Best time to fly New York to Charlotte

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

Best month

September

85.8% on time · 897 flights

Worst month

July

68.2% on time · 936 flights

Month Flights On time Cancelled When late, by
January 769 82.8% 6.11% 107 min
February 691 81.3% 5.64% 102 min
March 761 79.2% 2.89% 114 min
April 745 82.1% 0.54% 76 min
May 711 76.8% 2.39% 112 min
June 711 77.8% 4.5% 109 min
July 936 68.2% 5.88% 108 min
August 925 77.7% 5.73% 100 min
September 897 85.8% 1.9% 93 min
October 964 80.4% 1.24% 62 min
November 926 80.5% 1.3% 83 min
December 891 73.5% 1.57% 77 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.