Best time to fly Charleston to Charlotte

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

Best month

November

89.1% on time · 480 flights

Worst month

July

74.1% on time · 480 flights

Month Flights On time Cancelled When late, by
January 441 87.5% 10.88% 150 min
February 395 85.8% 3.54% 81 min
March 421 82.5% 0.95% 96 min
April 421 85% 0% 91 min
May 463 81.6% 0.22% 118 min
June 435 79.7% 1.38% 92 min
July 480 74.1% 2.5% 128 min
August 445 79.2% 3.82% 86 min
September 428 86.2% 1.64% 101 min
October 487 83% 0% 107 min
November 480 89.1% 0.63% 52 min
December 465 75.4% 0.22% 88 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.