Chicago (ORD) to Kalispell (FCA): On-Time Performance
Data through July 2026
Chicago (ORD) to Kalispell (FCA) effectively runs on two schedules. In September 2024, 96% of arrivals were on time; in March 2026 that fell to 52% — a 44-point seasonal swing. Across the full period the route averages 74% on-time against a national 78%.
- On-time
- 74%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 1.5
- last 12 months
- Duration
- 3h 51m
- scheduled
- Distance
- 1,352 mi
Best airline from ORD to FCA
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 84% | 11 min | 0.0% | 349 |
| American Airlines | 71% | 21 min | 0.7% | 439 |
| SkyWest Airlines | 63% | 33 min | 4.5% | 177 |
Monthly on-time trend
Best time to fly from ORD to FCA
Aim for departures around 8 a.m. (85% on-time); avoid 7 p.m. departures (56%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 17 min |
| Tuesdaybest | 86% | 11 min |
| Wednesday | 70% | 23 min |
| Thursday | 77% | 19 min |
| Friday | 70% | 19 min |
| Saturday | 72% | 22 min |
| Sunday | 73% | 23 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft34%
- Airline operations43%
- National airspace system20%
- Weather3%
Frequently asked questions
- How often are flights from ORD to FCA delayed?
- 26% of ORD–FCA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 19 minutes.
- Which airline is most reliable from ORD to FCA?
- United Airlines has the best on-time record on this route at 84%, based on 349 flights. 3 airlines flew ORD–FCA frequently enough to compare in this period.
- What is the best time of day to fly from ORD to FCA?
- Departures around 8 a.m. have the best record (85% on-time), while departures around 7 p.m. have the worst (56%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ORD to FCA?
- The scheduled ORD–FCA flight time averages 3h 51m over 1,352 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
- How often are ORD to FCA flights cancelled?
- 1.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from ORD to FCA?
- March 2026 was the roughest month in this dataset, with only 52% of arrivals on time. The best was September 2024 at 96%. If your dates are flexible, that 44-point gap is worth planning around.
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Based on 992 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.