Best time to fly Dallas/Fort Worth to Brownsville

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

Best month

October

89% on time · 266 flights

Worst month

July

74.1% on time · 265 flights

Month Flights On time Cancelled When late, by
January 255 81.4% 6.27% 72 min
February 227 81% 0.44% 63 min
March 273 83.2% 3.66% 67 min
April 265 82% 3.4% 43 min
May 270 78.2% 4.44% 52 min
June 234 74.8% 2.99% 65 min
July 265 74.1% 1.13% 42 min
August 272 81.1% 0.74% 52 min
September 249 84.3% 0.4% 52 min
October 266 89% 0.75% 42 min
November 256 85.6% 5.08% 56 min
December 257 82.4% 1.95% 66 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.