Best time to fly St. Petersburg to Cincinnati

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

Best month

February

82.7% on time · 54 flights

Worst month

July

47% on time · 85 flights

Month Flights On time Cancelled When late, by
January 41 76.9% 4.88% 107 min
February 54 82.7% 3.7% 54 min
March 95 75.8% 0% 98 min
April 54 77.8% 0% 143 min
May 64 70.3% 0% 63 min
June 86 57.6% 1.16% 84 min
July 85 47% 2.35% 64 min
August 59 74.6% 0% 129 min
September 45 70.5% 2.22% 43 min
October 52 71.4% 5.77% 60 min
November 42 64.3% 0% 78 min
December 44 61.4% 0% 48 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.