A. Flying on Qantas and Partners
Calculator: Qantas a nice points calculator that also works with partner airlines.
Qantas and Jetstar: Airline Earning Table. For the West Coast USA to Sydney, you would earn 13,500 points in regular economy.
Partners: Partner Airline Earning Table. (OneWorld plus Alaska and El Al)
B. Transfer Partners
Qantas is a 1 to 1 transfer partner of Citi ThankYou points and a 2 to 1.5 airline point from Capital One.
C. Other Ways