Best time to fly Sacramento to Las Vegas

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

Best month

February

86.3% on time · 277 flights

Worst month

October

75.1% on time · 382 flights

Month Flights On time Cancelled When late, by
January 292 82.8% 0.34% 56 min
February 277 86.3% 0% 60 min
March 318 80.4% 0.63% 54 min
April 312 79.8% 0% 67 min
May 333 77.6% 0.6% 50 min
June 326 78% 0.92% 54 min
July 452 78.1% 1.11% 74 min
August 431 82.3% 0.23% 59 min
September 407 81.9% 0.74% 64 min
October 382 75.1% 0% 51 min
November 356 79.8% 2.25% 52 min
December 352 80.4% 0% 48 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.