Best time to fly Orlando to Pittsburgh

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

Best month

September

87.3% on time · 301 flights

Worst month

July

63.9% on time · 359 flights

Month Flights On time Cancelled When late, by
January 358 82.8% 2.51% 49 min
February 377 78.1% 0.53% 58 min
March 449 70.6% 3.12% 67 min
April 394 80.2% 0% 47 min
May 340 76.1% 0.29% 62 min
June 364 69.7% 0% 67 min
July 359 63.9% 1.11% 68 min
August 335 66.6% 1.49% 80 min
September 301 87.3% 0.33% 45 min
October 380 83% 3.68% 54 min
November 333 84.9% 0.3% 49 min
December 345 75.4% 0% 64 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.