Best Time to Fly DEN to BIL: On-Time Stats by Hour & Airline
Denver International → Billings Logan International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 80.6% of Denver (DEN) to Billings (BIL) flights arrived on time (1,778 scheduled flights). That is 2.9 points above the national average of 77.6%.
Among 2 airlines, SkyWest Airlines led with 81.9% on time and United Airlines was last with 78.7%.
Over 24 months, Wednesday was the most reliable day (82% on time) and July the worst month (66%).
The cancellation rate was 0.6% (US average 1.8%).
DEN to BIL 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 | 81.9% | 59 min | 0.9% | 1,049 |
| United Airlines | 78.7% | 62 min | 0.1% | 729 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to BIL
On-time arrival % by scheduled departure hour (local time), 3,499 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 91.3% | 0.0% | 103 |
| 8am–9am | 84.4% | 0.8% | 593 |
| 11am–12pm | 77.4% | 0.1% | 693 |
| 12pm–1pm | 81.1% | 0.0% | 37 |
| 1pm–2pm | 77.2% | 0.5% | 218 |
| 3pm–4pm | 76.8% | 1.8% | 685 |
| 7pm–8pm | 74.2% | 0.1% | 724 |
| 8pm–9pm | 54.6% | 1.1% | 87 |
| 9pm–10pm | 82.3% | 1.4% | 359 |
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 BIL
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) | 72.2% | -8.9 pts | 0.0% | 54 |
| Christmas & New Year (Dec 20 - Jan 3) | 81.7% | +0.5 pts | 0.0% | 120 |
| Summer peak (Jun 15 - Aug 15) | 67.1% | -14.1 pts | 0.8% | 711 |
| All other days | 81.2% | — | 0.8% | 2,614 |
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).