How far in advance should I book a flight from New Windsor to Washington, D.C. Dulles Intl Airport?

To save up to 111% on this flight, we recommend booking at least 55 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from New Windsor to Washington, D.C. Dulles Intl Airport from $298 1-2 weeks out and tickets from $470 for flights departing within the next 72 hours.

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

September is one of the best times of the year to fly to Washington, D.C. Dulles Intl Airport from New Windsor. Prices for September average $250 per person but you can even find prices for as low as $117. The most expensive prices can be found in the month of December. Opting for a September flight can save you 18% on your journey compared to booking in December

What is the cheapest time of day to fly from SWF to IAD?

When flying from New Windsor to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$175+ Save on Flights from New Windsor to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Stewart to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Stewart to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$367 (Mytrip)
One-way from	$175 (Mytrip)
Popular in	December
Cheapest in	September
Average price	$240

Provider with most accurate pricing for New York (NYC)-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for New York (NYC)-Washington, D.C. (WAS) flights.

Search Deals

From New Windsor Stewart to Washington, D.C. Dulles Intl

Search Deals

One-way flight from New Windsor Stewart to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($28 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

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 March 5, 2025.

Mon 4/2810:01 amSWF - IAD

1 stop7h 40mMultiple Airlines

Wed 4/3012:55 pmIAD - SWF

3 stops28h 08mMultiple Airlines

Deal found 3/5

$367

Best flights from Stewart to Dulles Intl
Discover carefully curated flight deals from Stewart to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 5, 2025.

Mon 4/2810:01 amSWF - IAD

1 stop7h 40mMultiple Airlines

Wed 4/3012:55 pmIAD - SWF

3 stops28h 08mMultiple Airlines

Deal found 3/5

$367

Last-minute flights from Stewart to Dulles Intl
Discover last-minute flight deals from Stewart to Dulles Intl. Data last updated March 5, 2025 and is based on user searches.

Mon 3/105:21 pmSWF - IAD

3 stops42h 03mMultiple Airlines

Wed 3/125:40 pmIAD - SWF

2 stops25h 34mMultiple Airlines

Deal found 3/4

$601

Fri 4/2510:01 amSWF - IAD

1 stop7h 40mMultiple Airlines

Sun 4/2712:55 pmIAD - SWF

3 stops20h 16mMultiple Airlines

Deal found 3/3

$426

One-way flights from Stewart to Dulles Intl
Search for one-way flight options from Stewart to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated March 5, 2025.

Wed 4/24:14 pmSWF - IAD

3 stops24h 01mMultiple Airlines

Deal found 3/4

$175

Fri 7/411:19 amSWF - IAD

2 stops33h 39mAllegiant Air

Deal found 3/4

$239

Find flights from Stewart to Dulles Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Mon 4/28

10:01 am-5:41 pm

1 stop7h 40m

Washington, D.C. Dulles Intl

Wed 4/30

12:55 pm-5:03 pm

3 stops28h 08m

$367

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Wed 4/2

4:14 pm-4:15 pm

3 stops24h 01m

$175

New WindsorWashington, D.C.

SWF - IAD

SWFIAD

New Windsor Stewart

Fri 7/4

11:19 am-8:58 pm

2 stops33h 39m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

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.

Travel insights for flights from Stewart to Dulles Intl

Get recent, data-driven insights about flights from Stewart to Dulles Intl including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from New Windsor to Washington, D.C. Dulles Intl Airport (average of $309). Flying from New Windsor to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $388). 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.

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Allegiant Air

7.3

Good

751 reviews

Reviews

1 / 20

10.0

Excellent

Joellen,Aug 2024

LAS - GEG

Boarding was a hassle. I’ve had the same guy before. Never enjoy seeing him.

Allegiant Air

7.3

Good

751 reviews

Allegiant Air

7.3

Good

751 reviews

Reviews

1 / 20

10.0

Excellent

Joellen,Aug 2024

LAS - GEG

Boarding was a hassle. I’ve had the same guy before. Never enjoy seeing him.

Related info for your journey

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, August is the cheapest month in which you can book a flight from New Windsor to Washington, D.C. Dulles Intl Airport (average of $309). Flying from New Windsor to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $388). 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

Arlington

Alexandria

Fairfax

Tysons

Springfield

Rockville

Gaithersburg

Fredericksburg

Silver Spring

Linthicum Heights

Woodbridge

Laurel

Falls Church

Easton

Herndon

Sterling

Bowie

Gettysburg

National Harbor

Oxon Hill

Browse thousands of different options on Cheapflights for your next trip

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$175+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Stewart to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Stewart to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Stewart to Dulles Intl

Cheapest flights from Stewart to Dulles IntlExplore 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 March 5, 2025.

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 March 5, 2025.

Find flights from Stewart to Dulles Intl within your budget

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.

Travel insights for flights from Stewart to Dulles Intl

Get recent, data-driven insights about flights from Stewart to Dulles Intl including ideal travel times, pricing trends, and more.

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

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

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?

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

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

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

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

Traveling to a place near New Windsor?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Stewart to Dulles Intl

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

100% Free

Book with Flexibility

Travel Smart

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 March 5, 2025.