Route
ORD → CMI
Chicago O'Hare International Airport University of Illinois Willard Airport
How punctual is this route?
- On-time arrivals
- 72.1%
- Less than 15 minutes late
- Cancelled
- 3.8%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,075
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 60%
- Air traffic control & airport 17%
- Airline (crew, maintenance, cleaning) 15%
- Extreme weather 8%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 85.3% | 68 |
| October 2025 | 72.8% | 103 |
| November 2025 | 76.3% | 104 |
| December 2025 | 57.1% | 97 |
| January 2026 | 54.7% | 87 |
| February 2026 | 68.8% | 80 |
| March 2026 | 74.4% | 84 |
| April 2026 | 71.1% | 86 |
| May 2026 | 86.4% | 90 |
| June 2026 | 75.6% | 90 |
| July 2026 | 78.7% | 93 |
| August 2026 | 66.7% | 93 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Envoy Air | 1,075 | 72.1% | 3.8% | 71 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
MQ3694
36% late · 317 flights
-
MQ3959
27% late · 134 flights
-
MQ3492
11% late · 89 flights
-
MQ3476
12% late · 76 flights
-
MQ3477
31% late · 76 flights
-
MQ4298
35% late · 59 flights
-
MQ3484
40% late · 53 flights
-
MQ3529
7% late · 44 flights
-
MQ4002
42% late · 37 flights
-
MQ4000
23% late · 33 flights
-
MQ3536
28% late · 30 flights
-
MQ3419
27% late · 26 flights
-
MQ3436
18% late · 22 flights
-
MQ3837
26% late · 21 flights
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