Best time to fly Tampa to Baltimore

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

Best month

September

89.5% on time · 200 flights

Worst month

July

63.7% on time · 261 flights

Month Flights On time Cancelled When late, by
January 206 87.4% 3.88% 38 min
February 204 77.4% 4.9% 41 min
March 262 80.6% 3.44% 53 min
April 266 83.7% 0.38% 62 min
May 255 78.7% 0.39% 55 min
June 203 81.9% 0.99% 56 min
July 261 63.7% 4.98% 73 min
August 229 76.8% 0.44% 64 min
September 200 89.5% 0% 62 min
October 215 82.5% 1.4% 61 min
November 205 85.6% 1.95% 51 min
December 211 82.3% 0.95% 46 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.