Best time to fly Phoenix to Kona

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

Best month

March

93.4% on time · 62 flights

Worst month

April

70% on time · 60 flights

Month Flights On time Cancelled When late, by
January 73 82.2% 0% 80 min
February 56 89.3% 0% 74 min
March 62 93.4% 1.61% 95 min
April 60 70% 0% 50 min
May 62 87.1% 0% 56 min
June 60 89.7% 0% 118 min
July 62 75.4% 0% 48 min
August 61 77% 0% 46 min
September 60 88.3% 0% 44 min
October 62 79% 0% 89 min
November 60 85% 0% 58 min
December 89 76.4% 0% 70 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.