Best time to fly St. Petersburg to Greer

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full PIE to GSP 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 19 89.5% 0% 43 min
February 16 56.3% 0% 75 min
March 18 50% 0% 51 min
April 17 47.1% 0% 68 min
May 21 38.1% 0% 39 min
June 26 50% 0% 58 min
July 22 50% 0% 56 min
August 19 88.2% 5.26% 30 min
September 18 77.8% 0% 40 min
October 20 72.2% 10% 61 min
November 20 90% 0% 33 min
December 24 58.3% 0% 59 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.