You can download addons mostly free for this video game that include most of the airports that Qantas uses and Qantas planes from the DC4/707/747 to the latest all in Qantas colors.
Want to show the grand kids what fun it is to fly to Norfolk Island in a DC4 then Microsoft Flight Simulator will do that for you. Set the cloud cover to thick and see if you can find the island.
When I get the urge to get back in the air I fire up the 707 set the route from Manila to Hong Kong in real time and then prepare and serve dinner just to see if I can still serve a meal before landing.
If the kids really need some violence in their video games then fire up the old DC9 and put it in real time under auto pilot and see how long it takes to use all the fuel up.
Check out the Aussie site and the main flight sim site
For Qantas planes, scenery and flight plans that add on to Flight Simulator check this out Enter qantas in the search field