Best time to fly Houston to Baton Rouge

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

Best month

September

100% on time · 6 flights

Worst month

May

58.3% on time · 38 flights

Month Flights On time Cancelled When late, by
January 102 81.1% 6.86% 59 min
February 65 84.6% 0% 81 min
March 60 72.9% 1.67% 62 min
April 102 76.5% 0% 57 min
May 38 58.3% 2.63% 72 min
June 27 64% 7.41% 95 min
July 35 74.3% 0% 184 min
August 25 80% 0% 66 min
September 6 100% 0%
October 61 86.9% 0% 65 min
November 160 81.9% 0% 66 min
December 36 69.4% 0% 57 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.