Ethiad has round-trip flights from Dallas (DFW) to Perth (PER) for $873-$973 with a connection. Flights February to May. Requires a 10-hour layover in Abu Dhabi (AUH) on the return leg.
Flights to Perth from Dallas have always been both expensive and time consuming. Flights without an overnight stay will usually cost about $2400 – $2900 on Quantas. Even flights with multiple stops and long layovers will end up costing around $1400. We see $873 as a very attractive price that only requires you to spend about $50 to $100 on a transit hotel or sleeping pod.