Best time to fly Charlotte to Rochester

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

Best month

January

81.7% on time · 177 flights

Worst month

July

57% on time · 186 flights

Month Flights On time Cancelled When late, by
January 177 81.7% 6.21% 74 min
February 152 78.1% 3.95% 62 min
March 173 78.5% 0.58% 53 min
April 179 77.1% 0% 64 min
May 185 78.9% 0% 58 min
June 178 70.5% 0.56% 86 min
July 186 57% 3.76% 107 min
August 167 63.4% 1.8% 96 min
September 178 79.8% 1.12% 65 min
October 169 78.1% 0% 78 min
November 154 80.5% 0% 57 min
December 168 73.8% 0% 96 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.