Best time to fly Brisbane to Adelaide

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

Best month

May

88.5% on time · 315 flights

Worst month

July

78.7% on time · 320 flights

Month Flights On time Cancelled When late, by
January 330 81% 0.91% 0 min
February 306 83.8% 0.98% 0 min
March 340 82.1% 9.41% 0 min
April 307 81.2% 1.3% 0 min
May 315 88.5% 0.95% 0 min
June 594 79.4% 1.01% 0 min
July 320 78.7% 1.88% 0 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.