Best time to fly Durango to Denver

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

Best month

October

87.3% on time · 371 flights

Worst month

July

69.3% on time · 336 flights

Month Flights On time Cancelled When late, by
January 364 80.7% 0% 110 min
February 331 78% 0.91% 109 min
March 372 82.4% 2.15% 107 min
April 366 82.6% 0.55% 90 min
May 391 77.4% 0.26% 79 min
June 356 72% 0.56% 109 min
July 336 69.3% 2.08% 82 min
August 341 75.5% 0.59% 102 min
September 334 84.1% 0% 54 min
October 371 87.3% 0.27% 101 min
November 355 82.5% 4.79% 107 min
December 372 86.2% 0.81% 90 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.