Best time to fly Tampa to Detroit

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

Best month

September

93.3% on time · 149 flights

Worst month

December

70.6% on time · 231 flights

Month Flights On time Cancelled When late, by
January 226 77.4% 1.77% 65 min
February 233 78.4% 2.58% 47 min
March 321 78.3% 5.3% 80 min
April 230 82.5% 0.87% 89 min
May 141 83.6% 0% 90 min
June 133 84.7% 1.5% 79 min
July 182 77.7% 1.1% 61 min
August 169 80.8% 1.18% 46 min
September 149 93.3% 0% 91 min
October 182 88.5% 0% 65 min
November 174 87.5% 3.45% 59 min
December 231 70.6% 1.3% 83 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.