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Cheap flights from Southampton to Washington, D.C. from $475

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 5/29. 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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Find the cheapest flights from Southampton to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
9:25 am - 4:05 pm
SOU
-
IAD
11h 40m1 stop
Virgin Atlantic Logo
6:05 pm - 8:50 am
IAD
-
SOU
9h 45m1 stop
$628Virgin Atlantic
Mon, Feb 2 - Mon, Feb 9
Virgin Atlantic Logo
5:35 pm - 11:43 am
SOU
-
IAD
47h 08m2 stops
Virgin Atlantic Logo
5:26 pm - 5:05 pm
IAD
-
SOU
18h 39m2 stops
$633Virgin Atlantic
Mon, Feb 2 - Mon, Feb 9
Virgin Atlantic Logo
9:25 am - 9:34 pm
SOU
-
DCA
17h 09m2 stops
Virgin Atlantic Logo
1:40 pm - 8:50 am
DCA
-
SOU
14h 10m2 stops
$633Virgin Atlantic
Mon, Feb 2 - Mon, Feb 9
KLM Logo
9:25 am - 10:02 pm
SOU
-
BWI
17h 37m2 stops
KLM Logo
1:02 pm - 8:50 am
BWI
-
SOU
14h 48m2 stops
$665KLM
Mon, Feb 2 - Mon, Feb 9
Delta Logo
9:25 am - 10:48 pm
SOU
-
DCA
18h 23m2 stops
Delta Logo
12:20 pm - 8:50 am
DCA
-
SOU
15h 30m2 stops
$666Delta
Mon, Jan 19 - Sun, Jan 25
British Airways Logo
4:05 pm - 3:35 pm
SOU
-
IAD
28h 30m1 stop
British Airways Logo
5:05 pm - 11:55 am
IAD
-
SOU
13h 50m1 stop
$712British Airways
Thu, Jan 29 - Mon, Feb 2
British Airways Logo
8:10 pm - 3:35 pm
SOU
-
IAD
24h 25m1 stop
British Airways Logo
9:45 pm - 11:45 am
IAD
-
SOU
33h 00m2 stops
$750British Airways
Thu, Jan 29 - Mon, Feb 2
KLM Logo
9:25 am - 7:09 pm
SOU
-
IAD
14h 44m2 stops
KLM Logo
12:40 pm - 8:50 am
IAD
-
SOU
15h 10m2 stops
$877KLM
Mon, Jan 19 - Sun, Jan 25
Multiple Airlines Logo
8:10 pm - 11:47 pm
SOU
-
BWI
32h 37m2 stops
Multiple Airlines Logo
9:26 am - 3:35 pm
BWI
-
SOU
25h 09m3 stops
$966Multiple Airlines
Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
7:55 pm - 2:35 pm
SOU
-
IAD
23h 40m2 stops
Multiple Airlines Logo
9:45 am - 5:30 pm
IAD
-
SOU
26h 45m3 stops
$1,039Multiple Airlines
Mon, Feb 2 - Mon, Feb 9

Virgin Atlantic flights from Southampton to Washington, D.C.

Our best Virgin Atlantic deals on Southampton to Washington, D.C. flight tickets
Virgin Atlantic
Feb 2
SOU9:25 amSouthampton Eastleigh
11h 40m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
Feb 9
IAD6:05 pmWashington, D.C. Dulles Intl
9h 45m
1 stop
SOU8:50 amSouthampton Eastleigh
$628
Find similar
Virgin Atlantic
Feb 2
SOU5:35 pmSouthampton Eastleigh
47h 08m
2 stops
IAD11:43 amWashington, D.C. Dulles Intl
Feb 9
IAD5:26 pmWashington, D.C. Dulles Intl
18h 39m
2 stops
SOU5:05 pmSouthampton Eastleigh
$633
Find similar
Virgin Atlantic
Jan 19
SOU5:35 pmSouthampton Eastleigh
27h 30m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
Jan 25
IAD6:05 pmWashington, D.C. Dulles Intl
18h 00m
1 stop
SOU5:05 pmSouthampton Eastleigh
$647
Find similar

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

Our best British Airways deals on Southampton to Washington, D.C. flight tickets
British Airways
Jan 29
SOU4:05 pmSouthampton Eastleigh
28h 30m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Feb 2
IAD5:05 pmWashington, D.C. Dulles Intl
13h 50m
1 stop
SOU11:55 amSouthampton Eastleigh
$712
Find similar
British Airways
Jan 29
SOU8:10 pmSouthampton Eastleigh
24h 25m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Feb 2
IAD9:45 pmWashington, D.C. Dulles Intl
33h 00m
2 stops
SOU11:45 amSouthampton Eastleigh
$750
Find similar
British Airways
Jan 29
SOU7:00 pmSouthampton Eastleigh
29h 55m
2 stops
IAD7:55 pmWashington, D.C. Dulles Intl
Feb 2
IAD9:45 pmWashington, D.C. Dulles Intl
29h 40m
2 stops
SOU8:25 amSouthampton Eastleigh
$795
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated December 22, 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

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 2/2

9:25 am-4:05 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Mon 2/9

6:05 pm-8:50 am

1 stop9h 45m

$628

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 2/2

5:35 pm-11:43 am

2 stops47h 08m

Washington, D.C. Dulles Intl

Mon 2/9

5:26 pm-5:05 pm

2 stops18h 39m

$633

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Mon 2/2

9:25 am-9:34 pm

2 stops17h 09m

Washington, D.C. Reagan-National

Mon 2/9

1:40 pm-8:50 am

2 stops14h 10m

$633

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Mon 2/2

9:25 am-10:02 pm

2 stops17h 37m

Baltimore/Washington

Mon 2/9

1:02 pm-8:50 am

2 stops14h 48m

$665

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Mon 1/19

9:25 am-10:48 pm

2 stops18h 23m

Washington, D.C. Reagan-National

Sun 1/25

12:20 pm-8:50 am

2 stops15h 30m

$666

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 1/29

4:05 pm-3:35 pm

1 stop28h 30m

Washington, D.C. Dulles Intl

Mon 2/2

5:05 pm-11:55 am

1 stop13h 50m

$712

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 1/29

8:10 pm-3:35 pm

1 stop24h 25m

Washington, D.C. Dulles Intl

Mon 2/2

9:45 pm-11:45 am

2 stops33h 00m

$750

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 1/19

9:25 am-7:09 pm

2 stops14h 44m

Washington, D.C. Dulles Intl

Sun 1/25

12:40 pm-8:50 am

2 stops15h 10m

$877

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Mon 2/2

8:10 pm-11:47 pm

2 stops32h 37m

Baltimore/Washington

Mon 2/9

9:26 am-3:35 pm

3 stops25h 09m

$966

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 2/2

7:55 pm-2:35 pm

2 stops23h 40m

Washington, D.C. Dulles Intl

Mon 2/9

9:45 am-5:30 pm

3 stops26h 45m

$1,039

Flights are sorted by cheapest round-trip 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 $752. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Southampton to Washington, D.C. for around $911.

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 $762. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $852. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 round-trip 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 40m

Direct flights

None
The fastest flight from Southampton to Washington, D.C. takes 11h 40m
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

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

    A flight from Southampton Eastleigh to Washington, D.C. will travel around 3622.6 mi. A reasonable flight in good conditions will take 11h 40m.

  • 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. were last updated today.

  • 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.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Gaithersburg
Reston
Manassas
Fairfax
Glen Burnie
Linthicum Heights
Bethesda

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Southampton to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Washington, D.C. from Southampton on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Southampton to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Southampton to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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

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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.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport