Best time to fly Salt Lake City to Reno

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

Best month

September

96.4% on time · 197 flights

Worst month

February

79.6% on time · 168 flights

Month Flights On time Cancelled When late, by
January 184 87% 0% 38 min
February 168 79.6% 0.6% 75 min
March 186 86.4% 0% 60 min
April 180 86.7% 0% 38 min
May 186 89.7% 0.54% 53 min
June 201 82.6% 0% 58 min
July 210 83% 0.95% 65 min
August 208 86.1% 0% 63 min
September 197 96.4% 0% 119 min
October 207 93.7% 0% 55 min
November 176 94.3% 0% 120 min
December 180 82.6% 0.56% 53 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.