Best time to fly Minneapolis to Detroit

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

Best month

October

89.1% on time · 156 flights

Worst month

December

67.5% on time · 156 flights

Month Flights On time Cancelled When late, by
January 156 78.7% 0.64% 41 min
February 141 83.6% 0.71% 70 min
March 156 78.7% 3.21% 56 min
April 150 87.3% 0% 46 min
May 156 87.2% 0% 57 min
June 172 85.5% 0% 53 min
July 196 78.4% 0% 89 min
August 190 81.1% 0% 108 min
September 154 85.1% 0% 65 min
October 156 89.1% 0% 56 min
November 149 87.2% 0.67% 50 min
December 156 67.5% 1.28% 64 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.