Best time to fly New York to Columbus

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

Best month

November

88.1% on time · 295 flights

Worst month

June

70% on time · 264 flights

Month Flights On time Cancelled When late, by
January 267 82.5% 5.62% 73 min
February 248 80.3% 4.84% 79 min
March 278 83.2% 1.44% 134 min
April 267 82.4% 0% 61 min
May 266 76.4% 1.13% 68 min
June 264 70% 6.06% 80 min
July 309 70.8% 4.53% 85 min
August 310 78.8% 5.48% 92 min
September 300 81.8% 0.67% 58 min
October 310 84% 0.97% 62 min
November 295 88.1% 2.71% 54 min
December 278 77.7% 1.44% 57 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.