Connecting flight or direct flight? There are many airlines that can be used: QF Qantas, MU Eastern Airlines, CX Cathay Pacific and Cathay Pacific, which are relatively cheap, but if you want to transfer in Hong Kong, the other two are direct flights with similar prices. China Eastern Airlines flies every day, MU565/56 1, and Qantas flies on Wednesday, 2346, but the flights may be reduced recently, because Qantas had an accident a while ago. You can reserve a round-trip indefinite ticket. Other airlines do not recommend it. Air China is more expensive.