Best time to fly Chicago to Scranton/Wilkes-Barre

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

Best month

November

81.1% on time · 137 flights

Worst month

July

63.7% on time · 118 flights

Month Flights On time Cancelled When late, by
January 69 70.1% 2.9% 63 min
February 117 74.8% 0.85% 78 min
March 141 77% 1.42% 69 min
April 93 66.3% 3.23% 60 min
May 119 73.7% 0.84% 83 min
June 112 73.1% 3.57% 60 min
July 118 63.7% 4.24% 62 min
August 115 75.9% 2.61% 47 min
September 106 80.2% 0% 46 min
October 116 77.6% 0% 38 min
November 137 81.1% 3.65% 83 min
December 110 67.9% 0.91% 71 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.