Best time to fly Kansas City to Nashville

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

Best month

January

88.8% on time · 195 flights

Worst month

June

72.6% on time · 255 flights

Month Flights On time Cancelled When late, by
January 195 88.8% 8.21% 70 min
February 188 86.6% 0% 33 min
March 217 85.1% 0.92% 75 min
April 228 85.5% 0.44% 57 min
May 245 78.6% 0.82% 51 min
June 255 72.6% 0% 51 min
July 248 80.6% 0% 45 min
August 231 88.3% 0% 39 min
September 223 88.8% 0% 38 min
October 240 84.2% 0% 41 min
November 224 88.4% 0% 50 min
December 228 84.1% 0% 64 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.