Wilmington to Boston

What the Data Says About ILM to BOS

The Wilmington to Boston corridor (ILM → BOS) covers roughly 672 miles and is served by 7 carriers, based on Bureau of Transportation Statistics reporting. Across 966 flights in the dataset, this route posts a 71.5% on-time rate with an average delay of 77.1 minutes when flights run late. Over the most recent 24 months of BTS data, 966 flights were recorded on this pairing — 16 cancelled (1.7%) and 2 diverted (0.2%). Those baseline metrics tell you what to expect before you book.

Having 7 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 966 total flights analyzed, the 71.5% on-time figure is statistically meaningful rather than a small-sample fluke. The 77.1-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, Aug 2025 posted the best performance on this corridor at 87% on-time, while Oct 2025 came in at 45% on-time — a 42-point gap between best and worst recent month. For travelers evaluating the ILM to BOS route, the combination of a 71.5% on-time rate, 77.1-minute average delay, 1.7% recent cancellation rate, and 7 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.