Best time to fly Newark to Knoxville

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

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 25 87.5% 4% 116 min
February 16 93.3% 6.25% 27 min
March 22 86.4% 0% 35 min
April 19 94.7% 0% 45 min
May 25 56% 0% 75 min
June 30 90% 0% 35 min
July 35 85.3% 2.86% 75 min
August 22 81.8% 0% 83 min
September 20 95% 0% 16 min
October 30 80% 0% 52 min
November 26 69.2% 0% 52 min
December 46 67.4% 0% 52 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.