Best time to fly Nashville to Sacramento

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full BNA to SMF 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 14 91.7% 14.29% 21 min
February 19 57.9% 0% 47 min
March 29 72.4% 0% 35 min
April 30 70% 0% 36 min
May 31 61.3% 0% 32 min
June 34 44.1% 0% 60 min
July 35 57.1% 0% 44 min
August 32 75% 0% 66 min
September 30 65.5% 0% 29 min
October 31 77.4% 0% 33 min
November 30 80% 0% 39 min
December 31 67.7% 0% 28 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.