Best time to fly Miami to Houston

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

Best month

April

92.2% on time · 64 flights

Worst month

February

25% on time · 8 flights

Month Flights On time Cancelled When late, by
January 13 69.2% 0% 39 min
February 8 25% 0% 51 min
March 58 70.2% 1.72% 78 min
April 64 92.2% 0% 68 min
May 66 71.2% 0% 56 min
June 77 84.2% 1.3% 66 min
July 123 71.8% 4.07% 73 min
August 61 75% 0% 104 min
September 51 82.4% 0% 103 min
October 41 78% 0% 36 min
November 26 53.8% 0% 70 min
December 24 47.8% 4.17% 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.