Best time to fly Denver to Lubbock

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

Best month

October

83.7% on time · 135 flights

Worst month

June

57.9% on time · 168 flights

Month Flights On time Cancelled When late, by
January 137 61.8% 3.65% 90 min
February 143 67.1% 0% 118 min
March 192 80.2% 2.6% 71 min
April 166 65.9% 0.6% 76 min
May 172 60.7% 0.58% 97 min
June 168 57.9% 1.19% 87 min
July 134 61.2% 2.24% 89 min
August 136 66.4% 0.74% 94 min
September 128 77.3% 0% 56 min
October 135 83.7% 0% 115 min
November 158 75% 3.16% 83 min
December 156 77.6% 0% 85 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.