Aspen (ASE) to Denver (DEN): On-Time Performance
Data through May 2026
Aspen (ASE) to Denver (DEN) has an unusually high scrub rate — 5.1% of scheduled departures never left the gate, a cancellation rate several times the national figure. When flights do go, 74% land on time, below the national average of 78%.
- On-time
- 74%
- arrived <15 min late
- Avg delay
- 24 min
- completed flights
- Cancelled
- 5.1%
- Flights/day
- 7.4
- last 12 months
- Duration
- 1h 13m
- scheduled
- Distance
- 125 mi
Monthly on-time trend
Best time to fly from ASE to DEN
Aim for departures around 10 a.m. (85% on-time); avoid 3 p.m. departures (61%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 70% | 25 min |
| Tuesday | 79% | 18 min |
| Wednesdaybest | 79% | 18 min |
| Thursday | 75% | 26 min |
| Friday | 72% | 26 min |
| Saturday | 72% | 27 min |
| Sunday | 70% | 29 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft26%
- Airline operations25%
- National airspace system30%
- Weather19%
Frequently asked questions
- How often are flights from ASE to DEN delayed?
- 26% of ASE–DEN flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 24 minutes.
- What is the best time of day to fly from ASE to DEN?
- Departures around 10 a.m. have the best record (85% on-time), while departures around 3 p.m. have the worst (61%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ASE to DEN?
- The scheduled ASE–DEN flight time averages 1h 13m over 125 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
- How often are ASE to DEN flights cancelled?
- 5.1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from ASE to DEN?
- June 2025 was the roughest month in this dataset, with only 50% of arrivals on time. The best was May 2026 at 88%. If your dates are flexible, that 38-point gap is worth planning around.
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Based on 5,581 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.