Best time to fly Tulsa to Dallas

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

Best month

February

95% on time · 81 flights

Worst month

June

71.3% on time · 82 flights

Month Flights On time Cancelled When late, by
January 93 94.2% 7.53% 56 min
February 81 95% 1.23% 24 min
March 89 85.2% 1.12% 53 min
April 86 91.7% 0% 50 min
May 88 74.4% 1.14% 38 min
June 82 71.3% 1.22% 79 min
July 84 74.4% 2.38% 65 min
August 89 87.5% 1.12% 55 min
September 90 93.3% 0% 44 min
October 93 87% 1.08% 75 min
November 84 89% 2.38% 39 min
December 89 89.9% 0% 53 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.