Best time to fly Nashville to Norfolk

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

Best month

September

95.7% on time · 69 flights

Worst month

July

62.8% on time · 78 flights

Month Flights On time Cancelled When late, by
January 64 95.2% 3.13% 40 min
February 56 85.7% 0% 36 min
March 70 64.7% 1.43% 48 min
April 71 85.9% 0% 51 min
May 76 93.4% 0% 62 min
June 77 69.7% 1.3% 43 min
July 78 62.8% 0% 60 min
August 73 83.6% 0% 42 min
September 69 95.7% 0% 97 min
October 70 85.5% 0% 26 min
November 66 87.7% 0% 55 min
December 66 90.9% 0% 41 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.