Best time to fly Hobart (Cambridge) to Sydney (Mascot)

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

Best month

April

84.2% on time · 234 flights

Worst month

January

66.7% on time · 287 flights

Month Flights On time Cancelled When late, by
January 287 66.7% 1.74% 0 min
February 233 76.3% 3.86% 0 min
March 254 82.1% 1.18% 0 min
April 234 84.2% 2.56% 0 min
May 212 78.7% 0.47% 0 min
June 417 82.7% 1.68% 0 min
July 232 76.6% 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.