Best time to fly Los Angeles to Dallas/Fort Worth

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

Best month

September

82.9% on time · 1,036 flights

Worst month

July

67.9% on time · 1,199 flights

Month Flights On time Cancelled When late, by
January 1,047 77.8% 7.07% 78 min
February 939 82.1% 0.75% 61 min
March 1,150 78.1% 1.83% 60 min
April 1,082 78.6% 1.2% 72 min
May 1,108 77.9% 2.26% 114 min
June 1,076 70.2% 1.95% 89 min
July 1,199 67.9% 1.92% 108 min
August 1,165 73.7% 1.63% 111 min
September 1,036 82.9% 0.68% 83 min
October 1,152 81.1% 0.43% 88 min
November 1,094 75% 2.29% 79 min
December 1,126 78.8% 0.8% 71 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.