Best time to fly Dallas/Fort Worth to Indianapolis

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

Best month

October

79.6% on time · 209 flights

Worst month

July

54.1% on time · 191 flights

Month Flights On time Cancelled When late, by
January 142 72.8% 11.97% 61 min
February 132 79.4% 0.76% 47 min
March 155 70.6% 1.29% 56 min
April 161 72.2% 1.86% 58 min
May 166 70.6% 3.01% 62 min
June 180 57.6% 4.44% 92 min
July 191 54.1% 3.14% 69 min
August 198 63.4% 3.03% 84 min
September 200 73.8% 2.5% 64 min
October 209 79.6% 1.44% 58 min
November 167 69.1% 1.2% 74 min
December 146 62.8% 0% 80 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.