So supposedly Santiago to EasterIsland is a great avios redemption.

However on Avios site (or even Qantas site) I don't see any flights showing up for LAN between those two routes. I checked several months.

Its not that flights are showing with "no award space", flights are simply not showing up.

Is there any other way to book this flight with avios? AA/BA/Qantas don't show the flights at all so how do I do this?