Best time to fly Dallas/Fort Worth to Memphis

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

Best month

September

81.4% on time · 445 flights

Worst month

June

60.1% on time · 426 flights

Month Flights On time Cancelled When late, by
January 346 70.6% 10.4% 66 min
February 323 73% 1.55% 65 min
March 414 71.5% 2.66% 76 min
April 408 69.3% 2.7% 74 min
May 423 72.3% 3.55% 84 min
June 426 60.1% 4.69% 61 min
July 491 61.2% 1.83% 66 min
August 459 68% 1.96% 61 min
September 445 81.4% 0.67% 56 min
October 501 77% 1% 63 min
November 346 67% 1.73% 77 min
December 374 65.2% 0.8% 80 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.