Best time to fly Santa Barbara to Seattle

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

Best month

November

89.5% on time · 58 flights

Worst month

June

65.1% on time · 86 flights

Month Flights On time Cancelled When late, by
January 62 80.3% 1.61% 40 min
February 56 83.9% 0% 60 min
March 60 72.9% 1.67% 32 min
April 57 82.5% 0% 41 min
May 71 67.1% 1.41% 48 min
June 86 65.1% 0% 52 min
July 92 70% 2.17% 57 min
August 79 68.4% 0% 40 min
September 56 85.7% 0% 59 min
October 62 87.1% 0% 90 min
November 58 89.5% 1.72% 47 min
December 61 76.7% 1.64% 50 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.