Best time to fly Stillwater to Dallas/Fort Worth

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

Best month

September

88.9% on time · 120 flights

Worst month

April

70.8% on time · 120 flights

Month Flights On time Cancelled When late, by
January 124 84.7% 10.48% 106 min
February 112 87.7% 5.36% 81 min
March 124 81% 4.84% 116 min
April 120 70.8% 5.83% 116 min
May 124 82.5% 3.23% 156 min
June 120 85.3% 3.33% 91 min
July 124 85% 2.42% 100 min
August 124 87.1% 0% 78 min
September 120 88.9% 1.67% 61 min
October 124 85.5% 0% 79 min
November 118 74.6% 3.39% 117 min
December 123 77.5% 2.44% 161 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.