Best time to fly Colorado Springs to Houston

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

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 6 100% 0%
February 16 75% 0% 168 min
March 31 86.7% 0% 69 min
April 30 76.7% 0% 84 min
May 21 81% 0% 81 min
July 31 71% 0% 85 min
August 31 87.1% 0% 129 min
September 30 100% 0%
October 36 94.4% 0% 118 min
November 30 86.7% 0% 50 min
December 16 100% 6.25%

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.