Best time to fly Indianapolis to Las Vegas

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

Best month

August

87.9% on time · 99 flights

Worst month

December

65.3% on time · 101 flights

Month Flights On time Cancelled When late, by
January 97 77.7% 2.06% 46 min
February 88 80.7% 0% 55 min
March 122 76.2% 0% 61 min
April 121 75.2% 0% 38 min
May 119 77.3% 0% 52 min
June 122 72.1% 0% 50 min
July 112 82% 0% 76 min
August 99 87.9% 0% 66 min
September 98 82.5% 0% 48 min
October 147 78.1% 0.68% 63 min
November 106 86.3% 3.77% 49 min
December 101 65.3% 0% 49 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.