Best time to fly Providence to Chicago

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

Best month

May

82.2% on time · 332 flights

Worst month

July

67.5% on time · 242 flights

Month Flights On time Cancelled When late, by
January 188 77.1% 4.79% 78 min
February 183 72.8% 7.65% 63 min
March 217 78.2% 4.61% 93 min
April 269 82% 1.12% 61 min
May 332 82.2% 0% 76 min
June 270 77.5% 4.07% 107 min
July 242 67.5% 2.07% 75 min
August 234 70.6% 2.14% 109 min
September 233 76.6% 0.43% 71 min
October 274 78.8% 0% 123 min
November 286 81% 2.45% 85 min
December 214 71.9% 1.87% 100 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.