Best time to fly Indianapolis to Miami

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

Best month

October

92.9% on time · 56 flights

Worst month

December

62.5% on time · 88 flights

Month Flights On time Cancelled When late, by
January 122 76.7% 4.1% 97 min
February 86 87.2% 0% 35 min
March 88 80% 2.27% 51 min
April 82 90.2% 0% 222 min
May 84 79.8% 0% 35 min
June 62 87.1% 0% 83 min
July 62 65.6% 0% 87 min
August 62 66.7% 1.61% 122 min
September 52 78.8% 0% 63 min
October 56 92.9% 0% 66 min
November 84 80.7% 1.19% 74 min
December 88 62.5% 0% 133 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.