Best time to fly Grand Rapids to Nashville

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full GRR to BNA 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 83.3% 5.26% 48 min
February 16 68.8% 0% 100 min
March 18 76.5% 0% 44 min
April 22 77.3% 0% 97 min
May 32 75% 0% 53 min
June 40 75% 0% 54 min
July 47 77.8% 4.26% 77 min
August 45 77.8% 0% 71 min
September 43 83.7% 0% 97 min
October 43 76.7% 0% 54 min
November 27 70.4% 0% 78 min
December 21 71.4% 0% 45 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.