Best time to fly Rapid City to Las Vegas

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full RAP to LAS 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 17 58.8% 0% 199 min
February 16 68.8% 0% 328 min
March 18 88.9% 0% 576 min
April 17 64.7% 0% 89 min
May 18 64.7% 0% 27 min
June 17 35.3% 0% 104 min
July 18 44.4% 0% 68 min
August 18 88.9% 0% 49 min
September 17 82.4% 0% 78 min
October 26 69.2% 0% 60 min
November 24 60.9% 4.17% 84 min
December 30 86.7% 0% 51 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.