Best time to fly Charlotte to Las Vegas

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

Best month

January

85% on time · 150 flights

Worst month

July

72.4% on time · 231 flights

Month Flights On time Cancelled When late, by
January 150 85% 10.67% 60 min
February 145 75.4% 2.07% 55 min
March 176 83.4% 0.57% 80 min
April 175 76% 0% 46 min
May 192 82.7% 0% 53 min
June 180 72.8% 0% 72 min
July 231 72.4% 1.73% 81 min
August 174 78.5% 0.57% 53 min
September 166 82.5% 0% 80 min
October 194 84.5% 0% 45 min
November 168 80.4% 0% 60 min
December 185 84.9% 0% 68 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.