Best Time to Fly DEN to CPR: On-Time Stats by Hour & Airline
Denver International → Casper/Natrona County International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 77.7% of Denver (DEN) to Casper (CPR) flights arrived on time (2,600 scheduled flights). That is in line with the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (88% on time) and Friday the weakest day of the week (74%).
0.8% of flights were cancelled, versus 1.8% nationally.
DEN to CPR on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 77.7% | 82 min | 0.8% | 2,600 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to CPR
On-time arrival % by scheduled departure hour (local time), 4,867 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 2 | |
| 7am–8am | 87.5% | 0.0% | 72 |
| 8am–9am | 78.1% | 0.0% | 32 |
| 9am–10am | 83.7% | 1.2% | 685 |
| 11am–12pm | 79.6% | 0.8% | 728 |
| 1pm–2pm | 81.6% | 1.1% | 730 |
| 3pm–4pm | 75.0% | 1.3% | 600 |
| 4pm–5pm | 68.0% | 1.6% | 127 |
| 5pm–6pm | 67.9% | 1.4% | 443 |
| 7pm–8pm | 69.0% | 1.2% | 725 |
| 8pm–9pm | 81.3% | 0.3% | 366 |
| 9pm–10pm | 74.5% | 1.1% | 355 |
| 11pm–12am | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DEN to CPR
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 73.3% | -5.6 pts | 0.0% | 86 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.9% | +2.1 pts | 0.0% | 195 |
| Summer peak (Jun 15 - Aug 15) | 67.9% | -11.0 pts | 1.2% | 895 |
| All other days | 78.9% | — | 1.1% | 3,691 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).