Best time to fly Newark to Charlotte

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

Best month

May

88.2% on time · 273 flights

Worst month

December

70.2% on time · 317 flights

Month Flights On time Cancelled When late, by
January 342 83.6% 10.82% 118 min
February 315 82.5% 9.21% 75 min
March 359 81.4% 2.23% 90 min
April 306 85.9% 0.65% 56 min
May 273 88.2% 0.73% 76 min
June 271 84.3% 1.11% 87 min
July 324 71% 7.41% 121 min
August 304 82.3% 1.64% 99 min
September 279 85.5% 1.08% 97 min
October 323 76.3% 0.62% 66 min
November 340 73.6% 4.12% 100 min
December 317 70.2% 2.21% 117 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.