Santa Ana to Chicago

What the Data Says About SNA to ORD

The Santa Ana to Chicago corridor (SNA → ORD) covers roughly 1,726 miles and is served by 2 carriers, based on Bureau of Transportation Statistics reporting. Across 11,656 flights in the dataset, this route posts a 85.7% on-time rate with an average delay of 83.8 minutes when flights run late. Over the most recent 24 months of BTS data, 4,400 flights were recorded on this pairing — 27 cancelled (0.6%) and 42 diverted (1.0%). Those baseline metrics tell you what to expect before you book.

Having 2 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 11,656 total flights analyzed, the 85.7% on-time figure is statistically meaningful rather than a small-sample fluke. The 83.8-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, Feb 2024 posted the best performance on this corridor at 88% on-time, while Jun 2025 came in at 73% on-time — a 15-point gap between best and worst recent month. For travelers evaluating the SNA to ORD route, the combination of a 85.7% on-time rate, 83.8-minute average delay, 0.6% recent cancellation rate, and 2 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.