Detroit to Elmira/Corning

What the Data Says About DTW to ELM

The Detroit to Elmira/Corning corridor (DTW → ELM) covers roughly 332 miles and is served by 4 carriers, based on Bureau of Transportation Statistics reporting. Across 4,715 flights in the dataset, this route posts a 83.9% on-time rate with an average delay of 91.9 minutes when flights run late. Over the most recent 24 months of BTS data, 1,566 flights were recorded on this pairing — 9 cancelled (0.6%) and 6 diverted (0.4%). Those baseline metrics tell you what to expect before you book.

Having 4 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 4,715 total flights analyzed, the 83.9% on-time figure is statistically meaningful rather than a small-sample fluke. The 91.9-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, Mar 2024 posted the best performance on this corridor at 94% on-time, while Dec 2025 came in at 53% on-time — a 41-point gap between best and worst recent month. For travelers evaluating the DTW to ELM route, the combination of a 83.9% on-time rate, 91.9-minute average delay, 0.6% recent cancellation rate, and 4 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.