Best time to fly Denver to Lexington

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

Best month

November

88.1% on time · 60 flights

Worst month

June

50% on time · 60 flights

Month Flights On time Cancelled When late, by
January 62 76.3% 4.84% 48 min
February 56 83.6% 0% 49 min
March 62 80.6% 0% 48 min
April 60 83.3% 0% 39 min
May 62 62.9% 0% 66 min
June 60 50% 0% 81 min
July 62 58.1% 0% 84 min
August 62 67.7% 0% 70 min
September 60 78.3% 0% 35 min
October 62 83.9% 0% 51 min
November 60 88.1% 1.67% 58 min
December 62 82.3% 0% 46 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.