Best time to fly Perth to Melbourne

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

Best month

April

83.3% on time · 522 flights

Worst month

May

74.5% on time · 510 flights

Month Flights On time Cancelled When late, by
January 561 75.3% 1.25% 0 min
February 455 81.7% 1.54% 0 min
March 510 77.6% 0.39% 0 min
April 522 83.3% 0% 0 min
May 510 74.5% 0.78% 0 min
June 982 83.1% 0.81% 0 min
July 552 79.3% 0.18% 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.