Route on-time record
FCA to ORD: most on-time flights and the best time to fly
Kalispell (Glacier Park International Airport) to Chicago (Chicago O'Hare International Airport). 578 nonstop flights in Jun 2025 to May 2026, 65% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was United 2362 at 12:35 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
FCA → ORD
Kalispell to Chicago: 578 nonstop flights a year
On time (12 months)
65%
Cancelled
0.9%
avg delay 34 min
Best time to leave
Noon to 3 PM
73% on time vs 29% 3 to 6 PM
Most reliable airline
United
75% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · United 2362
12:35 PM → 5:05 PM3h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 25 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Noon to 3 PM: 73% on time; 3 to 6 PM: 29%).
- Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.
- 76% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 11 flights
Find United 2362 fares Opens this date on Aviasales#2 · American 1833
1:25 PM → 6:04 PM3h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
56%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 19 min
- Arrived on time 73% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Noon to 3 PM: 73% on time; 3 to 6 PM: 29%).
- Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.
- 62% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 11 flights
Find American 1833 fares Opens this date on Aviasales#3 · American 1844
4:45 PM → 9:34 PM3h 49m nonstop
Local times, typical schedule. Last flown 2026-05-31.
40%
chance on time
- On time (history)
- 64%
- Cancelled
- 0.0%
- Avg arrival delay
- 21 min
- Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 29% on time; Noon to 3 PM: 73%).
- 87% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 11 flights
Find American 1844 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines75%
177 flights · 79% on time as flown · 0.4% cancel
- American Airlines52%
237 flights · 48% on time as flown · 0.9% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM71%
92 flights · avg delay 16 min
- Noon to 3 PM73%
383 flights · avg delay 29 min
- 3 to 6 PM29%
103 flights · avg delay 72 min
Best day: Tuesday (77%). Worst: Sunday (60%).
Smarter routing
Or connect through a calmer hub
via SLC (Salt Lake City International Airport)
68% both legs on time- FCA to SLC on time 92%, SLC to ORD on time 75%.
- SLC rarely gets ground stops (7 in 12 months).
Book connections on one ticket and allow at least an hour at the hub. Leg odds are combined as independent, a rough guide.
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft37%
- Airline (crew, maintenance, boarding)34%
- Air traffic control and airport volume21%
- Severe weather8%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
FCA to ORD questions
- What time of day is best to fly FCA to ORD?
- Noon to 3 PM: 73% of flights arrived on time, against 29% for departures 3 to 6 PM.
- Which airline is most on time from FCA to ORD?
- United, with a season-adjusted 75% chance of operating and arriving on time over 177 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on FCA to ORD?
- July (60% on time); the best was October (82%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from FCA
Live status: FAA delays and ground stops