Route
COU → ORD
Columbia Regional Airport Chicago O'Hare International Airport
How punctual is this route?
- On-time arrivals
- 73.7%
- Less than 15 minutes late
- Cancelled
- 3.7%
- Of scheduled flights
- Average delay when late
- 103 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,054
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 24%
- Air traffic control & airport 19%
- Extreme weather 12%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 75.5% | 107 |
| October 2025 | 73.7% | 179 |
| November 2025 | 76.5% | 167 |
| December 2025 | 59.2% | 205 |
| January 2026 | 71.8% | 185 |
| February 2026 | 81.0% | 164 |
| March 2026 | 66.9% | 182 |
| April 2026 | 71.7% | 195 |
| May 2026 | 78.2% | 186 |
| June 2026 | 79.5% | 174 |
| July 2026 | 83.3% | 155 |
| August 2026 | 71.8% | 155 |
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 | 1,152 | 76.9% | 2.7% | 86 min |
| SkyWest Airlines | 902 | 69.6% | 4.9% | 120 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
MQ3655
14% late · 320 flights
-
OO5609
24% late · 289 flights
-
OO5869
34% late · 288 flights
-
MQ4228
24% late · 150 flights
-
MQ4142
39% late · 106 flights
-
OO6007
44% late · 77 flights
-
MQ3479
29% late · 76 flights
-
MQ3480
21% late · 76 flights
-
MQ4244
35% late · 56 flights
-
MQ3540
15% late · 44 flights
-
MQ3744
9% late · 44 flights
-
OO5841
36% late · 37 flights
-
MQ3442
6% late · 33 flights
-
MQ4016
17% late · 31 flights
-
OO4728
23% late · 31 flights
-
MQ3542
48% late · 30 flights
-
MQ4271
31% late · 30 flights
-
OO4707
27% late · 30 flights
-
MQ3364
46% late · 29 flights
-
MQ3398
35% late · 27 flights
-
MQ3399
42% late · 27 flights
-
MQ3720
11% late · 27 flights
-
MQ3843
22% late · 27 flights
-
OO4639
17% late · 24 flights
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