Best time to fly St. Petersburg to Knoxville

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full PIE to TYS 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 32 76.7% 6.25% 62 min
February 36 88.6% 0% 99 min
March 58 81% 0% 98 min
April 45 84.4% 0% 59 min
May 48 85.4% 0% 52 min
June 51 82% 1.96% 79 min
July 45 57.8% 0% 90 min
August 34 67.6% 0% 157 min
September 39 82.1% 0% 78 min
October 44 58.1% 0% 38 min
November 42 70.7% 0% 81 min
December 42 57.1% 0% 81 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.