Best time to fly Newark to Milwaukee

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

Best month

March

89.8% on time · 114 flights

Worst month

July

68.4% on time · 177 flights

Month Flights On time Cancelled When late, by
January 123 86.3% 4.88% 40 min
February 110 87.5% 5.45% 49 min
March 114 89.8% 3.51% 36 min
April 115 88.4% 2.61% 60 min
May 119 87.2% 8.4% 46 min
June 142 77.8% 4.23% 77 min
July 177 68.4% 12.43% 83 min
August 180 80.5% 8.33% 56 min
September 173 86.5% 1.73% 54 min
October 171 83.5% 0.58% 40 min
November 110 87.4% 6.36% 49 min
December 119 86.1% 2.52% 52 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.