Best time to fly Huntsville to Atlanta

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

Best month

September

96% on time · 173 flights

Worst month

December

83.5% on time · 161 flights

Month Flights On time Cancelled When late, by
January 174 88.3% 6.32% 48 min
February 160 92.9% 2.5% 81 min
March 198 87% 3.03% 124 min
April 193 93.1% 2.59% 81 min
May 196 88.7% 1.02% 68 min
June 206 91.1% 1.46% 91 min
July 222 88.2% 0.45% 63 min
August 192 87.8% 1.56% 94 min
September 173 96% 0% 25 min
October 189 93.1% 0% 65 min
November 173 91.8% 1.73% 92 min
December 161 83.5% 1.86% 71 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.