Gunnison (GUC) to Denver (DEN): On-Time Performance
Data through May 2026
Gunnison (GUC) to Denver (DEN) effectively runs on two schedules. In September 2024, 97% of arrivals were on time; in July 2025 that fell to 57% — a 40-point seasonal swing. Across the full period the route averages 81% on-time against a national 78%.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 2.7
- last 12 months
- Duration
- 1h 21m
- scheduled
- Distance
- 152 mi
Monthly on-time trend
Best time to fly from GUC to DEN
Aim for departures around 1 p.m. (87% on-time); avoid 3 p.m. departures (68%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 18 min |
| Tuesday | 80% | 15 min |
| Wednesdaybest | 85% | 15 min |
| Thursday | 81% | 12 min |
| Friday | 81% | 17 min |
| Saturday | 76% | 19 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 aircraft18%
- Airline operations49%
- National airspace system24%
- Weather9%
Frequently asked questions
- How often are flights from GUC to DEN delayed?
- 19% of GUC–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 16 minutes.
- What is the best time of day to fly from GUC to DEN?
- Departures around 1 p.m. have the best record (87% on-time), while departures around 3 p.m. have the worst (68%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from GUC to DEN?
- The scheduled GUC–DEN flight time averages 1h 21m over 152 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are GUC to DEN 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 GUC to DEN?
- July 2025 was the roughest month in this dataset, with only 57% of arrivals on time. The best was September 2024 at 97%. If your dates are flexible, that 40-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.