Best time to fly Providence to Washington

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

Best month

October

85.6% on time · 450 flights

Worst month

February

61.4% on time · 391 flights

Month Flights On time Cancelled When late, by
January 423 73.8% 9.46% 60 min
February 391 61.4% 11% 77 min
March 421 71.6% 5.46% 73 min
April 420 80.4% 0.48% 74 min
May 444 70.2% 2.25% 71 min
June 439 67.2% 7.52% 114 min
July 457 70.5% 10.28% 111 min
August 427 76.8% 3.04% 94 min
September 445 84.1% 0.45% 70 min
October 450 85.6% 0% 73 min
November 392 83.9% 1.53% 60 min
December 391 74.9% 1.02% 76 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.