Best time to fly Baltimore to Cincinnati

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

Best month

November

93.3% on time · 60 flights

Worst month

May

66.1% on time · 62 flights

Month Flights On time Cancelled When late, by
January 58 87.3% 5.17% 41 min
February 52 90.2% 1.92% 47 min
March 62 75.4% 1.61% 70 min
April 60 83.3% 0% 46 min
May 62 66.1% 0% 47 min
June 60 79.7% 1.67% 66 min
July 62 66.7% 3.23% 80 min
August 62 80.6% 0% 48 min
September 60 90% 0% 43 min
October 61 85% 1.64% 33 min
November 60 93.3% 0% 30 min
December 62 74.2% 0% 42 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.