Best time to fly Houston to Meridian

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

Best month

October

86.9% on time · 107 flights

Worst month

May

61.9% on time · 106 flights

Month Flights On time Cancelled When late, by
January 107 84% 6.54% 78 min
February 96 66.7% 0% 147 min
March 106 76.9% 1.89% 83 min
April 103 75.7% 0% 130 min
May 106 61.9% 0.94% 130 min
June 103 61.9% 4.85% 131 min
July 84 66.7% 7.14% 90 min
August 84 71.1% 0% 93 min
September 103 86.3% 0.97% 130 min
October 107 86.9% 0% 109 min
November 102 77% 0% 61 min
December 108 81.1% 0.93% 103 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.