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Dulles Intl

$102+ Cheap flights from New Windsor (SWF) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — IAD
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheap flight deals from Stewart to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Stewart (SWF) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$235
(Kiwi.com)

One-way from

$102
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$263
Provider with most accurate pricing for New York (NYC)-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Washington, D.C. (WAS) flights.
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From New Windsor Stewart to Washington, D.C. Dulles Intl
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One-way flight from New Windsor Stewart to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 20% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Stewart to Dulles Intl

Cheapest flights from Stewart to Dulles Intl
Explore the most affordable flight options available from Stewart to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1411:43 amSWF - IAD
1 stop8h 41mMultiple Airlines
Mon 12/299:58 pmIAD - SWF
1 stop13h 05mMultiple Airlines
Deal found 10/26$326
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:16 pmSWF - IAD
2 stops25h 51mAllegiant Air
Mon 11/312:09 pmIAD - SWF
1 stop7h 07mAllegiant Air
Deal found 10/26$454
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:01 pmSWF - IAD
3 stops23h 22mMultiple Airlines
Fri 11/1410:14 amIAD - SWF
1 stop8h 01mMultiple Airlines
Deal found 10/26$553
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:43 amSWF - IAD
1 stop8h 08mMultiple Airlines
Sun 11/98:36 pmIAD - SWF
2 stops15h 08mMultiple Airlines
Deal found 10/26$696
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:17 pmSWF - IAD
3 stops23h 04mMultiple Airlines
Sat 11/298:25 amIAD - SWF
3 stops24h 57mMultiple Airlines
Deal found 10/26$705
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:25 pmSWF - IAD
1 stop14h 52mMultiple Airlines
Sun 11/308:44 amIAD - SWF
1 stop11h 07mMultiple Airlines
Deal found 10/25$745

Cheapflights Fare Finder

 
Customize your flight search to find flights from Stewart to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from New Windsor to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Stewart

Fly to

Dulles Intl

Route

Depart

Return

Price

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Fri 1/9

12:11 pm-8:48 am

2 stops20h 37m

Washington, D.C. Dulles Intl

Sat 1/17

10:23 pm-11:08 am

1 stop12h 45m

$235

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Mon 1/12

11:09 am-11:45 am

2 stops24h 36m

Washington, D.C. Dulles Intl

Sat 1/17

10:23 pm-11:08 am

1 stop12h 45m

$247

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Thu 1/15

11:48 am-9:33 pm

1 stop9h 45m

Washington, D.C. Dulles Intl

Sun 1/18

5:37 pm-10:19 am

2 stops16h 42m

$258

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Sun 1/11

11:48 am-11:38 am

2 stops23h 50m

Washington, D.C. Dulles Intl

Sat 1/17

10:23 pm-11:08 am

1 stop12h 45m

$263

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Sun 1/11

11:48 am-2:38 pm

1 stop26h 50m

Washington, D.C. Dulles Intl

Sun 1/18

5:37 pm-10:19 am

2 stops16h 42m

$286

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Sun 12/14

11:43 am-8:24 pm

1 stop8h 41m

Washington, D.C. Dulles Intl

Mon 12/29

9:58 pm-11:03 am

1 stop13h 05m

$326

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Sun 1/11

11:48 am-2:38 pm

1 stop26h 50m

Washington, D.C. Dulles Intl

Thu 1/15

5:37 pm-10:19 am

2 stops16h 42m

$340

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Sun 2/22

11:52 am-11:23 am

3 stops23h 31m

Washington, D.C. Dulles Intl

Wed 2/25

8:25 am-11:02 am

3 stops26h 37m

$412

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Mon 11/10

12:01 pm-11:23 am

3 stops23h 22m

Washington, D.C. Dulles Intl

Fri 11/14

10:14 am-6:15 pm

1 stop8h 01m

$553

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Thu 11/6

11:43 am-7:51 pm

1 stop8h 08m

Washington, D.C. Dulles Intl

Sun 11/9

8:36 pm-11:44 am

2 stops15h 08m

$696

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 20 results
1
2

Best time to book a flight from Stewart to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Stewart with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New Windsor to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from New Windsor to Washington, D.C. Dulles Intl Airport?

Currently, March is the cheapest month in which you can book a flight from New Windsor to Washington, D.C. Dulles Intl Airport (average of $48). Flying from New Windsor to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $197). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Stewart to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from New Windsor to Washington, D.C. Dulles Intl?

    For a flight from New Windsor to Washington, D.C. Dulles Intl, you will be flying from Stewart. New Windsor Stewart (SWF) is just 4.3 mi from the center of the city. Stewart is the only New Windsor airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 0 airlines have flights to Washington, D.C. Dulles Intl from New Windsor Stewart on a regular basis.

  • Can I find deals for flights from Stewart to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Stewart to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Stewart to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stewart to Dulles Intl.

  • Can I find deals for business class flights from Stewart to Dulles Intl?

    Yes. Cheapflights offers flight deals from Stewart to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from New Windsor to Washington, D.C. Dulles Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from New Windsor to Washington, D.C. Dulles Intl Airport (average of $48). Flying from New Windsor to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $197). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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Alternative routes for Stewart to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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