Best Time to Fly ORD to COU: On-Time Stats by Hour & Airline
Chicago O'Hare International → Columbia Regional
Data through July 2026 · Last updated October 18, 2026
1,976 flights were scheduled from Chicago (ORD) to Columbia (COU) in the last 12 months, and 71.4% of those that flew arrived on time, 6.3 points below the US average of 77.6%.
Envoy Air was the most punctual of the 2 airlines on the route at 75.0%, while SkyWest Airlines trailed at 66.4%.
May has been the best month (87% on time) and Friday the weakest day of the week (68%).
3.7% of flights were cancelled, versus 1.8% nationally.
ORD to COU on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Air | 75.0% | 65 min | 2.8% | 1,135 |
| SkyWest Airlines | 66.4% | 98 min | 5.0% | 841 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to COU
On-time arrival % by scheduled departure hour (local time), 2,711 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 3 | |
| 8am–9am | 86.5% | 0.4% | 225 |
| 9am–10am | 75.8% | 1.2% | 335 |
| 10am–11am | Limited data | 11 | |
| 11am–12pm | 90.5% | 0.0% | 63 |
| 12pm–1pm | 71.3% | 3.5% | 141 |
| 1pm–2pm | 71.4% | 1.9% | 268 |
| 2pm–3pm | 81.0% | 2.3% | 216 |
| 3pm–4pm | 70.0% | 3.2% | 63 |
| 4pm–5pm | 76.8% | 4.3% | 187 |
| 5pm–6pm | 63.8% | 4.1% | 196 |
| 6pm–7pm | 62.4% | 5.6% | 107 |
| 7pm–8pm | 67.3% | 3.9% | 590 |
| 8pm–9pm | 64.7% | 4.4% | 229 |
| 10pm–11pm | 73.5% | 11.7% | 77 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ORD to COU
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 56.8% | -16.7 pts | 19.6% | 46 |
| Christmas & New Year (Dec 20 - Jan 3) | 56.6% | -16.8 pts | 0.9% | 115 |
| Summer peak (Jun 15 - Aug 15) | 73.3% | -0.1 pts | 1.8% | 439 |
| All other days | 73.4% | — | 3.3% | 2,111 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).