ASE to DEN flight delays & on-time performance
Nonstop flights from Aspen-Pitkin County Airport (Sardy Field) to Denver International Airport · 125 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ASE or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Aspen (ASE) to Denver (DEN) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 5% were cancelled, and 13% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 7am did best (89% on time); around 3pm did worst (61%).
- Wednesday was the most reliable day to fly (80% on time) and Saturday the least (73%).
- The largest source of delay minutes was late-arriving aircraft (32%).
Which airline is most on time from ASE to DEN?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 76% | 5.0% | 25 min | 13.1% | 2,725 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am89%381 flights
- 8am88%216 flights
- 9am79%159 flights
- 10am86%163 flights
- 11am77%299 flights
- 12pm66%145 flights
- 1pm77%316 flights
- 2pm73%245 flights
- 3pm61%334 flights
- 5pm70%198 flights
- 6pm69%246 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday74%5.0% cancelled
- Tuesday79%4.0% cancelled
- Wednesday80%4.3% cancelled
- Thursday75%3.6% cancelled
- Friday77%6.6% cancelled
- Saturday73%7.1% cancelled
- Sunday76%4.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft32%
- Extreme weather24%
- Air traffic control & airport congestion24%
- Airline (crew, maintenance, cleaning, fueling)19%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather88%
- Air traffic control & airport congestion10%
- Airline (crew, maintenance, cleaning, fueling)1%
- Security0%
ASE to DEN: common questions
- How often are ASE to DEN flights on time?
- 76% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Aspen to Denver cancelled?
- 5.0% of scheduled flights were cancelled (136 of 2,725).
- How long are typical delays?
- Across all flights the average arrival delay was 25 min (early arrivals count as zero). Flights that were late arrived 104 min behind schedule on average, and 13.1% of flights were an hour or more late.
- How long is taxi time at ASE?
- Flights on this route spent 24 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEN to ASE — 75% on time
More flights from Aspen
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ASE → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.