Best Time to Fly PIA to ORD: On-Time Stats by Hour & Airline
General Downing - Peoria International → Chicago O'Hare International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 70.7% of Peoria (PIA) to Chicago (ORD) flights arrived on time (2,284 scheduled flights). That is 6.9 points below the national average of 77.6%.
Among 2 airlines, Envoy Air led with 78.7% on time and SkyWest Airlines was last with 64.2%.
Over 24 months, Saturday was the most reliable day (76% on time) and March the worst month (63%).
The cancellation rate was 4.7% (US average 1.8%).
PIA to ORD 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 | 78.7% | 67 min | 4.5% | 1,023 |
| SkyWest Airlines | 64.2% | 99 min | 4.8% | 1,261 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PIA to ORD
On-time arrival % by scheduled departure hour (local time), 4,083 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 87.3% | 1.8% | 56 |
| 6am–7am | 86.3% | 1.7% | 841 |
| 7am–8am | 89.1% | 0.0% | 55 |
| 8am–9am | 73.6% | 2.2% | 182 |
| 9am–10am | 86.7% | 2.3% | 131 |
| 10am–11am | 78.9% | 2.8% | 653 |
| 11am–12pm | 68.2% | 0.0% | 218 |
| 12pm–1pm | Limited data | 7 | |
| 1pm–2pm | 69.6% | 4.8% | 295 |
| 2pm–3pm | 73.4% | 1.2% | 244 |
| 3pm–4pm | 62.2% | 3.4% | 204 |
| 4pm–5pm | 69.0% | 1.2% | 85 |
| 5pm–6pm | 52.2% | 2.9% | 700 |
| 6pm–7pm | 64.4% | 2.9% | 208 |
| 7pm–8pm | 58.1% | 16.1% | 149 |
| 8pm–9pm | 67.3% | 10.9% | 55 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PIA to ORD
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) | 53.1% | -19.5 pts | 16.9% | 59 |
| Christmas & New Year (Dec 20 - Jan 3) | 69.4% | -3.1 pts | 1.6% | 123 |
| Summer peak (Jun 15 - Aug 15) | 71.6% | -1.0 pts | 2.9% | 765 |
| All other days | 72.5% | — | 2.8% | 3,136 |
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).