Best time to fly Santa Ana to Sacramento

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

Best month

January

92.3% on time · 352 flights

Worst month

June

80.8% on time · 393 flights

Month Flights On time Cancelled When late, by
January 352 92.3% 0.57% 58 min
February 332 90% 0% 44 min
March 388 88.2% 2.06% 48 min
April 369 81.8% 0.27% 47 min
May 377 82.2% 0% 45 min
June 393 80.8% 0.76% 51 min
July 390 82.5% 1.79% 47 min
August 395 87.8% 0.51% 49 min
September 386 84.9% 0.52% 41 min
October 366 86.3% 0.27% 44 min
November 379 85.7% 0.26% 50 min
December 397 82.6% 1.01% 58 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.