Best Time to Fly ORD to DAY: On-Time Stats by Hour & Airline
Chicago O'Hare International → James M Cox/Dayton International
Data through July 2026 · Last updated October 18, 2026
1,784 flights were scheduled from Chicago (ORD) to Dayton (DAY) in the last 12 months, and 66.5% of those that flew arrived on time, 11.1 points below the US average of 77.6%.
Among 5 airlines, United Airlines led with 80.9% on time and PSA Airlines was last with 61.1%.
Over 24 months, Saturday was the most reliable day (75% on time) and December the worst month (62%).
The cancellation rate was 4.9% (US average 1.8%).
ORD to DAY 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 |
|---|---|---|---|---|
| United Airlines | 80.9% | 80 min | 1.4% | 69 |
| Envoy Air | 78.5% | 65 min | 2.9% | 383 |
| Republic Airways | 72.7% | 65 min | 7.4% | 95 |
| SkyWest Airlines | 61.7% | 85 min | 5.8% | 582 |
| PSA Airlines | 61.1% | 169 min | 5.3% | 655 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to DAY
On-time arrival % by scheduled departure hour (local time), 3,098 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 3 | |
| 8am–9am | 71.4% | 6.0% | 67 |
| 9am–10am | 69.0% | 3.7% | 322 |
| 10am–11am | 81.5% | 0.7% | 425 |
| 11am–12pm | 61.8% | 8.1% | 111 |
| 12pm–1pm | Limited data | 10 | |
| 1pm–2pm | 70.1% | 4.4% | 182 |
| 2pm–3pm | 68.4% | 1.6% | 612 |
| 3pm–4pm | 73.8% | 4.6% | 196 |
| 4pm–5pm | Limited data | 10 | |
| 5pm–6pm | 77.8% | 0.0% | 90 |
| 6pm–7pm | 68.9% | 3.7% | 294 |
| 7pm–8pm | 56.6% | 5.5% | 271 |
| 8pm–9pm | 55.9% | 6.5% | 155 |
| 9pm–10pm | 76.7% | 2.5% | 326 |
| 10pm–11pm | Limited data | 24 | |
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 DAY
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) | 53.3% | -18.4 pts | 15.5% | 71 |
| Christmas & New Year (Dec 20 - Jan 3) | 69.6% | -2.1 pts | 3.7% | 82 |
| Summer peak (Jun 15 - Aug 15) | 64.4% | -7.4 pts | 3.1% | 542 |
| All other days | 71.7% | — | 3.0% | 2,403 |
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).