Best Time to Fly FCA to DEN: On-Time Stats by Hour & Airline
Glacier Park International → Denver International
Data through July 2026 · Last updated October 18, 2026
1,010 flights were scheduled from Kalispell (FCA) to Denver (DEN) in the last 12 months, and 84.8% of those that flew arrived on time, 7.2 points above the US average of 77.6%.
Among 2 airlines, SkyWest Airlines led with 89.2% on time and United Airlines was last with 83.7%.
Over 24 months, Sunday was the most reliable day (87% on time) and August the worst month (75%).
The cancellation rate was 1.0% (US average 1.8%).
FCA 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 | 89.2% | 52 min | 0.0% | 203 |
| United Airlines | 83.7% | 86 min | 1.2% | 807 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly FCA to DEN
On-time arrival % by scheduled departure hour (local time), 2,135 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 91.4% | 1.0% | 713 |
| 10am–11am | 92.1% | 0.3% | 304 |
| 2pm–3pm | 76.6% | 0.7% | 716 |
| 5pm–6pm | 70.3% | 0.8% | 402 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on FCA 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 | 26 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 74.2% | -9.9 pts | 1.1% | 90 |
| Summer peak (Jun 15 - Aug 15) | 78.5% | -5.6 pts | 1.4% | 443 |
| All other days | 84.1% | — | 0.6% | 1,576 |
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).