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Dulles Intl

$251+ Cheap flights from Aspen (ASE) 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — IAD
Feb 23 — Mar 21
Mon 2/23
Mon 3/2
1 adult, Economy
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Cheap flight deals from Aspen to Dulles Intl

Cheapest flights from Aspen to Dulles Intl
Explore the most affordable flight options available from Aspen to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 24, 2026.

This United Airlines deal was found by Cheapflights users on 1/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/147:55 am
ASE
-
IAD
1 stop7h 05m
United Airlines
Sat 2/215:10 pm
IAD
-
ASE
1 stop6h 24m
United Airlines
Deal found 1/24$381
This United Airlines deal was found by Cheapflights users on 1/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/212:22 pm
ASE
-
IAD
1 stop6h 31m
United Airlines
Sun 3/86:15 am
IAD
-
ASE
1 stop7h 26m
United Airlines
Deal found 1/24$437
This United Airlines deal was found by Cheapflights users on 1/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/41:33 pm
ASE
-
IAD
1 stop7h 49m
United Airlines
Sat 2/72:24 pm
IAD
-
ASE
1 stop7h 51m
United Airlines
Deal found 1/22$509
This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/142:47 pm
ASE
-
IAD
1 stop6h 06m
American Airlines
Sat 2/212:03 pm
IAD
-
ASE
2 stops9h 10m
American Airlines
Deal found 1/24$576
This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:47 pm
ASE
-
IAD
1 stop6h 06m
American Airlines
Sun 3/86:00 am
IAD
-
ASE
1 stop8h 09m
American Airlines
Deal found 1/24$623
This United Airlines deal was found by Cheapflights users on 1/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/233:29 pm
ASE
-
IAD
1 stop5h 51m
United Airlines
Fri 3/276:15 am
IAD
-
ASE
1 stop7h 26m
United Airlines
Deal found 1/23$1,687

Find flight deals from Aspen to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Aspen (ASE) 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 January 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$449
(United Airlines)

One-way from

$371
(United Airlines)

Popular in

January

Cheapest in

December

Average price

$544
Provider with most accurate pricing for Aspen Pitkin County-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Aspen Pitkin County-Washington, D.C. (WAS) flights.
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From Aspen Pitkin County to Washington, D.C. Dulles Intl
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One-way flight from Aspen Pitkin County to Washington, D.C. Dulles Intl
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High demand for flights, 8% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Aspen 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 January 24, 2026.
Use the filters below to find and compare flights from Aspen to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Aspen

Fly to

Dulles Intl

Route

Depart

Return

Price

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Sat 2/14

7:55 am-5:00 pm

1 stop7h 05m

Washington, D.C. Dulles Intl

Sat 2/21

5:10 pm-9:34 pm

1 stop6h 24m

$381

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Mon 3/2

12:22 pm-8:53 pm

1 stop6h 31m

Washington, D.C. Dulles Intl

Sun 3/8

6:15 am-11:41 am

1 stop7h 26m

$437

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Wed 2/4

1:33 pm-11:22 pm

1 stop7h 49m

Washington, D.C. Dulles Intl

Sat 2/7

2:24 pm-8:15 pm

1 stop7h 51m

$509

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Sat 2/14

2:47 pm-10:53 pm

1 stop6h 06m

Washington, D.C. Dulles Intl

Sat 2/21

2:03 pm-9:13 pm

2 stops9h 10m

$576

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Mon 3/2

2:47 pm-10:53 pm

1 stop6h 06m

Washington, D.C. Dulles Intl

Sun 3/8

6:00 am-12:09 pm

1 stop8h 09m

$623

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Mon 3/23

3:29 pm-11:20 pm

1 stop5h 51m

Washington, D.C. Dulles Intl

Fri 3/27

6:15 am-11:41 am

1 stop7h 26m

$1,687

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Fri 1/30

3:25 pm-11:22 pm

1 stop5h 57m

$371

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Fri 1/30

10:52 am-11:12 pm

2 stops10h 20m

$421

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Sat 1/31

7:30 am-4:31 pm

1 stop7h 01m

$421

AspenWashington, D.C.

ASE - IAD

ASEIAD

Aspen Pitkin County

Sun 3/8

6:28 pm-11:30 am

1 stop15h 02m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 15 results
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Best time to book a flight from Aspen to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Aspen 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 Aspen to Washington, D.C. Dulles Intl Airport

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

Currently, April is the cheapest month in which you can book a flight from Aspen to Washington, D.C. Dulles Intl Airport (average of $260). Flying from Aspen to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $537). 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 Aspen 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 Aspen to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Aspen, you will be flying from Pitkin County, which is the city’s only airport. Aspen Pitkin County (ASE) is located 3.5 mi from the center of Aspen. There are 0 flights from Pitkin County to Washington, D.C. Dulles Intl per day from 0 different airlines.

  • How long is the flight from Aspen to Washington, D.C. Dulles Intl Airport?

    A quick flight from Aspen to Washington, D.C. Dulles Intl Airport can take about 6h 06m. United Airlines provides one of the quickest options available for as low as $504. Airlines will cover a distance of 1570 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Aspen 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 Aspen to Washington, D.C. Dulles Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Aspen to Washington, D.C. Dulles Intl Airport (average of $260). Flying from Aspen to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $537). 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
Owings Mills
Springfield
Silver Spring
Hanover
Herndon
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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