Best time to fly Phoenix to Indianapolis

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

Best month

February

84.8% on time · 231 flights

Worst month

July

66.8% on time · 257 flights

Month Flights On time Cancelled When late, by
January 236 81.7% 2.54% 48 min
February 231 84.8% 0.43% 38 min
March 323 72.7% 0% 50 min
April 282 73.8% 0% 59 min
May 278 69.1% 0.36% 56 min
June 251 76.9% 0% 66 min
July 257 66.8% 1.17% 83 min
August 227 76.7% 0% 73 min
September 214 81.3% 0% 45 min
October 281 80.8% 0% 53 min
November 252 83.5% 1.19% 50 min
December 256 75% 0% 60 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.