Best time to fly Atlanta to Charleston/Dunbar

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

Best month

October

87.9% on time · 141 flights

Worst month

July

55.6% on time · 93 flights

Month Flights On time Cancelled When late, by
January 151 57.3% 12.58% 108 min
February 79 72.7% 1.27% 203 min
March 67 73.4% 2.99% 66 min
April 65 75% 1.54% 73 min
May 82 69.1% 1.22% 69 min
June 19 68.4% 0% 391 min
July 93 55.6% 3.23% 101 min
August 111 70.9% 0.9% 77 min
September 121 83.5% 0% 85 min
October 141 87.9% 0% 105 min
November 109 83.3% 0.92% 95 min
December 98 73.5% 0% 114 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.