Best time to fly Dallas to Austin

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

Best month

January

89% on time · 196 flights

Worst month

June

64.1% on time · 194 flights

Month Flights On time Cancelled When late, by
January 196 89% 7.14% 52 min
February 187 88.1% 1.07% 49 min
March 201 73.6% 0% 58 min
April 200 73.5% 0% 57 min
May 204 66% 0.49% 58 min
June 194 64.1% 1.03% 58 min
July 197 73.8% 1.02% 80 min
August 190 80% 0% 71 min
September 189 86.7% 0.53% 49 min
October 207 77.2% 0.48% 48 min
November 183 72.4% 1.09% 66 min
December 185 82.2% 0% 40 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.