Best time to fly Greer to Charlotte

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

Best month

January

87.1% on time · 408 flights

Worst month

July

66.9% on time · 437 flights

Month Flights On time Cancelled When late, by
January 408 87.1% 7.11% 88 min
February 388 82.1% 3.61% 96 min
March 420 78.5% 2.38% 103 min
April 366 85.7% 0.55% 75 min
May 384 80.6% 1.82% 63 min
June 260 71.8% 1.92% 89 min
July 437 66.9% 2.97% 97 min
August 390 78.2% 1.03% 82 min
September 370 79.2% 1.35% 86 min
October 398 75.9% 0% 52 min
November 415 80% 0.24% 46 min
December 395 75.4% 1.01% 97 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.