New York to Nantucket

What the Data Says About LGA to ACK

The New York to Nantucket corridor (LGA → ACK) covers roughly 202 miles and is served by 8 carriers, based on Bureau of Transportation Statistics reporting. Across 1,973 flights in the dataset, this route posts a 83.2% on-time rate with an average delay of 81.4 minutes when flights run late. Over the most recent 24 months of BTS data, 1,902 flights were recorded on this pairing — 80 cancelled (4.2%) and 17 diverted (0.9%). 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 1,973 total flights analyzed, the 83.2% on-time figure is statistically meaningful rather than a small-sample fluke. The 81.4-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, Jun 2022 posted the best performance on this corridor at 90% on-time, while Jul 2023 came in at 71% on-time — a 19-point gap between best and worst recent month. For travelers evaluating the LGA to ACK route, the combination of a 83.2% on-time rate, 81.4-minute average delay, 4.2% recent cancellation rate, and 8 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.