[Zac M]

The 787-8 has a max range of 13621, dependant on route taken a B788 should be able to make the journey from Canberra to Doha. I am sure the only limit would most likely be the climb requirement, the runway is long enough for pretty much everything with the extension however the climb requirement due to surrounding terrain is what usually causes payload restrictions with operations out of Canberra, the Dash 8-300s and ATRs are incredibly prone to this issue and it is not uncommon to see both types departing off runway 17 with a down wind due to the lesser climb requirement.

But yes, the second line of Yusef's post is certainly an accurate one!