Best time to fly Jacksonville to Charlotte

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

Best month

November

87.6% on time · 339 flights

Worst month

July

65.1% on time · 364 flights

Month Flights On time Cancelled When late, by
January 363 86.3% 5.51% 89 min
February 334 87.3% 0.9% 72 min
March 394 78.1% 1.27% 86 min
April 386 84.5% 0% 79 min
May 382 79.5% 1.05% 84 min
June 332 73.4% 2.41% 99 min
July 364 65.1% 3.85% 109 min
August 366 70.5% 2.46% 73 min
September 279 83.5% 1.79% 63 min
October 373 85.3% 0% 52 min
November 339 87.6% 0% 62 min
December 358 81.8% 0.28% 47 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.