Best time to fly Savannah to Detroit

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

Best month

September

89.4% on time · 85 flights

Worst month

January

64.7% on time · 34 flights

Month Flights On time Cancelled When late, by
January 34 64.7% 0% 39 min
February 28 85.7% 0% 97 min
March 31 89.3% 9.68% 58 min
April 65 84.4% 1.54% 167 min
May 117 72.6% 0% 84 min
June 118 78.6% 0% 72 min
July 89 67.9% 4.49% 119 min
August 93 76.1% 1.08% 92 min
September 85 89.4% 0% 37 min
October 91 89% 0% 55 min
November 86 83.5% 1.16% 221 min
December 70 79.7% 1.43% 142 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.