Best time to fly Denver to Cincinnati

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

Best month

February

87.3% on time · 197 flights

Worst month

June

65.4% on time · 265 flights

Month Flights On time Cancelled When late, by
January 220 81.6% 3.64% 49 min
February 197 87.3% 0% 61 min
March 244 76.2% 0% 45 min
April 232 82.5% 1.29% 56 min
May 244 75.3% 0% 74 min
June 265 65.4% 0.38% 78 min
July 317 66% 1.26% 67 min
August 298 72.3% 0.67% 71 min
September 294 76.1% 0% 56 min
October 301 84.4% 0% 44 min
November 249 82.9% 1.2% 52 min
December 238 76.1% 0% 56 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.