Best time to fly Denver to Hayden

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

Best month

October

88.8% on time · 223 flights

Worst month

June

64.6% on time · 238 flights

Month Flights On time Cancelled When late, by
January 278 76.5% 2.16% 50 min
February 267 65.2% 0.37% 83 min
March 313 74.2% 0.64% 56 min
April 191 78.8% 1.05% 72 min
May 199 68% 1.01% 64 min
June 238 64.6% 0% 72 min
July 247 75.1% 0.81% 76 min
August 240 76.2% 0% 73 min
September 225 86.7% 0% 50 min
October 223 88.8% 0% 37 min
November 207 83.1% 1.93% 81 min
December 262 76.9% 0.76% 94 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.