Best time to fly Dayton to Dallas/Fort Worth

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

Best month

October

87.8% on time · 242 flights

Worst month

June

69.7% on time · 232 flights

Month Flights On time Cancelled When late, by
January 222 75.6% 5.86% 123 min
February 191 77.7% 1.05% 77 min
March 207 81.2% 3.38% 100 min
April 232 77.1% 2.59% 83 min
May 245 77.2% 2.86% 99 min
June 232 69.7% 4.31% 75 min
July 246 77.4% 1.22% 75 min
August 244 82.6% 0.82% 69 min
September 239 76.9% 0% 92 min
October 242 87.8% 1.24% 102 min
November 230 85.3% 1.74% 81 min
December 241 76.5% 0.83% 87 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.