Best time to fly Houston to Midland/Odessa

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

Best month

September

89.3% on time · 123 flights

Worst month

June

57.1% on time · 117 flights

Month Flights On time Cancelled When late, by
January 91 80.9% 2.2% 55 min
February 96 80.2% 0% 70 min
March 105 68% 1.9% 82 min
April 120 83.3% 0% 59 min
May 113 67% 0.88% 79 min
June 117 57.1% 2.56% 88 min
July 175 69.6% 3.43% 92 min
August 166 83.7% 0% 57 min
September 123 89.3% 0% 45 min
October 114 84.1% 0% 89 min
November 190 85.8% 0% 77 min
December 123 82.1% 0% 65 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.