Malaysia Airlines passengers will witness several changes to Australia flights commencing next month, as the airline shuffles its planes around on Adelaide, Melbourne and Perth services.

The news is enormously good for business class passengers, as it means more flights on the airline's new Airbus A330-300 planes, with an updated business class offering.

In Adelaide, passengers will view the new A330 cabins rolled out on all flights, replacing the older Boeing 777-200ER planes, from Sept 26.

In Melbourne, both daily Melbourne-Kuala Lumpur flights will obtain the new A330 cabins, which is also from 26 September. 

In Perth, the situation is slightly trickier. From 26 September to 29 October, Malaysia Airlines is actually plummeting flights from 10 per week to 9. All Perth flights will view older Boeing 777-200ER planes and cabins. Between 30 October and 30 November, Perth will persist in seeing older planes and cabins, but MH127 to Perth on Saturdays and MH126 from Perth on Sundays will be on the older Airbus A330. Subsequent to 1 December and until 14 February, most Perth flights will see the older Airbus A330.After 15 February, all Perth flights ,which is around ten a week will view the new A330-300 planes and cabins.