Best time to fly Sacramento to Santa Ana

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

Best month

January

90.5% on time · 352 flights

Worst month

October

80.4% on time · 367 flights

Month Flights On time Cancelled When late, by
January 352 90.5% 0.28% 53 min
February 332 87.7% 0% 44 min
March 388 85.2% 1.03% 38 min
April 369 82% 0.81% 39 min
May 377 85.1% 0% 44 min
June 393 82.3% 0.76% 38 min
July 390 85.7% 1.54% 38 min
August 395 86.4% 0.76% 41 min
September 386 89.6% 0.26% 47 min
October 367 80.4% 0% 40 min
November 379 86.5% 0% 53 min
December 397 83.5% 0.5% 51 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.