Best Time to Fly BTM to DEN: On-Time Stats by Hour & Airline
Bert Mooney → Denver International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 80.4% of Butte (BTM) to Denver (DEN) flights arrived on time (365 scheduled flights). That is 2.8 points above the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
November has been the best month (97% on time) and Monday the weakest day of the week (72%).
0.3% of flights were cancelled, versus 1.8% nationally.
BTM to DEN 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 | 80.4% | 86 min | 0.3% | 365 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BTM to DEN
On-time arrival % by scheduled departure hour (local time), 574 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 84.8% | 0.0% | 198 |
| 10am–11am | 75.4% | 0.8% | 376 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BTM to DEN
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) | Limited data | 7 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 15 | ||
| Summer peak (Jun 15 - Aug 15) | 76.6% | -2.2 pts | 0.0% | 109 |
| All other days | 78.8% | — | 0.7% | 443 |
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).