Best time to fly Oklahoma City to Atlanta

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

Best month

September

93.5% on time · 306 flights

Worst month

July

77.4% on time · 323 flights

Month Flights On time Cancelled When late, by
January 290 84.6% 5.86% 107 min
February 283 86.1% 0.71% 89 min
March 336 86.3% 1.79% 96 min
April 304 85.6% 1.97% 102 min
May 311 86.6% 1.29% 69 min
June 303 82.2% 2.97% 82 min
July 323 77.4% 4.02% 95 min
August 322 89.1% 0.62% 77 min
September 306 93.5% 0% 92 min
October 332 91.9% 0% 46 min
November 311 89.8% 1.93% 103 min
December 325 86.3% 0.92% 76 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.