Best time to fly Philadelphia to Tampa

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

Best month

November

78.5% on time · 411 flights

Worst month

August

63.1% on time · 415 flights

Month Flights On time Cancelled When late, by
January 397 69.7% 3.78% 63 min
February 446 74.2% 4.04% 70 min
March 619 75.5% 2.26% 94 min
April 567 76.2% 0.71% 74 min
May 462 73.2% 0.87% 60 min
June 384 71.1% 1.04% 71 min
July 363 65.1% 3.31% 80 min
August 415 63.1% 4.1% 94 min
September 370 77.6% 2.43% 70 min
October 417 76.7% 5.28% 90 min
November 411 78.5% 0.49% 80 min
December 416 66.8% 0.48% 83 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.