Route Reliability
Chicago → Kalispell
ORD–FCA · 1,352 miles · Chicago O'Hare International Airport to Glacier Park International Airport
- 71%
- Arrive within 15 minutes
- 15 min
- Average arrival delay
- 1.2%
- Cancelled
- 578
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines75%314 flights
- 2.American Airlines66%264 flights
What the data says
Morning flights do better here.
ORD–FCA flights departing between 6–9 AM arrived on time 85% of the time, versus 53% between 6–9 PM.
Wednesdays have been rough.
ORD–FCA flights arrived on time 84% of the time on Tuesdays and just 65% on Wednesdays. That gap is worth planning around.
United Airlines runs this route best.
United Airlines arrived on time 75% of the time on this route; American Airlines managed 66%.
Recent months have been rougher.
ORD–FCA flights arrived on time 62% of the time over the last three months in the data, compared with 70% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon72%(81 flights)
- Tue84%(68 flights)
- Wed65%(68 flights)
- Thu75%(89 flights)
- Fri66%(85 flights)
- Sat70%(90 flights)
- Sun69%(89 flights)
- 6–9 AM85%(189 flights)
- 9 AM–12 PM71%(192 flights)
- 12–3 PM53%(103 flights)
- 3–6 PM76%(37 flights)
- 6–9 PM53%(49 flights)
Jun 63% → May 76% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 63% | 88 |
| July 2025 | 66% | 120 |
| August 2025 | 80% | 112 |
| September 2025 | 81% | 95 |
| October 2025 | 76% | 58 |
| December 2025 | 53% | 15 |
| February 2026 | 57% | 14 |
| March 2026 | 52% | 21 |
| May 2026 | 76% | 33 |
Keep nerding
Based on 578 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.