Best time to fly Atlanta to Wilmington

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

Best month

October

91.8% on time · 234 flights

Worst month

July

74.3% on time · 241 flights

Month Flights On time Cancelled When late, by
January 71 86.8% 4.23% 98 min
February 69 88.1% 2.9% 86 min
March 114 81.3% 1.75% 51 min
April 137 85.3% 0.73% 105 min
May 178 75.7% 0.56% 50 min
June 220 79.2% 1.82% 87 min
July 241 74.3% 4.15% 71 min
August 241 87.1% 0.41% 61 min
September 232 87.9% 0% 62 min
October 234 91.8% 0% 37 min
November 217 86.5% 0.92% 49 min
December 211 77.3% 0% 62 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.