Route on-time record
CMI to ORD: most on-time flights and the best time to fly
Savoy (University of Illinois Willard Airport) to Chicago (Chicago O'Hare International Airport). 1,024 nonstop flights in Jun 2025 to May 2026, 75% arrived within 15 minutes and 3.5% were cancelled. The most reliable flight number was Envoy 3421 at 6:05 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
CMI → ORD
Savoy to Chicago: 1,024 nonstop flights a year
On time (12 months)
75%
Cancelled
3.5%
avg delay 20 min
Best time to leave
Before 9 AM
85% on time vs 60% 6 to 9 PM
Most reliable airline
Envoy
72% chance on time
Lowest nonstop fare seen in the next two months: $405 (American 3980 on 2026-10-24). 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 · Envoy 3421 · sold as American Eagle
6:05 AM → 7:25 AM1h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.8%
- Avg arrival delay
- 15 min
- Arrived on time 81% of the time (127 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 85% on time; 6 to 9 PM: 60%).
Moderate track record · 127 flights
Find 6:05 AM flight fares Opens this date on Aviasales#2 · Envoy 3529 · sold as American Eagle
2:38 PM → 3:53 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-20.
79%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 86% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 44 flights
Find 2:38 PM flight fares Opens this date on Aviasales#3 · Envoy 3476 · sold as American Eagle
11:37 AM → 12:48 PM1h 11m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 18 min
- Arrived on time 73% of the time (11 flights, Jun 2025 to May 2026).
- 53% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 11 flights
Find 11:37 AM flight fares Opens this date on Aviasales#4 · Envoy 3477 · sold as American Eagle
6:39 PM → 8:09 PM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
66%
chance on time
- On time (history)
- 64%
- Cancelled
- 0.0%
- Avg arrival delay
- 18 min
- Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 60% on time; Before 9 AM: 85%).
- 94% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 11 flights
Find 6:39 PM flight fares Opens this date on Aviasales#5 · Envoy 3536 · sold as American Eagle
6:58 PM → 8:18 PM1h 20m nonstop
Local times, typical schedule. Last flown 2026-05-20.
60%
chance on time
- On time (history)
- 61%
- Cancelled
- 8.6%
- Avg arrival delay
- 34 min
- Arrived on time 61% of the time (64 flights, Jun 2025 to May 2026).
- Cancelled 8.6% of the time (6 of 70).
- Leaves in this route's least on-time window (6 to 9 PM: 60% on time; Before 9 AM: 85%).
Moderate track record · 64 flights
Find 6:58 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Envoy Air (sold as American Eagle)72%
1,024 flights · 75% on time as flown · 3.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM85%
312 flights · avg delay 15 min
- 9 AM to noon79%
249 flights · avg delay 17 min
- Noon to 3 PM75%
149 flights · avg delay 20 min
- 3 to 6 PM62%
87 flights · avg delay 30 min
- 6 to 9 PM60%
227 flights · avg delay 27 min
Best day: Saturday (83%). Worst: Sunday (74%).
Smarter routing
Nearby airports that run more on time
BMI → ORD 80% chance on time
Central Illinois Regional Airport at Bloomington-Normal to Chicago O'Hare International Airport · 880 flights a year · 45 mi from your airports · yours: 72%
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 aircraft54%
- Air traffic control and airport volume31%
- Airline (crew, maintenance, boarding)13%
- Severe weather2%
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
CMI to ORD questions
- What time of day is best to fly CMI to ORD?
- Before 9 AM: 85% of flights arrived on time, against 60% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from CMI to ORD?
- Envoy, with a season-adjusted 72% chance of operating and arriving on time over 1,024 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 CMI to ORD?
- July (75% on time); the best was November (83%), 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 CMI
Live status: FAA delays and ground stops