Best time to fly Dallas to Kansas City

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

Best month

January

83.9% on time · 158 flights

Worst month

June

64.1% on time · 172 flights

Month Flights On time Cancelled When late, by
January 158 83.9% 5.7% 51 min
February 158 80.9% 0.63% 40 min
March 183 71.8% 1.09% 57 min
April 180 73.4% 1.67% 48 min
May 178 69% 2.81% 50 min
June 172 64.1% 1.16% 68 min
July 166 75.3% 1.81% 51 min
August 158 75.3% 0% 65 min
September 155 81.9% 0% 54 min
October 181 74.7% 1.66% 50 min
November 172 81.1% 1.74% 63 min
December 180 79.3% 0.56% 44 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.