Best time to fly Las Vegas to Billings

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full LAS to BIL 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 21 90.5% 0% 63 min
February 16 93.8% 0% 16 min
March 18 88.9% 0% 29 min
April 16 100% 0%
May 20 85% 0% 166 min
June 22 90.9% 0% 38 min
July 18 52.9% 0% 46 min
August 18 83.3% 0% 33 min
September 18 72.2% 0% 70 min
October 33 78.8% 0% 177 min
November 20 85% 0% 25 min
December 43 86% 0% 47 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.