Best time to fly Dallas/Fort Worth to Colorado Springs

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

Best month

September

81.4% on time · 360 flights

Worst month

July

57.3% on time · 367 flights

Month Flights On time Cancelled When late, by
January 276 75.6% 6.52% 100 min
February 280 73.6% 0.71% 69 min
March 320 77.1% 3.75% 67 min
April 298 72.9% 2.35% 59 min
May 347 72.5% 3.46% 67 min
June 360 57.5% 3.89% 79 min
July 367 57.3% 3.27% 67 min
August 370 70.6% 2.16% 69 min
September 360 81.4% 1.39% 81 min
October 366 79.7% 0.55% 54 min
November 294 76.6% 3.4% 81 min
December 307 73.6% 0.65% 74 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.