Best time to fly Dallas/Fort Worth to Grand Junction

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

Best month

February

89.4% on time · 125 flights

Worst month

April

73.6% on time · 150 flights

Month Flights On time Cancelled When late, by
January 129 85.5% 3.88% 64 min
February 125 89.4% 0.8% 39 min
March 154 88.1% 1.95% 50 min
April 150 73.6% 1.33% 45 min
May 182 78.4% 3.3% 80 min
June 180 74% 3.89% 72 min
July 184 84.4% 2.72% 52 min
August 159 80.3% 0% 47 min
September 178 86.4% 0.56% 46 min
October 184 76% 0.54% 49 min
November 174 82.4% 1.72% 72 min
December 156 82.1% 0% 52 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.