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Aspen

$251+ Cheap flights from Dulles Intl (IAD) to Aspen (ASE)

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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ASE
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Aspen

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Aspen (ASE). 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 September 11, 2025.

Round-trip from

$309
(Delta)

One-way from

$251
(Delta)

Popular in

November

Cheapest in

September

Average price

$480
From Washington, D.C. Dulles Intl to Aspen Pitkin County
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One-way flight from Washington, D.C. Dulles Intl to Aspen Pitkin County
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Highest demand for flights based on searches. 9% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Dulles Intl to Aspen

Cheapest flights from Dulles Intl to Aspen
Explore the most affordable flight options available from Dulles Intl to Aspen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:00 amIAD - ASE
1 stop7h 10mDelta
Tue 10/287:21 amASE - IAD
1 stop7h 36mDelta
Deal found 9/9$309
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 10/2210:25 amIAD - ASE
2 stops10h 34mAmerican Airlines
Tue 10/288:00 amASE - IAD
1 stop6h 47mAmerican Airlines
Deal found 9/9$314
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/256:30 amIAD - ASE
1 stop6h 09mUnited Airlines
Mon 9/2912:40 pmASE - IAD
1 stop6h 15mUnited Airlines
Deal found 9/10$359
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 12/198:15 amIAD - ASE
1 stop9h 15mUnited Airlines
Mon 12/224:15 pmASE - IAD
1 stop6h 00mUnited Airlines
Deal found 9/10$393
This American Airlines deal was found by Cheapflights users on 9/10. 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 11/89:12 amIAD - ASE
2 stops12h 19mAmerican Airlines
Wed 11/1212:25 pmASE - IAD
2 stops8h 42mAmerican Airlines
Deal found 9/10$395
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 12/912:45 pmIAD - ASE
1 stop7h 36mUnited Airlines
Wed 12/1712:40 pmASE - IAD
1 stop6h 38mUnited Airlines
Deal found 9/11$399
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/245:10 pmIAD - ASE
1 stop6h 35mUnited Airlines
Sat 9/2710:00 amASE - IAD
1 stop7h 23mUnited Airlines
Deal found 9/10$408
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/274:00 pmIAD - ASE
1 stop7h 39mUnited Airlines
Sat 10/43:25 pmASE - IAD
1 stop5h 57mUnited Airlines
Deal found 9/9$424
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 12/37:55 amIAD - ASE
2 stops13h 39mAmerican Airlines
Mon 12/87:33 amASE - IAD
1 stop6h 45mAmerican Airlines
Deal found 9/11$435
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 12/96:30 amIAD - ASE
1 stop7h 08mUnited Airlines
Tue 12/236:20 pmASE - IAD
1 stop8h 59mUnited Airlines
Deal found 9/11$438
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 12/1110:10 pmIAD - ASE
1 stop12h 51mUnited Airlines
Fri 12/193:15 pmASE - IAD
1 stop6h 34mUnited Airlines
Deal found 9/11$454

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Aspen 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 September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Aspen that are best for you.

Fly from

Dulles Intl

Fly to

Aspen

Route

Depart

Return

Price

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Wed 10/22

6:00 am-11:10 am

1 stop7h 10m

Aspen Pitkin County

Tue 10/28

7:21 am-4:57 pm

1 stop7h 36m

$309

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Sat 11/8

6:04 am-11:44 am

1 stop7h 40m

Aspen Pitkin County

Wed 11/12

7:34 am-4:11 pm

1 stop6h 37m

$309

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Wed 10/22

10:25 am-6:59 pm

2 stops10h 34m

Aspen Pitkin County

Tue 10/28

8:00 am-4:47 pm

1 stop6h 47m

$314

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Thu 9/25

6:30 am-10:39 am

1 stop6h 09m

Aspen Pitkin County

Mon 9/29

12:40 pm-8:55 pm

1 stop6h 15m

$359

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Tue 12/9

12:45 pm-6:21 pm

1 stop7h 36m

Aspen Pitkin County

Wed 12/17

12:40 pm-9:18 pm

1 stop6h 38m

$399

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Tue 12/9

12:45 pm-6:21 pm

1 stop7h 36m

Aspen Pitkin County

Thu 12/18

12:57 pm-9:25 pm

1 stop6h 28m

$399

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Wed 9/24

5:10 pm-9:45 pm

1 stop6h 35m

Aspen Pitkin County

Sat 9/27

10:00 am-7:23 pm

1 stop7h 23m

$408

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Sat 9/27

4:00 pm-9:39 pm

1 stop7h 39m

Aspen Pitkin County

Sat 10/4

3:25 pm-11:22 pm

1 stop5h 57m

$424

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Fri 10/17

5:15 pm-9:55 pm

1 stop6h 40m

$251

Washington, D.C.Aspen

IAD - ASE

IADASE

Washington, D.C. Dulles Intl

Thu 10/9

6:30 am-11:26 am

1 stop6h 56m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 16 results
1
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Best time to book a flight from Dulles Intl to Aspen

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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Aspen (average of $448). Flying from Washington, D.C. Dulles Intl Airport to Aspen in December is currently the most expensive (average of $662). 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.

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

Find hourly flight availability from Dulles Intl to Aspen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Aspen, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 13% versus a flight at noon.

Reviews of airlines servicing Aspen

Get insights into the airlines that provide service to Aspen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Aspen. Reviews last updated September 11, 2025.
See what other customers who have flown with United Airlines from Washington, D.C. Dulles Intl Airport to Aspen have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Aspen. 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 into for flights to Aspen from Washington, D.C. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to Aspen, you will be flying into Pitkin County. Aspen Pitkin County (ASE) is just 3.5 mi from the center of the city. Pitkin County is the only Aspen airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 1 airline has flights to Aspen Pitkin County from Washington, D.C. Dulles Intl on a regular basis.

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

    A quick flight from Washington, D.C. Dulles Intl Airport to Aspen can take about 7h 10m. Delta provides one of the quickest options available for as low as $309. The distance between Washington, D.C. Dulles Intl Airport and Aspen is about 1570 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Aspen round-trip?

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Aspen round-trip from $331. United Airlines is currently priced 54% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Aspen (average of $448). Flying from Washington, D.C. Dulles Intl Airport to Aspen in December is currently the most expensive (average of $662). 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 Aspen?

Book flights to Aspen if you plan to visit one of these locations
Snowmass Village
Carbondale
Buena Vista
Snowmass

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Alternative routes for Dulles Intl to Aspen

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Top airline flying from Dulles Intl to Aspen

Discover the top airline that operate flights from Dulles Intl to Aspen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$331Average$663FlexibilityNo cancel feeOn-time69%

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