Jetstar's fleet is almost entirely operating leased and so depreciation and capital charges are included within the operating lease charge. For an airline where aircraft are owned no capital charge is taken in the P&L hence the EBIT margin for an airline which owns their aircraft should be higher.
If I read the Annual Reports correctly, the Qantas Group aircraft (and engines) are largely owned, with the balance under finance leases, not operating leases. Huge difference legally and in terms of what is shown in the Balance Sheet and P & L. Most of the operating leases at Qantas are associated with buildings, not aircraft.
Why isn't the cost being attributed to the individual leasing companies like;
738 Leasing Company - owner of VH-VXG
or
Sicily Leasing Company - owner of VH-VXH
or
QF ECA A380 2010 NO. 4 PTY LTD - owner of VH-OQH
Under a typical finance lease, the control, risks and rewards are taken by Qantas. International financial reporting standards require both the assets and liabilities to be reflected in the financial accounts, and the amortisation of the leases to be reported in the P & L. QF ECA A380 No. 4 Pty Ltd is 100% owned by Qantas - same as the 30+ other fully owned companies set up to lease aircraft.