Best time to fly Perth to Brisbane

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

Best month

July

83.8% on time · 966 flights

Worst month

December

65.7% on time · 676 flights

Month Flights On time Cancelled When late, by
January 1,007 73.1% 0.89% 0 min
February 862 80% 0.7% 0 min
March 962 76.4% 4.05% 0 min
April 945 73.9% 0.53% 0 min
May 909 68.4% 0.66% 0 min
June 888 82.3% 1.13% 0 min
July 966 83.8% 0.72% 0 min
August 607 77.5% 1.15% 0 min
September 617 73.5% 0.49% 0 min
October 651 67.6% 0.77% 0 min
November 637 65.8% 1.73% 0 min
December 676 65.7% 0.74% 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.