Chicago to Peoria

What the Data Says About ORD to PIA

The Chicago to Peoria corridor (ORD → PIA) covers roughly 130 miles and is served by 14 carriers, based on Bureau of Transportation Statistics reporting. Across 6,697 flights in the dataset, this route posts a 79.7% on-time rate with an average delay of 76.0 minutes when flights run late. Over the most recent 24 months of BTS data, 3,318 flights were recorded on this pairing — 83 cancelled (2.5%) and 9 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 14 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 6,697 total flights analyzed, the 79.7% on-time figure is statistically meaningful rather than a small-sample fluke. The 76.0-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Oct 2024 posted the best performance on this corridor at 89% on-time, while Jul 2025 came in at 57% on-time — a 31-point gap between best and worst recent month. For travelers evaluating the ORD to PIA route, the combination of a 79.7% on-time rate, 76.0-minute average delay, 2.5% recent cancellation rate, and 14 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.