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Cheap flights from Southampton to Washington, D.C. from £574

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 - 16:05
SOU
-
IAD
12h 05m1 stop
Delta Logo
19:30 - 17:05
IAD
-
SOU
16h 35m2 stops
£574Delta
Thu, 15 Jan - Wed, 28 Jan
Delta Logo
09:00 - 19:09
SOU
-
IAD
15h 09m2 stops
Delta Logo
12:32 - 08:25
IAD
-
SOU
14h 53m2 stops
£579Delta
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 - 15:35
IAD
-
SOU
17h 30m1 stop
£857British 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
20:10 - 15:35
SOU
-
IAD
24h 25m1 stop
British Airways Logo
17:05 - 08:45
IAD
-
SOU
10h 40m1 stop
£858British Airways
Thu, 15 Jan - Wed, 28 Jan
British Airways Logo
08:40 - 19:55
SOU
-
IAD
16h 15m2 stops
British Airways Logo
21:45 - 16:00
IAD
-
SOU
13h 15m2 stops
£884British 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 - 19:55
SOU
-
IAD
16h 15m2 stops
British Airways Logo
17:05 - 15:35
IAD
-
SOU
17h 30m1 stop
£924British Airways
Wed, 24 Dec - Thu, 15 Jan
British Airways Logo
08:40 - 19:55
SOU
-
IAD
16h 15m2 stops
British Airways Logo
17:05 - 15:35
IAD
-
SOU
17h 30m1 stop
£954British Airways
Wed, 24 Dec - Sat, 17 Jan

British Airways flights from Southampton to Washington, D.C. Dulles Intl Airport

Our best British Airways deals on Southampton to Washington, D.C. Dulles Intl Airport 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
£842
Find similar
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
£857
Find similar
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
£857
Find similar

Delta flights from Southampton to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Southampton to Washington, D.C. Dulles Intl Airport flight tickets
Delta
15 Jan
SOU09:00Southampton Eastleigh
12h 05m
1 stop
IAD16:05Washington, D.C. Dulles Intl
28 Jan
IAD19:30Washington, D.C. Dulles Intl
16h 35m
2 stops
SOU17:05Southampton Eastleigh
£574
Find similar
Delta
15 Jan
SOU09:00Southampton Eastleigh
15h 09m
2 stops
IAD19:09Washington, D.C. Dulles Intl
28 Jan
IAD12:32Washington, D.C. Dulles Intl
14h 53m
2 stops
SOU08:25Southampton Eastleigh
£579
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Southampton to Washington, D.C. Dulles Intl Airport 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 10 December 2025.
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

Thu 15/1

09:00-16:05

1 stop12h 05m

Washington, D.C. Dulles Intl

Wed 28/1

19:30-17:05

2 stops16h 35m

£574

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 15/1

09:00-19:09

2 stops15h 09m

Washington, D.C. Dulles Intl

Wed 28/1

12:32-08:25

2 stops14h 53m

£579

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

17:05-15:35

1 stop17h 30m

£857

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 15/1

20:10-15:35

1 stop24h 25m

Washington, D.C. Dulles Intl

Wed 28/1

17:05-08:45

1 stop10h 40m

£858

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

21:45-16:00

2 stops13h 15m

£884

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

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 24/12

08:40-19:55

2 stops16h 15m

Washington, D.C. Dulles Intl

Thu 15/1

17:05-15:35

1 stop17h 30m

£924

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 24/12

08:40-19:55

2 stops16h 15m

Washington, D.C. Dulles Intl

Sat 17/1

17:05-15:35

1 stop17h 30m

£954

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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. Dulles Intl Airport

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. Dulles Intl Airport?

According to our data, Thursday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Southampton. The lowest ticket price found for a Thursday departure recently was £595. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. 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. Dulles Intl Airport?

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is in the evening when flights can be purchased for as low as £532. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the afternoon when prices are around £617.

When to book flights from Southampton to Washington, D.C. Dulles Intl Airport

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

Cheap Southampton to Washington, D.C. Dulles Intl Airport (SOU to IAD) flight deals and tips

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

Fastest flight time

12h 05m

Direct flights

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

  • How far is Southampton Eastleigh to Washington, D.C. Dulles Intl by plane?

    The distance between Southampton Eastleigh and Washington, D.C. Dulles Intl is about 3637.8 mi. By plane, this route typically takes 11h 40m.

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

    Prices for flights from Southampton Eastleigh Airport to Washington, D.C. Dulles Intl Airport refresh daily.

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

    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. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl 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 Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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
Front Royal
Lutherville Timonium
Winchester
Ellicott City
Cambridge
Westminster
Woodbridge
Ashburn
Sterling
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.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Southampton to Washington, D.C. for you.

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

momondo does allow users to show only those flights to Washington, D.C. from Southampton which offer a flexible booking policy as well as other useful filters and features.

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

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 Southampton to Washington, D.C..

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.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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