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Cheap flights from Southampton to Washington, D.C. from £495

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 4/12. 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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Cheap return flights

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Aer Lingus Logo
09:30 - 19:30SOU-IAD
15h 00m1 stop
Aer Lingus Logo
21:00 - 15:35IAD-SOU
13h 35m1 stop
£495Aer Lingus
Find Deal
Thu, 4 Dec - Thu, 11 Dec
Aer Lingus Logo
09:30 - 19:30SOU-IAD
15h 00m1 stop
Aer Lingus Logo
21:00 - 19:40IAD-SOU
17h 40m1 stop
£544Aer Lingus
Find Deal
Sat, 6 Dec - Sat, 13 Dec
Virgin Atlantic Logo
08:50 - 16:05SOU-IAD
12h 15m1 stop
Virgin Atlantic Logo
19:59 - 08:50IAD-SOU
31h 51m2 stops
£590Virgin Atlantic
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Thu, 4 Dec - Thu, 11 Dec
Virgin Atlantic Logo
08:40 - 16:05SOU-IAD
12h 25m1 stop
Virgin Atlantic Logo
18:05 - 08:50IAD-SOU
9h 45m1 stop
£609Virgin Atlantic
Find Deal
Fri, 5 Dec - Fri, 12 Dec
Virgin Atlantic Logo
08:40 - 00:12SOU-IAD
20h 32m2 stops
Virgin Atlantic Logo
18:05 - 08:50IAD-SOU
9h 45m1 stop
£613Virgin Atlantic
Find Deal
Fri, 5 Dec - Fri, 12 Dec
Virgin Atlantic Logo
09:20 - 15:35SOU-IAD
11h 15m1 stop
Virgin Atlantic Logo
06:00 - 17:00IAD-SOU
30h 00m2 stops
£740Virgin Atlantic
Find Deal
Wed, 1 Apr - Sun, 5 Apr
Virgin Atlantic Logo
17:35 - 21:13SOU-IAD
32h 38m2 stops
Virgin Atlantic Logo
12:30 - 08:50IAD-SOU
39h 20m2 stops
£744Virgin Atlantic
Find Deal
Wed, 1 Apr - Sun, 5 Apr
Virgin Atlantic Logo
09:20 - 15:35SOU-IAD
11h 15m1 stop
Virgin Atlantic Logo
19:59 - 08:50IAD-SOU
31h 51m2 stops
£751Virgin Atlantic
Find Deal
Wed, 1 Apr - Sun, 5 Apr
Virgin Atlantic Logo
09:20 - 15:35SOU-IAD
11h 15m1 stop
Virgin Atlantic Logo
06:10 - 17:00IAD-SOU
29h 50m2 stops
£753Virgin Atlantic
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Wed, 1 Apr - Sun, 5 Apr
Multiple Airlines Logo
09:30 - 19:30SOU-IAD
15h 00m2 stops
Multiple Airlines Logo
21:45 - 08:45IAD-SOU
30h 00m2 stops
£795Multiple Airlines
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Sat, 6 Dec - Sat, 13 Dec

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

Our best Aer Lingus deals on Southampton to Washington, D.C. Dulles Intl Airport flight tickets
Aer Lingus
4 Dec
SOU09:30Southampton Eastleigh
15h 00m
1 stop
IAD19:30Washington, D.C. Dulles Intl
11 Dec
IAD21:00Washington, D.C. Dulles Intl
13h 35m
1 stop
SOU15:35Southampton Eastleigh
£495
Find similar
Aer Lingus
6 Dec
SOU09:30Southampton Eastleigh
15h 00m
1 stop
IAD19:30Washington, D.C. Dulles Intl
13 Dec
IAD21:00Washington, D.C. Dulles Intl
17h 40m
1 stop
SOU19:40Southampton Eastleigh
£544
Find similar

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

Our best Virgin Atlantic deals on Southampton to Washington, D.C. Dulles Intl Airport flight tickets
Virgin Atlantic
4 Dec
SOU08:50Southampton Eastleigh
12h 15m
1 stop
IAD16:05Washington, D.C. Dulles Intl
11 Dec
IAD19:59Washington, D.C. Dulles Intl
31h 51m
2 stops
SOU08:50Southampton Eastleigh
£590
Find similar
Virgin Atlantic
5 Dec
SOU08:40Southampton Eastleigh
12h 25m
1 stop
IAD16:05Washington, D.C. Dulles Intl
12 Dec
IAD18:05Washington, D.C. Dulles Intl
9h 45m
1 stop
SOU08:50Southampton Eastleigh
£609
Find similar
Virgin Atlantic
5 Dec
SOU08:40Southampton Eastleigh
20h 32m
2 stops
IAD00:12Washington, D.C. Dulles Intl
12 Dec
IAD18:05Washington, D.C. Dulles Intl
9h 45m
1 stop
SOU08:50Southampton Eastleigh
£613
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 23 October 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 4/12

09:30-19:30

1 stop15h 00m

Washington, D.C. Dulles Intl

Thu 11/12

21:00-15:35

1 stop13h 35m

£495

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Sat 6/12

09:30-19:30

1 stop15h 00m

Washington, D.C. Dulles Intl

Sat 13/12

21:00-19:40

1 stop17h 40m

£544

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 4/12

08:50-16:05

1 stop12h 15m

Washington, D.C. Dulles Intl

Thu 11/12

19:59-08:50

2 stops31h 51m

£590

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 5/12

08:40-16:05

1 stop12h 25m

Washington, D.C. Dulles Intl

Fri 12/12

18:05-08:50

1 stop9h 45m

£609

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 5/12

08:40-00:12

2 stops20h 32m

Washington, D.C. Dulles Intl

Fri 12/12

18:05-08:50

1 stop9h 45m

£613

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 1/4

09:20-15:35

1 stop11h 15m

Washington, D.C. Dulles Intl

Sun 5/4

06:00-17:00

2 stops30h 00m

£740

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 1/4

17:35-21:13

2 stops32h 38m

Washington, D.C. Dulles Intl

Sun 5/4

12:30-08:50

2 stops39h 20m

£744

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 1/4

09:20-15:35

1 stop11h 15m

Washington, D.C. Dulles Intl

Sun 5/4

19:59-08:50

2 stops31h 51m

£751

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 1/4

09:20-15:35

1 stop11h 15m

Washington, D.C. Dulles Intl

Sun 5/4

06:10-17:00

2 stops29h 50m

£753

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Sat 6/12

09:30-19:30

2 stops15h 00m

Washington, D.C. Dulles Intl

Sat 13/12

21:45-08:45

2 stops30h 00m

£795

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, Wednesday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Southampton. The lowest ticket price found for a Wednesday departure recently was £607. 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 £684.

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 £530. 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 £640.

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

Direct flights

None
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.
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  • 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 15m.

  • 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
Linthicum Heights
Bethesda
Gettysburg
Front Royal
Cambridge
Winchester
Ellicott City
Westminster
Arlington
Ashburn
Woodbridge
Owings Mills
Sterling
Silver Spring
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.

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