Best time to fly Salt Lake City to Long Beach

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

Best month

September

93.5% on time · 261 flights

Worst month

February

81.3% on time · 259 flights

Month Flights On time Cancelled When late, by
January 261 89.6% 0% 51 min
February 259 81.3% 0.39% 47 min
March 285 87% 0% 46 min
April 267 83.5% 0% 49 min
May 274 87.9% 0.36% 52 min
June 254 92% 1.18% 55 min
July 256 84.7% 0.39% 62 min
August 268 90.3% 0% 43 min
September 261 93.5% 0% 46 min
October 267 86.5% 0% 41 min
November 255 86.7% 0% 52 min
December 261 83% 0.38% 49 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.