Without delving into all ports mentioned; I had a very brief look at Sydney to Merimbula and Broken Hill Tuesday next week (random choices out of those listed as possibly more remote / difficult to drive as alternative to flying). Merimbula has 3 flights with Rex, zero with QF. Broken Hill has 2 flights Tuesday with rex, zero with QF. Haven’t looked much further than this, but operating “to the same port” is hardly the same as operating “near identical schedule” as suggested a few posts above