DEN to ASE flight delays
Denver, CO (DEN) Aspen, CO (ASE) · 125 miles
2,715 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
74.76%
Arrived on time
Within 15 minutes of schedule
5.23%
Cancelled
Share of scheduled flights
96 min
When late, late by
Average across delayed arrivals
25 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Cancellation, not delay, is the risk worth pricing here: 5.23% of scheduled flights never operated. A late flight still gets you there. A cancelled one leaves you rebooking, and on a route with few daily departures that can mean losing a day.
The season swings this route hard. In November it ran 27.7 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Only SkyWest Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from Denver to Aspen run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over January 2025 – August 2026, SkyWest Airlines arrived on time most often on DEN to ASE. Flights ran closest to schedule in November and worst in July.
Every airline on DEN to ASE
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 2,715 | 74.76% | 5.23% | 96 min | D |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ASE to DEN Aspen back to Denver 75.2% on time FOther routes from Denver
Common questions
Are flights from Denver to Aspen usually delayed?
74.76% of flights on the DEN to ASE route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Denver to Aspen?
Only SkyWest Airlines appears in the published record on this route, with 2,715 flights and 74.76% arriving on time.
How often are DEN to ASE flights cancelled?
5.23% of scheduled flights did not operate — about 52 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly Denver to Aspen?
November, when 87.6% of flights arrived on time. The worst was July at 59.9%.
When DEN to ASE flights are late, how late are they?
About 96 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on DEN to ASE during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →