Best time to fly Denver to Oklahoma City

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

Best month

November

87.6% on time · 249 flights

Worst month

July

64% on time · 321 flights

Month Flights On time Cancelled When late, by
January 239 84.1% 5.44% 52 min
February 207 85% 0% 74 min
March 245 73.4% 0.41% 82 min
April 244 83.7% 0.82% 35 min
May 269 77.6% 0% 47 min
June 280 73.1% 0% 70 min
July 321 64% 0.93% 71 min
August 296 68.5% 0.34% 60 min
September 280 76.8% 0% 47 min
October 282 82.9% 0.35% 53 min
November 249 87.6% 0% 47 min
December 252 73.8% 0% 64 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.