It's now a bus that does the transfers at BNE. Free for Qantas passengers.
Brisbane Domestic and International Terminals are located 2km apart with easy access between the two by either TBus or Taxi.
TBus services operate between the terminals every 20 minutes, or every 10 minutes during peak times during the day, and are complimentary for passengers holding a Qantas Boarding Pass or itinerary recept for their connecting flight. Signs are located throughout the terminal to guide you to the TBus service, located outside the terminal building. A taxi between terminals will cost approximately A$9 one way.