Denver (DEN) to Gunnison (GUC): On-Time Performance
Data through May 2026
When you fly DEN to GUC matters as much as anything else about the booking: the route swung from 94% on-time in September 2024 to just 73% in June 2025. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (87% vs 76%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 2.7
- last 12 months
- Duration
- 1h 9m
- scheduled
- Distance
- 152 mi
Monthly on-time trend
Best time to fly from DEN to GUC
Aim for departures around 11 a.m. (87% on-time); avoid 7 p.m. departures (76%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 84% | 13 min |
| Tuesday | 83% | 16 min |
| Wednesday | 82% | 16 min |
| Thursday | 83% | 25 min |
| Friday | 82% | 21 min |
| Saturday | 82% | 12 min |
| Sunday | 82% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft30%
- Airline operations30%
- National airspace system24%
- Weather17%
Frequently asked questions
- How often are flights from DEN to GUC delayed?
- 18% of DEN–GUC 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 17 minutes.
- What is the best time of day to fly from DEN to GUC?
- Departures around 11 a.m. have the best record (87% on-time), while departures around 7 p.m. have the worst (76%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DEN to GUC?
- The scheduled DEN–GUC flight time averages 1h 9m over 152 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are DEN to GUC flights cancelled?
- 0.8% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from DEN to GUC?
- June 2025 was the roughest month in this dataset, with only 73% of arrivals on time. The best was September 2024 at 94%. If your dates are flexible, that 21-point gap is worth planning around.
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Based on 1,858 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.