Best time to fly Rapid City to Phoenix

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full RAP 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 37 67.6% 0% 91 min
February 31 69% 6.45% 185 min
March 43 88.4% 0% 99 min
April 24 83.3% 0% 61 min
May 31 77.4% 0% 48 min
June 35 71.4% 0% 65 min
July 37 75.7% 0% 69 min
August 27 73.1% 0% 86 min
September 26 84.6% 0% 32 min
October 31 87.1% 0% 147 min
November 38 68.4% 0% 65 min
December 49 71.4% 0% 37 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.