Best time to fly Chattanooga to Atlanta

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

Best month

February

96.6% on time · 61 flights

Worst month

August

82.9% on time · 113 flights

Month Flights On time Cancelled When late, by
January 83 90.5% 10.84% 85 min
February 61 96.6% 3.28% 33 min
March 81 85.5% 6.17% 135 min
April 98 86.6% 1.02% 61 min
May 120 87.2% 2.5% 122 min
June 147 85.5% 1.36% 81 min
July 159 84.6% 1.89% 128 min
August 113 82.9% 1.77% 69 min
September 137 91.2% 0% 41 min
October 143 90.2% 0% 123 min
November 117 87.1% 0.85% 91 min
December 77 85.5% 1.3% 54 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.