Best time to fly Long Beach to Salt Lake City

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

Best month

March

90.9% on time · 285 flights

Worst month

December

84.6% on time · 261 flights

Month Flights On time Cancelled When late, by
January 261 90% 0% 73 min
February 259 89.1% 0.77% 67 min
March 285 90.9% 0% 51 min
April 267 90.6% 0% 107 min
May 274 85.7% 0.36% 73 min
June 254 88% 1.18% 67 min
July 256 87% 0.78% 87 min
August 268 89.9% 0% 60 min
September 261 89.2% 0% 64 min
October 267 88.4% 0% 103 min
November 255 89.4% 0% 63 min
December 261 84.6% 0.38% 101 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.