Best time to fly Roswell to Dallas/Fort Worth

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

Best month

December

82.3% on time · 152 flights

Worst month

November

71.6% on time · 146 flights

Month Flights On time Cancelled When late, by
January 154 77.5% 7.79% 136 min
February 131 81.3% 2.29% 62 min
March 155 80.8% 5.81% 101 min
April 150 78.5% 3.33% 121 min
May 137 81.2% 2.19% 114 min
June 176 78.9% 5.11% 135 min
July 184 75.7% 3.26% 126 min
August 185 77.6% 1.08% 154 min
September 158 82.2% 0.63% 99 min
October 154 79.3% 2.6% 112 min
November 146 71.6% 3.42% 85 min
December 152 82.3% 3.29% 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.