Best time to fly Indianapolis to Phoenix

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

Best month

January

85.3% on time · 119 flights

Worst month

December

65.4% on time · 127 flights

Month Flights On time Cancelled When late, by
January 119 85.3% 2.52% 182 min
February 115 76.5% 0% 66 min
March 166 78.7% 1.2% 70 min
April 142 84.5% 0% 45 min
May 142 84.5% 0% 38 min
June 125 72.8% 0% 48 min
July 127 74.4% 1.57% 90 min
August 103 79.6% 0% 53 min
September 98 83.5% 0% 107 min
October 141 78% 0% 49 min
November 126 80.2% 0% 74 min
December 127 65.4% 0% 63 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.