Best time to fly Newark to Columbus

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

Best month

May

93.2% on time · 179 flights

Worst month

July

64.8% on time · 160 flights

Month Flights On time Cancelled When late, by
January 171 87.8% 8.77% 42 min
February 147 91.7% 9.52% 70 min
March 154 83.7% 0.65% 118 min
April 146 91.1% 0% 66 min
May 179 93.2% 1.68% 66 min
June 176 79.5% 2.84% 130 min
July 160 64.8% 11.25% 99 min
August 151 79.1% 1.99% 77 min
September 200 87.6% 3.5% 69 min
October 189 83.5% 3.17% 60 min
November 195 80.7% 6.67% 100 min
December 177 79% 5.65% 81 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.