Best time to fly Sioux Falls to Phoenix

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full FSD to AZA 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 39 79.5% 0% 54 min
February 42 88.1% 0% 33 min
March 51 79.6% 3.92% 106 min
April 34 79.4% 0% 28 min
May 30 56.7% 0% 63 min
June 25 76% 0% 58 min
July 24 58.3% 0% 47 min
August 19 57.9% 0% 105 min
September 14 92.9% 0% 25 min
October 30 73.3% 0% 80 min
November 27 70.4% 0% 96 min
December 35 60% 0% 152 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.