Which one came first - Jetstar, Virgin or AirAsiaX?
Doesn't really matter, though PER-DPS must be a very good market nonetheless. Easily supports more than one airline. Simply putting more traffic on that route for the sake of "outnumbering seats" of the competitor doesn't always work.
Have these airlines put on extra traffic over the years?
Perth - Bali has grown over the years:
[TABLE="width: 499"]
[TR]
[TD="class: xl65, width: 64, align: right"]Jun-09[/TD]
[TD="class: xl64, width: 89"]Perth[/TD]
[TD="class: xl64, width: 92"]Denpasar[/TD]
[TD="class: xl64, width: 109"]Indonesia[/TD]
[TD="class: xl66, width: 1"][/TD]
[TD="class: xl66, width: 71"]36,763[/TD]
[TD="class: xl67, width: 73"]18.2[/TD]
[/TR]
[/TABLE]
[TABLE="width: 499"]
[TR]
[TD="class: xl67, width: 64, align: right"]Jun-10[/TD]
[TD="class: xl66, width: 89"]Perth[/TD]
[TD="class: xl66, width: 92"]Denpasar[/TD]
[TD="class: xl66, width: 109"]Indonesia[/TD]
[TD="class: xl68, width: 1"][/TD]
[TD="class: xl68, width: 71"]68,056[/TD]
[TD="class: xl69, width: 73"]18.3
[/TD]
[/TR]
[/TABLE]
[TABLE="width: 499"]
[TR]
[TD="class: xl67, width: 64, align: right"]Jun-11[/TD]
[TD="class: xl66, width: 89"]Perth[/TD]
[TD="class: xl66, width: 92"]Denpasar[/TD]
[TD="class: xl66, width: 109"]Indonesia[/TD]
[TD="class: xl68, width: 1"][/TD]
[TD="class: xl68, width: 71"]69,458[/TD]
[TD="class: xl69, width: 73"]18.0[/TD]
[/TR]
[/TABLE]
As has Dubai:
[TABLE="width: 626"]
[TR]
[TD="class: xl67, width: 64, align: right"]Jun-09[/TD]
[TD="class: xl66, width: 89"]Perth[/TD]
[TD="class: xl66, width: 92"]Dubai[/TD]
[TD="class: xl66, width: 109"]United Arab Emirates[/TD]
[TD="class: xl68, width: 1"][/TD]
[TD="class: xl68, width: 71"]24,408[/TD]
[TD="class: xl69, width: 73"]566.9[/TD]
[TD="class: xl69, width: 63"]9.2[/TD]
[TD="width: 64, align: right"]2009[/TD]
[/TR]
[/TABLE]
[TABLE="width: 626"]
[TR]
[TD="class: xl67, width: 64, align: right"]Jun-10[/TD]
[TD="class: xl66, width: 89"]Perth[/TD]
[TD="class: xl66, width: 92"]Dubai[/TD]
[TD="class: xl66, width: 109"]United Arab Emirates[/TD]
[TD="class: xl68, width: 1"][/TD]
[TD="class: xl68, width: 71"]27,389[/TD]
[TD="class: xl69, width: 73"]660.0[/TD]
[TD="class: xl69, width: 63"]5.3[/TD]
[TD="width: 64, align: right"]2010[/TD]
[/TR]
[/TABLE]
[TABLE="width: 626"]
[TR]
[TD="class: xl67, width: 64, align: right"]Jun-11[/TD]
[TD="class: xl66, width: 89"]Perth[/TD]
[TD="class: xl66, width: 92"]Dubai[/TD]
[TD="class: xl66, width: 109"]United Arab Emirates[/TD]
[TD="class: xl68, width: 1"][/TD]
[TD="class: xl68, width: 71"]28,387[/TD]
[TD="class: xl69, width: 73"]647.2[/TD]
[TD="class: xl69, width: 63"]4.4[/TD]
[TD="width: 64, align: right"]2011[/TD]
[/TR]
[/TABLE]
And even Singapore:
[TABLE="width: 626"]
[TR]
[TD="class: xl67, width: 64, align: right"]Jun-09[/TD]
[TD="class: xl66, width: 89"]Perth[/TD]
[TD="class: xl66, width: 92"]Singapore[/TD]
[TD="class: xl66, width: 109"]Singapore[/TD]
[TD="class: xl68, width: 1"][/TD]
[TD="class: xl68, width: 71"]71,805[/TD]
[TD="class: xl69, width: 73"]2,141.5[/TD]
[TD="class: xl69, width: 63"]75.5[/TD]
[TD="width: 64, align: right"]2009[/TD]
[/TR]
[/TABLE]
[TABLE="width: 626"]
[TR]
[TD="class: xl67, width: 64, align: right"]Jun-10[/TD]
[TD="class: xl66, width: 89"]Perth[/TD]
[TD="class: xl66, width: 92"]Singapore[/TD]
[TD="class: xl66, width: 109"]Singapore[/TD]
[TD="class: xl68, width: 1"][/TD]
[TD="class: xl68, width: 71"]74,722[/TD]
[TD="class: xl69, width: 73"]2,068.5[/TD]
[TD="class: xl69, width: 63"]71.8[/TD]
[TD="width: 64, align: right"]2010[/TD]
[/TR]
[/TABLE]
[TABLE="width: 626"]
[TR]
[TD="class: xl67, width: 64, align: right"]Jun-11[/TD]
[TD="class: xl66, width: 89"]Perth[/TD]
[TD="class: xl66, width: 92"]Singapore[/TD]
[TD="class: xl66, width: 109"]Singapore[/TD]
[TD="class: xl68, width: 1"][/TD]
[TD="class: xl68, width: 71"]78,055[/TD]
[TD="class: xl69, width: 73"]2,175.4[/TD]
[TD="class: xl69, width: 63"]54.5[/TD]
[TD="width: 64, align: right"]2011
[/TD]
[/TR]
[/TABLE]
Perth has a very large freight import business, probably more important the BNE etc