Cheap flights from Philadelphia to Melbourne, Australia for only $740 roundtrip with Qantas.
The example dates listed below range between $740 and $759 roundtrip.
Availability from September 2019 to March 2020 (excluding Christmas/New Year)
27th Oct – 3rd Nov
28th Oct – 4th Nov
24th Feb – 2nd Mar
San Francisco/Los Angeles
Allow the search to complete, then click an OTA to view the advertised price: