Best time to fly Austin to Las Vegas

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

Best month

February

81.4% on time · 210 flights

Worst month

June

56.2% on time · 250 flights

Month Flights On time Cancelled When late, by
January 214 80.3% 2.34% 63 min
February 210 81.4% 0% 51 min
March 259 78.3% 0.39% 53 min
April 247 73.9% 0.81% 50 min
May 249 71.1% 0.4% 83 min
June 250 56.2% 0.4% 51 min
July 245 71.9% 0.41% 55 min
August 224 73.4% 0.89% 82 min
September 218 75.5% 0.46% 42 min
October 252 71.8% 0% 48 min
November 243 74.1% 0% 61 min
December 255 80% 0% 46 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.