Best time to fly Birmingham to Nashville

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full BHM 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 31 93.1% 6.45% 50 min
February 28 67.9% 0% 59 min
March 58 64.3% 3.45% 49 min
April 60 85% 0% 26 min
May 62 75.8% 0% 36 min
June 59 77.6% 1.69% 64 min
July 31 53.3% 3.23% 37 min
August 31 74.2% 0% 57 min
September 30 80% 0% 39 min
October 31 54.8% 0% 34 min
November 32 84.4% 0% 65 min
December 31 90.3% 0% 42 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.