Best time to fly Monterey to Denver

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

Best month

January

98.4% on time · 62 flights

Worst month

July

85.2% on time · 62 flights

Month Flights On time Cancelled When late, by
January 62 98.4% 0% 58 min
February 55 96.4% 0% 197 min
March 63 93.5% 1.59% 65 min
April 61 91.8% 0% 30 min
May 62 96.8% 0% 63 min
June 60 89.8% 1.67% 136 min
July 62 85.2% 0% 65 min
August 61 89.8% 0% 45 min
September 60 91.7% 0% 75 min
October 62 98.4% 0% 25 min
November 59 94.9% 0% 181 min
December 62 90.2% 0% 79 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.