Best time to fly Kansas City to Houston

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full MCI 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 36 88.9% 0% 24 min
February 46 95.7% 0% 49 min
March 34 91.2% 0% 85 min
April 31 83.9% 0% 65 min
May 62 74.2% 0% 61 min
June 63 78.7% 3.17% 60 min
July 27 92.3% 3.7% 37 min
August 28 78.6% 0% 71 min
September 30 100% 0%
October 31 90.3% 0% 56 min
November 33 84.4% 3.03% 139 min
December 31 83.9% 0% 107 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.