Best time to fly Charlotte Amalie to Atlanta

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

Best month

September

94.1% on time · 68 flights

Worst month

July

75.6% on time · 132 flights

Month Flights On time Cancelled When late, by
January 159 82.1% 3.77% 108 min
February 134 76% 2.24% 70 min
March 160 77.1% 2.5% 94 min
April 128 88.8% 0.78% 70 min
May 123 80.5% 0% 51 min
June 127 92.7% 0.79% 75 min
July 132 75.6% 1.52% 140 min
August 79 76.4% 3.8% 205 min
September 68 94.1% 0% 347 min
October 70 92.8% 0% 44 min
November 70 85.5% 1.43% 68 min
December 116 77.4% 0.86% 100 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.