Best time to fly Orlando to Philadelphia

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

Best month

September

82.3% on time · 401 flights

Worst month

July

60.6% on time · 428 flights

Month Flights On time Cancelled When late, by
January 449 71.2% 6.9% 92 min
February 435 71% 5.75% 82 min
March 491 68.6% 3.87% 78 min
April 505 75.4% 0.79% 65 min
May 449 80.8% 0.22% 92 min
June 408 71.3% 0.74% 116 min
July 428 60.6% 4.21% 116 min
August 455 70% 0.22% 72 min
September 401 82.3% 0.25% 57 min
October 457 72.1% 0.22% 74 min
November 407 77.4% 2.21% 80 min
December 447 65.8% 1.79% 75 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.