Best time to fly Dallas/Fort Worth to Appleton

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

Best month

September

85% on time · 60 flights

Worst month

July

67.2% on time · 64 flights

Month Flights On time Cancelled When late, by
January 62 81% 4.84% 83 min
February 56 83.9% 0% 54 min
March 62 79.3% 4.84% 55 min
April 62 75.4% 0% 46 min
May 73 75.3% 0% 76 min
June 86 72.9% 1.16% 71 min
July 64 67.2% 0% 88 min
August 62 79% 0% 50 min
September 60 85% 0% 38 min
October 62 82.3% 0% 38 min
November 60 84.7% 0% 68 min
December 62 80.3% 1.61% 60 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.