Best time to fly Nashville to Dallas/Fort Worth

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

Best month

February

83.5% on time · 262 flights

Worst month

July

63.4% on time · 318 flights

Month Flights On time Cancelled When late, by
January 307 82% 11.4% 109 min
February 262 83.5% 0.38% 109 min
March 279 76.3% 2.15% 115 min
April 292 75.7% 1.37% 110 min
May 324 69.4% 2.78% 111 min
June 327 71.7% 6.12% 99 min
July 318 63.4% 3.77% 93 min
August 296 69.5% 4.73% 79 min
September 287 77.8% 2.09% 122 min
October 313 73.3% 1.92% 62 min
November 256 77.6% 3.13% 72 min
December 266 81.6% 0% 58 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.