Best time to fly St. Petersburg to Harrisburg

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full PIE to MDT 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 78.6% 0% 53 min
February 12 75% 0% 79 min
March 13 66.7% 7.69% 39 min
April 12 83.3% 0% 17 min
May 13 46.2% 0% 41 min
June 17 64.7% 0% 89 min
July 17 70.6% 0% 84 min
August 12 91.7% 0% 18 min
September 9 77.8% 0% 76 min
October 14 57.1% 0% 169 min
November 13 100% 0%
December 18 47.1% 5.56% 39 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.