$147 Cheap Flights from Washington (IAD) to Aspen (ASE)

View $147 flight on Sun, Jun 15, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Aspen/Pitkin County Airport (ASE)

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Find available prices by choosing your travel dates.

Cheap Flights from Washington to Aspen (IAD-ASE)

Prices were available within the past 7 days and start at $147 for one-way flights and $244 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Jun 2 - Thu, Jun 5
IAD
Washington
ASE
Aspen
$244 Roundtrip, found 1 day ago
$244
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jun 2 from Washington to Aspen, returning Thu, Jun 5, priced at $244 found 1 day ago
Delta
Tue, Jun 10 - Fri, Jun 20
IAD
Washington
ASE
Aspen
$257 Roundtrip, found 1 day ago
$257
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jun 10 from Washington to Aspen, returning Fri, Jun 20, priced at $257 found 1 day ago
United
Sat, Jun 14 - Fri, Jun 20
IAD
Washington
ASE
Aspen
$259 Roundtrip, found 4 days ago
$259
Roundtrip
found 4 days ago
Select United flight, departing Sat, Jun 14 from Washington to Aspen, returning Fri, Jun 20, priced at $259 found 4 days ago
United
Mon, Jun 2 - Thu, Jun 5
IAD
Washington
ASE
Aspen
$264 Roundtrip, found 1 day ago
$264
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jun 2 from Washington to Aspen, returning Thu, Jun 5, priced at $264 found 1 day ago
Delta
Sat, Jun 7 - Fri, Jun 20
IAD
Washington
ASE
Aspen
$265 Roundtrip, found 1 day ago
$265
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jun 7 from Washington to Aspen, returning Fri, Jun 20, priced at $265 found 1 day ago
Delta
Tue, Jun 10 - Wed, Jun 25
IAD
Washington
ASE
Aspen
$272 Roundtrip, found 1 day ago
$272
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jun 10 from Washington to Aspen, returning Wed, Jun 25, priced at $272 found 1 day ago
Delta
Wed, Jun 11 - Mon, Jun 16
IAD
Washington
ASE
Aspen
$274 Roundtrip, found 6 days ago
$274
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jun 11 from Washington to Aspen, returning Mon, Jun 16, priced at $274 found 6 days ago
Delta
Sat, Jun 7 - Wed, Jun 25
IAD
Washington
ASE
Aspen
$280 Roundtrip, found 1 day ago
$280
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jun 7 from Washington to Aspen, returning Wed, Jun 25, priced at $280 found 1 day ago
American Airlines
Tue, Aug 19 - Thu, Aug 28
IAD
Washington
ASE
Aspen
$287 Roundtrip, found 5 days ago
$287
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Aug 19 from Washington to Aspen, returning Thu, Aug 28, priced at $287 found 5 days ago
Delta
Sun, Jun 15 - Mon, Jun 16
IAD
Washington
ASE
Aspen
$290 Roundtrip, found 2 days ago
$290
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Jun 15 from Washington to Aspen, returning Mon, Jun 16, priced at $290 found 2 days ago
Flights from Washington (IAD) to Aspen (ASE)
Origin airport
Washington Dulles Intl.
Destination airport
Pitkin County
Airlines serving
American Airlines, Delta, United
Roundtrip price
$243
Distance
1570 mi

Washington to Aspen Flights

The cheapest times to fly from Washington to Aspen

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Aspen are during the month of June. You can find some of the cheapest flights from Washington to Aspen with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Washington to Aspen

Sunday is one of the best days to book for cheap flights from Washington to Aspen: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Washington to Aspen

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Aspen in 2025. You can also book with separate airlines for your outbound and return journeys, from $147 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Aspen flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Aspen airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Pitkin County Airport (ASE) cost?
Discover the latest flight deals from IAD to ASE by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to ASE?
The cheapest flights from IAD to ASE are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAD to ASE?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from IAD to ASE. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Pitkin County Airport (ASE)?
Direct flights from Washington Dulles Intl. Airport (IAD) to Pitkin County Airport (ASE) aren’t available daily, so you’ll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from IAD to ASE?
You’ll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Pitkin County Airport (ASE)?
Choose a flight from Washington Dulles Intl. Airport (IAD) to Pitkin County Airport (ASE) that takes off before 3 PM to reduce the risk of delays and cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Pitkin County Airport (ASE) last-minute?
Last-minute fares from IAD to ASE are typically more expensive. To lock in the cheapest rates, start looking for flights well in advance. That being said, if you’re flexible with your travel plans, you may land a cheap ticket right before you leave.
Is it cheaper to book an IAD to ASE flight and hotel package?
You can save money by securing an IAD to ASE flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s simple to manage it all in one convenient place. After selecting your preferred accommodations and flights, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Pitkin County Airport (ASE)?
Typically, you’re able to cancel or reschedule your IAD to ASE flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline’s fees and policies on flight changes, or if you need more details, visit our Customer Service portal.

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*Available to One Key members.