Best time to fly Dallas/Fort Worth to Peoria

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

Best month

October

86.1% on time · 154 flights

Worst month

June

60.8% on time · 180 flights

Month Flights On time Cancelled When late, by
January 142 78% 7.04% 82 min
February 133 80% 2.26% 66 min
March 150 71.2% 2.67% 62 min
April 176 78.5% 2.27% 65 min
May 186 79.4% 3.23% 92 min
June 180 60.8% 5% 95 min
July 153 73% 2.61% 93 min
August 155 72.5% 1.29% 83 min
September 150 84.6% 0.67% 104 min
October 154 86.1% 1.95% 84 min
November 146 83.5% 4.79% 58 min
December 150 81% 2% 113 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.