Greer to New York

What the Data Says About GSP to LGA

The Greer to New York corridor (GSP → LGA) covers roughly 610 miles and is served by 5 carriers, based on Bureau of Transportation Statistics reporting. Across 5,397 flights in the dataset, this route posts a 85.6% on-time rate with an average delay of 84.2 minutes when flights run late. Over the most recent 24 months of BTS data, 2,590 flights were recorded on this pairing — 94 cancelled (3.6%) and 9 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 5 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 5,397 total flights analyzed, the 85.6% on-time figure is statistically meaningful rather than a small-sample fluke. The 84.2-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, Sep 2024 posted the best performance on this corridor at 93% on-time, while Dec 2025 came in at 65% on-time — a 27-point gap between best and worst recent month. For travelers evaluating the GSP to LGA route, the combination of a 85.6% on-time rate, 84.2-minute average delay, 3.6% recent cancellation rate, and 5 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.