Best time to fly Appleton to Minneapolis

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

Best month

April

87.2% on time · 88 flights

Worst month

December

50% on time · 81 flights

Month Flights On time Cancelled When late, by
January 73 63.9% 1.37% 140 min
February 67 74.6% 0% 69 min
March 83 58.7% 9.64% 155 min
April 88 87.2% 1.14% 176 min
May 93 80.6% 0% 99 min
June 42 78% 2.38% 87 min
July 92 78.3% 0% 119 min
August 91 71.4% 0% 102 min
September 90 73.3% 0% 39 min
October 93 86% 0% 88 min
November 88 81% 4.55% 110 min
December 81 50% 2.47% 119 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.