Best time to fly Juneau to Ketchikan

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

Best month

April

98.3% on time · 60 flights

Worst month

December

74.1% on time · 60 flights

Month Flights On time Cancelled When late, by
January 60 90.4% 5% 56 min
February 56 82.4% 3.57% 61 min
March 62 75.8% 0% 41 min
April 60 98.3% 3.33% 25 min
May 62 96.7% 1.61% 131 min
June 60 91.5% 1.67% 151 min
July 62 96.6% 4.84% 131 min
August 62 93.5% 0% 61 min
September 60 91.7% 0% 60 min
October 62 88.1% 1.61% 112 min
November 57 80.4% 1.75% 56 min
December 60 74.1% 1.67% 103 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.