Best time to fly Tucson to Las Vegas

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

Best month

January

91.1% on time · 112 flights

Worst month

June

78.2% on time · 87 flights

Month Flights On time Cancelled When late, by
January 112 91.1% 0% 61 min
February 111 89.2% 0% 57 min
March 127 79.4% 0.79% 52 min
April 109 85.3% 0% 55 min
May 105 79% 0% 73 min
June 87 78.2% 0% 69 min
July 98 84.7% 0% 81 min
August 108 86.1% 0% 29 min
September 111 78.9% 1.8% 100 min
October 124 87.1% 0% 63 min
November 127 88.2% 0% 84 min
December 126 88.1% 0% 73 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.