Best time to fly Idaho Falls to Dallas/Fort Worth

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

Best month

February

83.9% on time · 56 flights

Worst month

March

66.1% on time · 62 flights

Month Flights On time Cancelled When late, by
January 62 71.2% 4.84% 169 min
February 56 83.9% 0% 84 min
March 62 66.1% 3.23% 68 min
April 60 72.4% 3.33% 65 min
May 100 81.9% 3% 107 min
June 120 77% 3.33% 56 min
July 123 82.8% 0.81% 53 min
August 124 79.3% 0% 58 min
September 120 83.9% 0.83% 92 min
October 124 68.5% 0% 111 min
November 63 66.1% 1.59% 78 min
December 61 74.1% 1.64% 105 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.