Best time to fly Nashville to Grand Rapids

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

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 19 77.8% 5.26% 61 min
February 16 75% 0% 128 min
March 18 70.6% 0% 52 min
April 22 81.8% 0% 95 min
May 32 78.1% 0% 64 min
June 40 67.5% 0% 45 min
July 47 80% 4.26% 80 min
August 45 71.1% 0% 48 min
September 43 86% 0% 177 min
October 43 74.4% 0% 52 min
November 27 74.1% 0% 74 min
December 21 81% 0% 93 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.