Best Time to Fly ORD to FCA: On-Time Stats by Hour & Airline
Chicago O'Hare International → Glacier Park International
Data through July 2026 · Last updated October 18, 2026
532 flights were scheduled from Chicago (ORD) to Kalispell (FCA) in the last 12 months, and 74.8% of those that flew arrived on time, 2.8 points below the US average of 77.6%.
Among 3 airlines, United Airlines led with 83.6% on time and SkyWest Airlines was last with 69.9%.
Over 24 months, Tuesday was the most reliable day (87% on time) and March the worst month (63%).
The cancellation rate was 1.5% (US average 1.8%).
ORD to FCA 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 | 83.6% | 53 min | 0.0% | 165 |
| American Airlines | 71.7% | 67 min | 0.5% | 220 |
| SkyWest Airlines | 69.9% | 83 min | 5.8% | 120 |
| Envoy Air | Limited data | 27 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to FCA
On-time arrival % by scheduled departure hour (local time), 926 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 85.8% | 0.0% | 387 |
| 9am–10am | 72.9% | 0.9% | 216 |
| 10am–11am | 71.4% | 0.0% | 56 |
| 11am–12pm | Limited data | 3 | |
| 12pm–1pm | Limited data | 1 | |
| 1pm–2pm | 56.4% | 1.3% | 151 |
| 3pm–4pm | Limited data | 1 | |
| 4pm–5pm | 77.8% | 0.0% | 36 |
| 7pm–8pm | 56.7% | 9.3% | 75 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ORD to FCA
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Christmas & New Year (Dec 20 - Jan 3) | 66.7% | -11.9 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 69.5% | -9.1 pts | 1.8% | 391 |
| All other days | 78.6% | — | 0.8% | 505 |
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).