Best Time to Fly ORD to CMH: On-Time Stats by Hour & Airline
Chicago O'Hare International → John Glenn Columbus International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.6% of Chicago (ORD) to Columbus (CMH) flights arrived on time (4,933 scheduled flights). That is 3.0 points below the national average of 77.6%.
Republic Airways was the most punctual of the 6 airlines on the route at 77.5%, while American Airlines trailed at 61.6%.
November has been the best month (81% on time) and Friday the weakest day of the week (72%).
2.8% of flights were cancelled, versus 1.8% nationally.
ORD to CMH 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 |
|---|---|---|---|---|
| Republic Airways | 77.5% | 83 min | 3.4% | 1,568 |
| Envoy Air | 75.6% | 69 min | 2.3% | 1,418 |
| United Airlines | 72.9% | 70 min | 1.8% | 1,219 |
| SkyWest Airlines | 71.5% | 77 min | 4.8% | 547 |
| PSA Airlines | 67.3% | 77 min | 3.7% | 54 |
| American Airlines | 61.6% | 86 min | 1.6% | 127 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to CMH
On-time arrival % by scheduled departure hour (local time), 9,107 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 1 | |
| 6am–7am | 87.2% | 2.1% | 48 |
| 7am–8am | 89.3% | 0.6% | 890 |
| 8am–9am | 81.1% | 0.9% | 347 |
| 9am–10am | 86.2% | 0.0% | 109 |
| 10am–11am | 81.7% | 0.6% | 786 |
| 11am–12pm | 73.8% | 2.7% | 404 |
| 12pm–1pm | 86.9% | 1.0% | 672 |
| 1pm–2pm | 72.1% | 1.7% | 299 |
| 2pm–3pm | 73.9% | 1.0% | 1,004 |
| 3pm–4pm | 80.0% | 0.8% | 480 |
| 4pm–5pm | 70.8% | 2.8% | 535 |
| 5pm–6pm | 66.7% | 3.8% | 580 |
| 6pm–7pm | 69.5% | 1.6% | 730 |
| 7pm–8pm | 72.3% | 2.1% | 966 |
| 8pm–9pm | 70.1% | 3.1% | 420 |
| 9pm–10pm | 69.0% | 2.8% | 782 |
| 10pm–11pm | 50.0% | 8.3% | 48 |
| 11pm–12am | Limited data | 6 | |
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 CMH
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) | 68.0% | -9.9 pts | 10.2% | 167 |
| Christmas & New Year (Dec 20 - Jan 3) | 73.3% | -4.5 pts | 0.0% | 270 |
| Summer peak (Jun 15 - Aug 15) | 69.0% | -8.8 pts | 2.4% | 1,671 |
| All other days | 77.9% | — | 1.5% | 6,999 |
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).