Best time to fly Omaha to Houston

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

Best month

November

94.8% on time · 61 flights

Worst month

June

72.4% on time · 77 flights

Month Flights On time Cancelled When late, by
January 84 92.9% 0% 57 min
February 79 89.9% 0% 80 min
March 73 87.5% 1.37% 108 min
April 56 92.9% 0% 86 min
May 73 86.3% 0% 82 min
June 77 72.4% 0% 61 min
July 66 86.4% 0% 135 min
August 65 85.9% 1.54% 101 min
September 60 88.3% 0% 36 min
October 61 86.9% 0% 51 min
November 61 94.8% 4.92% 72 min
December 73 78.1% 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.