Best time to fly Santa Ana to San Jose

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

Best month

January

94.8% on time · 210 flights

Worst month

June

78.2% on time · 224 flights

Month Flights On time Cancelled When late, by
January 210 94.8% 0% 33 min
February 212 85.6% 1.42% 43 min
March 236 88.1% 0.42% 53 min
April 225 86.5% 0.89% 41 min
May 228 89.4% 0.88% 34 min
June 224 78.2% 1.79% 50 min
July 217 81.7% 1.84% 44 min
August 219 89% 0.46% 34 min
September 215 87.4% 0% 50 min
October 228 84.1% 0.88% 44 min
November 220 85.3% 0.91% 49 min
December 227 86.3% 0.44% 55 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.