Best time to fly Allentown/Bethlehem/Easton to Chicago

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

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 52 68.1% 5.77% 97 min
February 35 73.5% 2.86% 137 min
March 28 52% 10.71% 130 min
April 5 40% 0% 71 min
May 70 67.2% 4.29% 256 min
June 80 75.7% 6.25% 79 min
August 15 86.7% 0% 54 min
September 30 90% 0% 72 min
October 25 92% 0% 29 min
December 17 62.5% 5.88% 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.