Best time to fly Dallas/Fort Worth to Provo

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

Best month

December

85% on time · 60 flights

Worst month

January

67.2% on time · 62 flights

Month Flights On time Cancelled When late, by
January 62 67.2% 6.45% 69 min
February 56 75% 0% 84 min
March 62 75% 1.61% 90 min
April 60 72.9% 1.67% 49 min
May 58 75% 3.45% 48 min
June 60 72.4% 3.33% 68 min
July 93 78.7% 3.23% 164 min
August 66 73.4% 3.03% 79 min
September 60 80% 0% 94 min
October 62 71% 0% 63 min
November 59 75% 3.39% 60 min
December 60 85% 0% 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.