Best time to fly Knoxville to New York

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

Best month

April

91.4% on time · 82 flights

Worst month

June

67.6% on time · 76 flights

Month Flights On time Cancelled When late, by
January 78 78.7% 3.85% 48 min
February 72 79.1% 5.56% 83 min
March 78 79.5% 0% 38 min
April 82 91.4% 1.22% 62 min
May 76 76.7% 3.95% 70 min
June 76 67.6% 9.21% 89 min
July 186 77% 10.22% 142 min
August 182 81.7% 6.59% 127 min
September 141 88.6% 0% 93 min
October 146 84.8% 0.68% 76 min
November 150 90% 0% 48 min
December 146 80.8% 0% 48 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.