Best time to fly Dickinson to Denver

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

Best month

September

87.5% on time · 112 flights

Worst month

June

63.6% on time · 107 flights

Month Flights On time Cancelled When late, by
January 119 75.2% 5.04% 153 min
February 108 77.9% 2.78% 98 min
March 119 78.1% 4.2% 91 min
April 108 67.6% 2.78% 88 min
May 110 71.3% 1.82% 79 min
June 107 63.6% 0% 90 min
July 115 76.3% 0.87% 91 min
August 114 81.1% 0.88% 137 min
September 112 87.5% 0% 101 min
October 120 86.6% 0% 79 min
November 114 75.5% 3.51% 131 min
December 119 77.8% 0.84% 112 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.