Best time to fly Kona to San Jose

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

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 21 76.2% 0% 63 min
February 26 80.8% 0% 123 min
March 29 82.8% 0% 145 min
April 20 85% 0% 25 min
May 26 80.8% 0% 32 min
June 29 62.1% 0% 51 min
July 44 70.5% 0% 48 min
August 44 90.9% 0% 49 min
September 42 80.5% 0% 83 min
October 44 72.1% 0% 64 min
November 41 80.5% 0% 50 min
December 45 77.8% 0% 84 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.