Best time to fly Phoenix to Cincinnati

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

Best month

September

92.1% on time · 38 flights

Worst month

March

64.4% on time · 91 flights

Month Flights On time Cancelled When late, by
January 48 69.6% 4.17% 49 min
February 53 84.9% 0% 35 min
March 91 64.4% 1.1% 49 min
April 62 91.9% 0% 71 min
May 49 73.5% 0% 50 min
June 30 83.3% 0% 38 min
July 38 73.7% 0% 87 min
August 42 90.2% 2.38% 82 min
September 38 92.1% 0% 33 min
October 61 85.2% 0% 103 min
November 50 70% 0% 67 min
December 54 71.7% 1.85% 72 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.