Best time to fly Charlottesville to Chicago

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

Best month

November

79.6% on time · 179 flights

Worst month

December

52.2% on time · 168 flights

Month Flights On time Cancelled When late, by
January 147 66.7% 5.44% 97 min
February 132 70.5% 0% 114 min
March 200 66.5% 6% 137 min
April 222 69.5% 4.5% 83 min
May 200 69.2% 0.5% 93 min
June 161 76.6% 1.24% 125 min
July 122 61% 2.46% 121 min
August 134 66.2% 1.49% 90 min
September 147 77.2% 0% 102 min
October 160 78.1% 0% 53 min
November 179 79.6% 6.7% 88 min
December 168 52.2% 4.17% 140 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.