Best time to fly Buffalo to Charlotte

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

Best month

April

88.3% on time · 181 flights

Worst month

July

66% on time · 258 flights

Month Flights On time Cancelled When late, by
January 186 74.9% 8.06% 105 min
February 171 70.7% 2.34% 74 min
March 190 78.4% 2.11% 65 min
April 181 88.3% 0.55% 137 min
May 186 81.1% 0.54% 60 min
June 205 79.2% 1.46% 98 min
July 258 66% 3.1% 107 min
August 251 66.9% 1.99% 94 min
September 216 87% 0.46% 110 min
October 244 85.6% 0.41% 126 min
November 176 87.5% 0% 68 min
December 179 69.5% 1.12% 108 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.