TigerAir in with some of their best domestic prices in some time.
Flights from $40.95 One way, max of $131.95 (Perth to Sydney).
Deals exist from Sydney, Melbourne, Hobart, Gold Coast, Perth, Cairns, Adelaide, Brisbane, Coffs Harbour and Canberra!
Most deals finish tonight (1 day only!), others on Thursday night.
If worried about their on-time rating, make sure to compare with Jetstar's domestic ticket prices as well since both are on sale at present.