Best time to fly Bozeman to Salt Lake City

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

Best month

September

94.5% on time · 181 flights

Worst month

February

82.6% on time · 168 flights

Month Flights On time Cancelled When late, by
January 184 90.2% 0.54% 96 min
February 168 82.6% 0.6% 63 min
March 186 83.8% 0.54% 45 min
April 157 86% 0% 108 min
May 180 91.1% 0% 76 min
June 224 94.2% 0% 193 min
July 241 88.2% 1.24% 86 min
August 231 88.7% 0% 66 min
September 181 94.5% 0% 58 min
October 184 92.9% 0% 73 min
November 176 89.5% 2.27% 91 min
December 180 87.2% 0% 47 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.