Denver (DEN) to Aspen (ASE): On-Time Performance
Data through July 2026
Denver (DEN) to Aspen (ASE) has an unusually high scrub rate — 4.9% of scheduled departures never left the gate, a cancellation rate several times the national figure. When flights do go, 73% land on time, below the national average of 78%.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 27 min
- completed flights
- Cancelled
- 4.9%
- Flights/day
- 7.5
- last 12 months
- Duration
- 1h 3m
- scheduled
- Distance
- 125 mi
Monthly on-time trend
Best time to fly from DEN to ASE
Aim for departures around 7 a.m. (85% on-time); avoid 12 p.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 72% | 21 min |
| Tuesday | 77% | 23 min |
| Wednesdaybest | 79% | 26 min |
| Thursday | 70% | 26 min |
| Friday | 73% | 25 min |
| Saturday | 69% | 28 min |
| Sunday | 68% | 37 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 system29%
- Weather20%
Frequently asked questions
- How often are flights from DEN to ASE delayed?
- 27% of DEN–ASE flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 27 minutes.
- What is the best time of day to fly from DEN to ASE?
- Departures around 7 a.m. have the best record (85% on-time), while departures around 12 p.m. have the worst (66%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DEN to ASE?
- The scheduled DEN–ASE flight time averages 1h 3m over 125 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are DEN to ASE flights cancelled?
- 4.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from DEN to ASE?
- June 2025 was the roughest month in this dataset, with only 55% of arrivals on time. The best was May 2025 at 91%. If your dates are flexible, that 36-point gap is worth planning around.
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Based on 5,827 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.