Best time to fly Austin to New Orleans

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

Best month

September

87.3% on time · 296 flights

Worst month

June

66.6% on time · 336 flights

Month Flights On time Cancelled When late, by
January 273 79.7% 4.4% 59 min
February 284 78.5% 0% 57 min
March 355 71.5% 0.85% 57 min
April 337 78.2% 0% 62 min
May 341 75% 0.88% 66 min
June 336 66.6% 0.6% 52 min
July 322 67.3% 0.31% 67 min
August 302 85.4% 0% 65 min
September 296 87.3% 1.35% 47 min
October 307 80.5% 0% 45 min
November 267 80.1% 0% 48 min
December 267 74.1% 0% 56 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.