Chicago to Anchorage

What the Data Says About ORD to ANC

The Chicago to Anchorage corridor (ORD → ANC) covers roughly 2,846 miles and is served by 8 carriers, based on Bureau of Transportation Statistics reporting. Across 3,542 flights in the dataset, this route posts a 77.4% on-time rate with an average delay of 66.4 minutes when flights run late. Over the most recent 24 months of BTS data, 2,430 flights were recorded on this pairing — 11 cancelled (0.5%) and 8 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 8 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 3,542 total flights analyzed, the 77.4% on-time figure is statistically meaningful rather than a small-sample fluke. The 66.4-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, May 2025 posted the best performance on this corridor at 90% on-time, while Aug 2023 came in at 61% on-time — a 29-point gap between best and worst recent month. For travelers evaluating the ORD to ANC route, the combination of a 77.4% on-time rate, 66.4-minute average delay, 0.5% recent cancellation rate, and 8 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.