silver Spring
Owings Mills
National Harbor

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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1 adult
Sat 10/1
Sat 17/1

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.