Best Time to Fly BZN to DEN: On-Time Stats by Hour & Airline
Bozeman Yellowstone International → Denver International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 77.4% of Bozeman (BZN) to Denver (DEN) flights arrived on time (2,722 scheduled flights). That is in line with the national average of 77.6%.
Among 3 airlines, United Airlines led with 80.4% on time and Southwest Airlines was last with 74.0%.
Over 24 months, Monday was the most reliable day (79% on time) and July the worst month (65%).
The cancellation rate was 0.4% (US average 1.8%).
BZN 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 |
|---|---|---|---|---|
| United Airlines | 80.4% | 68 min | 0.2% | 1,197 |
| SkyWest Airlines | 78.9% | 66 min | 1.4% | 351 |
| Southwest Airlines | 74.0% | 56 min | 0.3% | 1,174 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BZN to DEN
On-time arrival % by scheduled departure hour (local time), 5,477 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 88.6% | 0.0% | 385 |
| 6am–7am | 92.2% | 0.2% | 462 |
| 7am–8am | 84.0% | 0.5% | 640 |
| 8am–9am | Limited data | 26 | |
| 9am–10am | Limited data | 18 | |
| 10am–11am | 84.4% | 0.8% | 1,016 |
| 11am–12pm | 87.5% | 0.0% | 263 |
| 12pm–1pm | 83.0% | 0.0% | 95 |
| 1pm–2pm | 65.6% | 0.0% | 65 |
| 2pm–3pm | 71.4% | 0.5% | 1,039 |
| 3pm–4pm | 67.5% | 0.0% | 154 |
| 4pm–5pm | 66.0% | 0.5% | 856 |
| 5pm–6pm | 60.0% | 1.8% | 337 |
| 6pm–7pm | 75.0% | 0.9% | 105 |
| 7pm–8pm | Limited data | 16 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BZN 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) | 79.2% | -0.6 pts | 0.0% | 96 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.0% | -0.7 pts | 0.0% | 243 |
| Summer peak (Jun 15 - Aug 15) | 68.6% | -11.1 pts | 0.3% | 1,081 |
| All other days | 79.7% | — | 0.6% | 4,057 |
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).