Best time to fly Dallas/Fort Worth to Columbus

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

Best month

September

81.4% on time · 284 flights

Worst month

June

61.8% on time · 299 flights

Month Flights On time Cancelled When late, by
January 262 76.7% 8.4% 91 min
February 237 76.2% 0% 51 min
March 298 69.3% 2.01% 60 min
April 292 68.5% 2.05% 68 min
May 307 66.1% 2.93% 91 min
June 299 61.8% 4.35% 71 min
July 316 63.9% 3.48% 59 min
August 323 72.9% 1.55% 85 min
September 284 81.4% 0.7% 57 min
October 324 77.1% 0.31% 48 min
November 307 81.4% 1.63% 60 min
December 303 74% 0.66% 60 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.