Best time to fly Spokane to San Diego

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

Best month

April

98.5% on time · 65 flights

Worst month

June

80% on time · 80 flights

Month Flights On time Cancelled When late, by
January 36 88.6% 2.78% 81 min
February 44 90.7% 2.27% 51 min
March 66 93.9% 0% 20 min
April 65 98.5% 0% 712 min
May 67 94% 0% 26 min
June 80 80% 0% 39 min
July 61 93.3% 1.64% 42 min
August 62 93.5% 0% 34 min
September 59 93% 3.39% 35 min
October 61 84.5% 4.92% 36 min
November 56 87.5% 0% 39 min
December 62 82.3% 0% 52 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.