Best time to fly Las Vegas to Sacramento

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

Best month

February

86.2% on time · 275 flights

Worst month

June

70% on time · 326 flights

Month Flights On time Cancelled When late, by
January 294 81.6% 0.34% 53 min
February 275 86.2% 0% 61 min
March 318 81.7% 0.31% 48 min
April 312 76.9% 0% 56 min
May 332 71% 1.2% 50 min
June 326 70% 0.92% 57 min
July 452 73.5% 1.33% 77 min
August 432 81.4% 0.23% 60 min
September 407 77.8% 0.25% 64 min
October 381 74.8% 0% 60 min
November 356 83.6% 1.97% 45 min
December 354 82.2% 0% 44 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.