Best time to fly Atlanta to Gulfport/Biloxi

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

Best month

October

90.9% on time · 231 flights

Worst month

July

73.4% on time · 232 flights

Month Flights On time Cancelled When late, by
January 187 81.8% 9.09% 59 min
February 191 82.7% 0% 63 min
March 226 79.9% 2.65% 68 min
April 227 87.6% 0.44% 52 min
May 236 74% 0% 66 min
June 228 77.1% 2.19% 72 min
July 232 73.4% 3.88% 82 min
August 229 88.5% 0% 53 min
September 218 89.4% 0.46% 130 min
October 231 90.9% 0% 48 min
November 210 89.9% 1.43% 60 min
December 212 83.1% 1.89% 75 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.