Best time to fly Fayetteville to Denver

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

Best month

December

87.2% on time · 204 flights

Worst month

July

66.4% on time · 217 flights

Month Flights On time Cancelled When late, by
January 192 77.2% 1.56% 102 min
February 168 77.4% 2.38% 73 min
March 212 80.6% 0.47% 71 min
April 195 79.9% 0.51% 68 min
May 223 77.3% 0.45% 115 min
June 239 68.5% 0.42% 84 min
July 217 66.4% 0.92% 76 min
August 220 74.7% 0.91% 70 min
September 219 78% 0% 67 min
October 232 83.6% 0% 65 min
November 213 86.2% 1.41% 92 min
December 204 87.2% 0.49% 78 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.