Well no the flights are not exactly all full. Some of their routes get fairly respectable loads. It's the BNE-MEL flights that worry me. There is a huge capacity between these 2 cities. Supply and demand - and at this time there is way more supply than demand. It is not enough to sell 100% of your discount tickets on a route. A low coast airline MUST sell a decent % of higher fares too to get close to just breaking even. For example, once they sell all there very cheapest seats their fares can become the same as other airlines, and I am sorry but 99% of people will fly Qantas for a similar pric. In the example I showed Qantas was actually cheaper for the same dates