Best time to fly Tampa to Denver

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

Best month

September

87.9% on time · 417 flights

Worst month

August

69.5% on time · 454 flights

Month Flights On time Cancelled When late, by
January 513 82.8% 0% 55 min
February 494 84.6% 0.2% 72 min
March 671 80.3% 1.49% 87 min
April 502 83.2% 0% 72 min
May 515 77.7% 0.19% 67 min
June 542 72.3% 0% 59 min
July 577 73.3% 1.21% 65 min
August 454 69.5% 1.98% 58 min
September 417 87.9% 2.88% 76 min
October 480 85.7% 5.42% 46 min
November 505 86.6% 0.59% 56 min
December 551 83.5% 0.36% 70 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.