Best time to fly Greensboro/High Point to New York

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full GSO to LGA record →

Best month

September

90.4% on time · 348 flights

Worst month

July

72.8% on time · 329 flights

Month Flights On time Cancelled When late, by
January 286 84% 8.04% 69 min
February 258 81.9% 8.14% 60 min
March 269 76.4% 7.06% 70 min
April 315 78% 0.32% 80 min
May 282 80.1% 1.42% 81 min
June 256 75% 5.47% 62 min
July 329 72.8% 11.55% 100 min
August 328 78.5% 7.32% 95 min
September 348 90.4% 0.86% 74 min
October 391 80% 1.53% 72 min
November 383 79.1% 3.92% 82 min
December 341 74.8% 3.23% 66 min

What a seasonal pattern can and cannot tell you

Months differ for reasons that repeat — summer thunderstorms in the American interior, winter fog and de-icing in northern Europe, school holidays filling every seat and leaving no slack in the schedule. Those are real and they come back each year.

What the pattern cannot do is forecast a particular flight. A quiet month has late days and a bad month has punctual ones. Treat this as a way to choose between two dates you are indifferent about, not as a promise.