Best time to fly Tampa to Houston

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

Best month

February

95.7% on time · 115 flights

Worst month

June

77.1% on time · 107 flights

Month Flights On time Cancelled When late, by
January 145 89% 0% 54 min
February 115 95.7% 0% 78 min
March 139 86.9% 1.44% 254 min
April 135 84.4% 0% 60 min
May 123 81.3% 0% 83 min
June 107 77.1% 0% 74 min
July 177 78% 0% 80 min
August 149 77.2% 0% 61 min
September 135 94.8% 0% 59 min
October 124 81.5% 0% 68 min
November 151 88.4% 2.65% 92 min
December 150 83.8% 1.33% 62 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.