Best time to fly Dallas/Fort Worth to Fort Smith

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

Best month

October

90.9% on time · 210 flights

Worst month

July

72% on time · 220 flights

Month Flights On time Cancelled When late, by
January 185 86.9% 9.19% 62 min
February 167 88.9% 2.99% 39 min
March 186 83.1% 1.61% 53 min
April 180 86% 3.89% 51 min
May 195 83.9% 4.62% 86 min
June 221 72.3% 3.17% 58 min
July 220 72% 2.73% 57 min
August 213 83.9% 0.47% 45 min
September 217 87% 0.46% 54 min
October 210 90.9% 0.95% 51 min
November 185 84.9% 7.03% 53 min
December 184 84.1% 0.54% 50 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.