Best time to fly Houston to Corpus Christi

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

Best month

September

96.3% on time · 81 flights

Worst month

June

63.3% on time · 85 flights

Month Flights On time Cancelled When late, by
January 42 89.5% 9.52% 221 min
February 36 88.9% 0% 42 min
March 61 79.3% 4.92% 163 min
April 61 73.8% 0% 62 min
May 120 75.4% 1.67% 91 min
June 85 63.3% 7.06% 155 min
July 86 67.5% 3.49% 124 min
August 110 83.6% 0% 84 min
September 81 96.3% 1.23% 20 min
October 94 81.9% 0% 65 min
November 128 83.5% 0% 92 min
December 32 68.8% 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.