[06/30/2017 @ 3:56 PM CST] Fare gone.
Qantas, Delta, and Virgin have round-trip flights from New York/Newark (JFK/EWR/LGA) to Sydney (SYD) or Melbourne (MEL) starting at $877, with a connection. Flights August, September, November, and also February to May. 7-day minimum stay required. Holiday blackouts apply. Australian ETA (a Visa) required.
Note: Delta / Virgin have slightly cheaper flights available, but they have longer connection times.