Washington to Dayton

What the Data Says About DCA to DAY

The Washington to Dayton corridor (DCA → DAY) covers roughly 391 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 5,609 flights in the dataset, this route posts a 77.3% on-time rate with an average delay of 83.9 minutes when flights run late. Over the most recent 24 months of BTS data, 2,246 flights were recorded on this pairing — 73 cancelled (3.3%) and 1 diverted (0.0%). Those baseline metrics tell you what to expect before you book.

Having 3 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 5,609 total flights analyzed, the 77.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 83.9-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, Oct 2024 posted the best performance on this corridor at 90% on-time, while Dec 2025 came in at 52% on-time — a 37-point gap between best and worst recent month. For travelers evaluating the DCA to DAY route, the combination of a 77.3% on-time rate, 83.9-minute average delay, 3.3% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.