Best time to fly Sydney (Mascot) to Forest Hill

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

Best month

March

91.8% on time · 195 flights

Worst month

May

75.5% on time · 192 flights

Month Flights On time Cancelled When late, by
January 144 85.9% 1.39% 0 min
February 175 85.5% 1.71% 0 min
March 195 91.8% 0.51% 0 min
April 166 80.1% 0% 0 min
May 192 75.5% 2.08% 0 min
June 355 75.9% 2.82% 0 min
July 195 76.4% 0% 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.