Best time to fly Providence to Detroit

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

Best month

October

89.5% on time · 88 flights

Worst month

July

53.6% on time · 29 flights

Month Flights On time Cancelled When late, by
January 54 61.2% 7.41% 140 min
February 56 66% 5.36% 81 min
March 62 65.5% 6.45% 83 min
April 76 84.2% 0% 96 min
May 19 78.9% 0% 90 min
June 72 80% 2.78% 90 min
July 29 53.6% 3.45% 118 min
August 73 83.6% 0% 74 min
September 82 80.2% 0% 49 min
October 88 89.5% 1.14% 81 min
November 83 77.8% 2.41% 168 min
December 63 74.6% 6.35% 101 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.