Best time to fly Columbia to Chicago

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full CAE 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 50 63.3% 2% 103 min
February 17 87.5% 5.88% 102 min
April 1 0% 0% 100 min
May 41 67.5% 0% 144 min
June 60 85.5% 8.33% 56 min
September 29 89.7% 0% 262 min
October 84 79.8% 0% 112 min
November 90 77.8% 10% 112 min
December 79 69.7% 3.8% 72 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.