Denver (DEN) to Pierre (PIR): On-Time Performance
Data through July 2026
The calendar drives reliability on DEN–PIR. April 2026 flights landed on schedule 92% of the time, but August 2025 dropped to 57% — a gap of 35 points. Across the full period the route averages 81% on-time against a national 78%.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 21 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 1.8
- last 12 months
- Duration
- 1h 31m
- scheduled
- Distance
- 385 mi
Monthly on-time trend
Best time to fly from DEN to PIR
Aim for departures around 9 p.m. (85% on-time); avoid 4 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 84% | 11 min |
| Tuesdaybest | 85% | 13 min |
| Wednesday | 77% | 53 min |
| Thursday | 79% | 13 min |
| Friday | 82% | 21 min |
| Saturday | 77% | 31 min |
| Sunday | 84% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft45%
- Airline operations35%
- National airspace system11%
- Weather10%
Frequently asked questions
- How often are flights from DEN to PIR delayed?
- 19% of DEN–PIR 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 21 minutes.
- What is the best time of day to fly from DEN to PIR?
- Departures around 9 p.m. have the best record (85% on-time), while departures around 4 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DEN to PIR?
- The scheduled DEN–PIR flight time averages 1h 31m over 385 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are DEN to PIR flights cancelled?
- 1.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from DEN to PIR?
- August 2025 was the roughest month in this dataset, with only 57% of arrivals on time. The best was April 2026 at 92%. If your dates are flexible, that 35-point gap is worth planning around.
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Based on 661 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.