Best time to fly Providence to Baltimore

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

Best month

September

93.3% on time · 342 flights

Worst month

July

73.6% on time · 320 flights

Month Flights On time Cancelled When late, by
January 260 91.6% 4.23% 63 min
February 247 88% 4.86% 74 min
March 292 87.9% 1.03% 71 min
April 313 91.7% 0.32% 47 min
May 332 86.4% 0.3% 53 min
June 309 81.1% 1.94% 62 min
July 320 73.6% 2.5% 68 min
August 345 84.1% 1.45% 53 min
September 342 93.3% 0% 55 min
October 344 89.5% 0% 51 min
November 313 91.6% 1.28% 47 min
December 309 84% 0.65% 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.