Best time to fly Sacramento to Long Beach

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

Best month

October

90.8% on time · 163 flights

Worst month

June

81% on time · 142 flights

Month Flights On time Cancelled When late, by
January 162 90.7% 0% 86 min
February 155 85.2% 0% 43 min
March 149 84.4% 1.34% 46 min
April 142 89.4% 0% 43 min
May 144 82.6% 0% 35 min
June 142 81% 0% 47 min
July 171 86.5% 0% 38 min
August 162 83.9% 0.62% 48 min
September 159 90.6% 0% 50 min
October 163 90.8% 0% 43 min
November 171 81.2% 0.58% 53 min
December 173 81.3% 0.58% 63 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.