Best time to fly St. Petersburg to Bloomington/Normal

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full PIE to BMI 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 94.7% 0% 103 min
February 16 86.7% 6.25% 99 min
March 20 90% 0% 21 min
April 16 100% 0%
May 18 88.9% 0% 32 min
June 18 83.3% 0% 43 min
July 18 70.6% 0% 108 min
August 18 77.8% 0% 80 min
September 18 88.9% 0% 267 min
October 17 100% 5.88%
November 18 83.3% 0% 111 min
December 24 95.8% 0% 15 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.