What ever you do do not fly with Jetstar.
Airlines around the world passenger capacity for the A320 is 150 passengers not jetstar 180 and I assure you you know how a whale in an sardine can feels like.God knows what would happen if we had an emergency on board I guarantee 1/2 the passengers would not get out.forget it it if you are tall,overweight,elderly, disable, o r just not slim you have no chance.
Domestic
Australia-Townsville
Australia-Melbourne - Tullamarine