Originally Posted by
docbert
Note that a (very) small number of domestic flights leave from the international terminal as they are tag flights for international flights.
For these flights liquids ARE restricted as for any other flights.
Extremely unlikely you'll hit one of these, but they do exist. You can tell based on which terminal the flight leaves from (domestic v's international terminal)
BUT, the International Terminal origin domestic flights allow some to access the QF F lounge in SYD and MEL. The penalty of course being the extra administration that can be time consuming.