Best time to fly Phoenix to Everett

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

Best month

June

92.8% on time · 97 flights

Worst month

November

76.2% on time · 124 flights

Month Flights On time Cancelled When late, by
January 102 87.9% 1.96% 50 min
February 101 84.2% 0% 59 min
March 124 85.4% 0.81% 37 min
April 114 92.1% 0% 36 min
May 82 92.7% 0% 44 min
June 97 92.8% 0% 59 min
July 100 81.4% 2% 100 min
August 74 87.5% 2.7% 83 min
September 37 88.9% 0% 59 min
October 95 88.3% 1.05% 32 min
November 124 76.2% 0% 53 min
December 129 83.6% 0.78% 43 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.