Best time to fly Nashville to Minneapolis

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

Best month

September

90.8% on time · 141 flights

Worst month

December

70.1% on time · 122 flights

Month Flights On time Cancelled When late, by
January 113 88% 4.42% 52 min
February 101 80% 0.99% 50 min
March 149 85.9% 4.7% 52 min
April 160 86.8% 0.63% 45 min
May 171 76.3% 1.17% 63 min
June 171 71.2% 0.58% 41 min
July 154 83.8% 0% 89 min
August 149 89.9% 0% 100 min
September 141 90.8% 0% 29 min
October 154 89.6% 0% 38 min
November 136 87.3% 1.47% 54 min
December 122 70.1% 4.1% 56 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.