Best time to fly San Diego to Kona

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

Best month

February

90.5% on time · 44 flights

Worst month

October

61.7% on time · 62 flights

Month Flights On time Cancelled When late, by
January 50 84% 0% 49 min
February 44 90.5% 0% 31 min
March 55 88.7% 0% 56 min
April 60 88.3% 0% 34 min
May 62 88.7% 0% 41 min
June 60 81.7% 0% 47 min
July 62 67.7% 0% 45 min
August 62 69.4% 0% 55 min
September 60 88.1% 0% 51 min
October 62 61.7% 1.61% 39 min
November 58 77.6% 0% 56 min
December 62 79.7% 0% 64 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.