Over 60 airlines around the world, including Qantas/ Jetstar and Virgin Australia, sell transferable airline tickets. Their policies allow name changes (for a fee), thus, you can resell your non-refundable flight ticket. So instead of going to eBay, Facebook, Gumtree, or other unspecialized sites, you can use TakeMyFlight where people are looking forward to buying your flight. Moreover, the service will send notification alerts to everyone who is waiting for your particular route.