FlightRecord

Denver (DEN) to Aspen (ASE): On-Time Performance

Data through May 2026

Denver (DEN) to Aspen (ASE) 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 3m
scheduled
Distance
125 mi

Monthly on-time trend

Monthly on-time percentage for DEN to ASE flights50%75%100%June 2024: 77% on-time (240 flights)77Jun 2024July 2024: 76% on-time (245 flights)76August 2024: 71% on-time (248 flights)71September 2024: 80% on-time (240 flights)80Sep 2024October 2024: 85% on-time (248 flights)85November 2024: 72% on-time (235 flights)72December 2024: 75% on-time (275 flights)75Dec 2024January 2025: 73% on-time (285 flights)73February 2025: 67% on-time (264 flights)67March 2025: 72% on-time (302 flights)72Mar 2025April 2025: 78% on-time (250 flights)78May 2025: 91% on-time (32 flights)91June 2025: 55% on-time (234 flights)55Jun 2025July 2025: 58% on-time (245 flights)58August 2025: 62% on-time (244 flights)62September 2025: 79% on-time (226 flights)79Sep 2025October 2025: 82% on-time (210 flights)82November 2025: 87% on-time (179 flights)87December 2025: 63% on-time (270 flights)63Dec 2025January 2026: 79% on-time (250 flights)79February 2026: 73% on-time (254 flights)73March 2026: 84% on-time (310 flights)84Mar 2026April 2026: 85% on-time (218 flights)85May 2026: 83% on-time (77 flights)83

Best time to fly from DEN to ASE

Aim for departures around 7 a.m. (85% on-time); avoid 12 p.m. departures (66%).

On-time percentage by scheduled departure hour, DEN to ASE7 a.m.: 85% on-time (317 flights)78 a.m.: 81% on-time (265 flights)89 a.m.: 78% on-time (606 flights)910 a.m.: 82% on-time (133 flights)1011 a.m.: 70% on-time (642 flights)1112 p.m.: 66% on-time (154 flights)121 p.m.: 71% on-time (706 flights)132 p.m.: 29% on-time (25 flights)143 p.m.: 75% on-time (458 flights)154 p.m.: 78% on-time (305 flights)165 p.m.: 71% on-time (667 flights)177 p.m.: 70% on-time (675 flights)198 p.m.: 77% on-time (623 flights)20scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday73%20 min
Tuesday79%20 min
Wednesdaybest81%23 min
Thursday72%24 min
Friday73%26 min
Saturday71%24 min
Sunday71%31 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft25%
  • Airline operations26%
  • National airspace system31%
  • Weather18%

Frequently asked questions

How often are flights from DEN to ASE delayed?
26% of DEN–ASE 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 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 26% of the time.
How often are DEN to ASE 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 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 5,581 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.