Best time to fly Atlanta to Memphis

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

Best month

September

88.8% on time · 269 flights

Worst month

July

76.8% on time · 283 flights

Month Flights On time Cancelled When late, by
January 259 79.7% 6.95% 51 min
February 235 81% 1.7% 45 min
March 294 77.4% 3.06% 72 min
April 307 88.7% 1.63% 79 min
May 330 79.6% 1.52% 77 min
June 318 80.5% 1.26% 64 min
July 283 76.8% 1.06% 63 min
August 282 85.6% 1.42% 60 min
September 269 88.8% 0% 38 min
October 284 86.3% 0% 49 min
November 266 83.9% 1.88% 56 min
December 261 78.4% 2.3% 65 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.