New York to Greer

What the Data Says About LGA to GSP

The New York to Greer corridor (LGA → GSP) covers roughly 610 miles and is served by 5 carriers, based on Bureau of Transportation Statistics reporting. Across 5,399 flights in the dataset, this route posts a 82.3% on-time rate with an average delay of 77.4 minutes when flights run late. Over the most recent 24 months of BTS data, 2,591 flights were recorded on this pairing — 105 cancelled (4.1%) and 4 diverted (0.2%). 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 5,399 total flights analyzed, the 82.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 77.4-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, Sep 2024 posted the best performance on this corridor at 94% on-time, while Dec 2025 came in at 60% on-time — a 34-point gap between best and worst recent month. For travelers evaluating the LGA to GSP route, the combination of a 82.3% on-time rate, 77.4-minute average delay, 4.1% recent cancellation rate, and 5 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.