Best time to fly Santa Ana to Santa Rosa

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

Best month

January

89.5% on time · 57 flights

Worst month

July

53.2% on time · 62 flights

Month Flights On time Cancelled When late, by
January 57 89.5% 0% 64 min
February 44 88.6% 0% 60 min
March 55 85.5% 0% 56 min
April 60 75% 0% 69 min
May 62 80% 3.23% 74 min
June 60 78.3% 0% 40 min
July 62 53.2% 0% 62 min
August 62 83.6% 1.61% 86 min
September 60 78% 0% 102 min
October 62 83.9% 0% 59 min
November 69 80.9% 1.45% 68 min
December 93 75.3% 1.08% 71 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.