Best time to fly Charlotte to Indianapolis

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

Best month

October

86.9% on time · 360 flights

Worst month

July

49.5% on time · 340 flights

Month Flights On time Cancelled When late, by
January 308 80.9% 8.12% 69 min
February 281 75.9% 2.49% 58 min
March 327 76.5% 0.61% 56 min
April 312 77.9% 1.28% 69 min
May 329 75.8% 0.61% 56 min
June 352 70.9% 1.7% 87 min
July 340 49.5% 3.53% 79 min
August 319 65.1% 1.25% 80 min
September 301 80.4% 1.66% 53 min
October 360 86.9% 0% 67 min
November 308 85% 0.32% 67 min
December 314 71.9% 0.32% 65 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.