Airfare & ETA to Melbourne

Emirates 2 To go $8780 (Business Class)

http://fly.emirates.com

Ecomony Class 2 To Go $ $1952

https://www.singaporeair.com

Singapore Airline $2,018 for 2 person
Difference with Emirates is only $66

SINGAPORE AIRLINE BUSINESS CLASS $ 9,178.00
Difference $398


Apply ETA cost is S$20

http://www.eta.immi.gov.au/