Best time to fly Tampa to Dallas

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

Best month

September

84.3% on time · 90 flights

Worst month

May

69.6% on time · 114 flights

Month Flights On time Cancelled When late, by
January 99 81.3% 2.02% 34 min
February 105 79.8% 0.95% 48 min
March 119 76.9% 1.68% 61 min
April 110 78.9% 0% 42 min
May 114 69.6% 0.88% 59 min
June 110 69.7% 0% 56 min
July 127 76.2% 0% 77 min
August 97 79.2% 0% 68 min
September 90 84.3% 0% 56 min
October 117 78.1% 0.85% 46 min
November 107 78.8% 7.48% 52 min
December 110 75.5% 0% 61 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.