Best time to fly Dallas/Fort Worth to New York

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

Best month

February

84.8% on time · 108 flights

Worst month

June

57.9% on time · 180 flights

Month Flights On time Cancelled When late, by
January 127 73.3% 8.66% 85 min
February 108 84.8% 8.33% 109 min
March 122 77.5% 1.64% 56 min
April 143 82.5% 0% 49 min
May 180 78.1% 1.11% 75 min
June 180 57.9% 3.89% 73 min
July 217 71.3% 4.61% 60 min
August 217 76.5% 1.84% 60 min
September 185 82.2% 2.16% 58 min
October 178 83% 1.12% 89 min
November 178 84.6% 1.69% 87 min
December 174 76.2% 3.45% 68 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.