Best time to fly Portland to Lihue

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full PDX to LIH 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 50 82% 0% 33 min
February 48 76.6% 2.08% 37 min
March 46 93.3% 0% 23 min
April 37 94.6% 0% 30 min
May 44 93.2% 0% 26 min
June 35 94.3% 0% 38 min
November 12 100% 0%
December 35 81.8% 0% 38 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.