Best time to fly Los Angeles to Sacramento

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

Best month

September

90.1% on time · 918 flights

Worst month

July

82.3% on time · 942 flights

Month Flights On time Cancelled When late, by
January 829 87.9% 0.6% 75 min
February 795 86.2% 0% 55 min
March 929 83.2% 0.11% 65 min
April 961 87.2% 0.1% 73 min
May 1,020 86.1% 0% 58 min
June 1,008 84.1% 0.1% 63 min
July 942 82.3% 0.32% 65 min
August 925 88.1% 0% 65 min
September 918 90.1% 0.22% 54 min
October 992 88.2% 0% 63 min
November 906 88.2% 1.1% 53 min
December 857 85.8% 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.