Best time to fly Forest Hill to Sydney (Mascot)

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

Best month

March

84.5% on time · 195 flights

Worst month

July

76.3% on time · 194 flights

Month Flights On time Cancelled When late, by
January 143 77.1% 2.1% 0 min
February 173 82% 3.47% 0 min
March 195 84.5% 0.51% 0 min
April 167 80.1% 0.6% 0 min
May 194 77.8% 2.58% 0 min
June 354 78.4% 3.11% 0 min
July 194 76.3% 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.