Best time to fly Tucson to Salt Lake City

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

Best month

July

97.8% on time · 92 flights

Worst month

November

88.4% on time · 88 flights

Month Flights On time Cancelled When late, by
January 95 92.6% 0% 102 min
February 92 90.2% 0% 95 min
March 103 94.1% 0.97% 84 min
April 94 95.7% 0% 26 min
May 93 96.8% 0% 63 min
June 90 88.9% 0% 67 min
July 92 97.8% 0% 85 min
August 93 97.8% 0% 105 min
September 90 93.3% 0% 102 min
October 92 97.8% 0% 74 min
November 88 88.4% 2.27% 64 min
December 90 90% 0% 81 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.