Best time to fly Sydney (Mascot) to Hamilton Island

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

Best month

October

82.8% on time · 157 flights

Worst month

November

63.8% on time · 128 flights

Month Flights On time Cancelled When late, by
January 241 73.1% 2.9% 0 min
February 195 72.4% 1.54% 0 min
March 214 74.8% 0% 0 min
April 218 78.4% 0% 0 min
May 178 75.8% 0% 0 min
June 169 74.6% 0% 0 min
July 224 73.5% 0.45% 0 min
August 151 74.2% 0% 0 min
September 155 78.7% 0% 0 min
October 157 82.8% 0% 0 min
November 128 63.8% 0.78% 0 min
December 152 67.1% 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.