Best time to fly Cairns to Melbourne

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

Best month

March

91.4% on time · 174 flights

Worst month

June

74.9% on time · 367 flights

Month Flights On time Cancelled When late, by
January 205 77.2% 1.46% 0 min
February 131 87.5% 2.29% 0 min
March 174 91.4% 0% 0 min
April 216 89.7% 1.39% 0 min
May 159 89.9% 0% 0 min
June 367 74.9% 0.27% 0 min
July 235 77.4% 0.43% 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.