Best time to fly Kansas City to Charlotte

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

Best month

February

90.1% on time · 84 flights

Worst month

July

75.7% on time · 116 flights

Month Flights On time Cancelled When late, by
January 95 80% 15.79% 103 min
February 84 90.1% 3.57% 71 min
March 93 78% 2.15% 156 min
April 101 80.2% 0% 77 min
May 104 83.7% 0% 68 min
June 90 84.3% 1.11% 96 min
July 116 75.7% 0.86% 95 min
August 117 77.4% 0.85% 50 min
September 99 81.6% 1.01% 113 min
October 114 82.5% 0% 154 min
November 100 85.6% 3% 155 min
December 103 75.7% 0% 58 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.