Best time to fly Detroit to Tampa

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

Best month

September

95.9% on time · 149 flights

Worst month

December

61.8% on time · 233 flights

Month Flights On time Cancelled When late, by
January 225 65.5% 0.89% 70 min
February 234 80.1% 3.42% 45 min
March 320 76% 4.69% 70 min
April 229 77% 0.87% 54 min
May 141 83% 0% 64 min
June 133 87.8% 1.5% 71 min
July 182 76.7% 1.1% 59 min
August 170 85.5% 1.18% 42 min
September 149 95.9% 0% 49 min
October 181 90.1% 0% 48 min
November 173 85.6% 3.47% 53 min
December 233 61.8% 2.15% 69 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.