Best time to fly New York to Columbus

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

Best month

September

91.9% on time · 499 flights

Worst month

June

73.4% on time · 466 flights

Month Flights On time Cancelled When late, by
January 522 81.1% 4.6% 63 min
February 480 79.5% 5.63% 66 min
March 545 75.3% 6.24% 73 min
April 545 81.5% 0.37% 75 min
May 527 76.3% 2.28% 74 min
June 466 73.4% 4.08% 90 min
July 503 75.6% 6.36% 92 min
August 473 82% 4.65% 66 min
September 499 91.9% 0.2% 87 min
October 562 82.9% 1.6% 64 min
November 559 83.4% 0.72% 67 min
December 498 76.4% 2.61% 66 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.