15% off Skybus Melbourne CBD ↔ MEL Airport Express $18.23 One Way, $30.51 Return (Non Refundable QR Code) @ Agoda

Just in time for my upcoming trip this week.
For some random reason Tickets on 2/2-4/2 is 75c more expensive.
You may select any departure date up to 2 months from today, however:

Tickets are valid for 3 months from date of purchase.

Original rip off price from Skybus official website is OW $24.60, RT $41.20
Cashback is not available.