Best time to fly Rochester to Charlotte

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

Best month

November

85.6% on time · 154 flights

Worst month

July

70.4% on time · 186 flights

Month Flights On time Cancelled When late, by
January 177 78.3% 6.21% 125 min
February 152 81.4% 4.61% 51 min
March 173 84.9% 0.58% 58 min
April 179 84.3% 0.56% 60 min
May 185 84.2% 0% 91 min
June 178 78.4% 1.12% 79 min
July 186 70.4% 3.76% 101 min
August 167 71.8% 1.8% 86 min
September 178 83.5% 1.12% 101 min
October 169 84.6% 0% 97 min
November 154 85.6% 0% 135 min
December 168 73.8% 0% 121 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.