Best time to fly Atlanta to Charlotte Amalie

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

Best month

October

88.6% on time · 70 flights

Worst month

March

66% on time · 160 flights

Month Flights On time Cancelled When late, by
January 159 70.4% 3.14% 62 min
February 134 76.5% 0% 46 min
March 160 66% 0.63% 48 min
April 128 73.4% 0% 37 min
May 123 82.1% 0% 40 min
June 127 80.3% 0% 34 min
July 132 69.8% 1.52% 55 min
August 79 76.3% 3.8% 54 min
September 68 83.6% 0% 33 min
October 70 88.6% 0% 28 min
November 70 76.5% 0% 43 min
December 116 68.1% 0% 46 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.