Sale in two parts:
Until Wednesday: travel period late October to early November. Cheaper.
Until Thurs: Oct to June. Cheap.
EDIT: THIRD PART - EXTRA CHEAP: https://www.ozbargain.com.au/node/488555
Deals between many cities, including Hobart, Perth, Melbourne, Adelaide, Sydney, Coffs Harbour, Gold Coast, Cairns, Darwin, Brisbane and more.
*All fares are subject to availability and may vary until booking is confirmed. Fares may not be available on all routes and are not available on all flights or days. Prices are based on a one-way economy Light Fare. Light Fares are per person in AUD and include GST. Payments made with credit or debit cards are subject to a card payment fee of between 0.36% and 1.12% per booking. Payments made with Interest Free will attract a booking and service fee which is detailed at point of purchase. Payments made with POLi do not attract a payment fee. Add $35 AUD/ $40 NZD when booking travel by phone. Add $32 AUD when booking travel at the airport. Fares are not refundable under the fare conditions but you may be entitled to a refund under the Australian Consumer Law in certain circumstances. Bookings may be changed by paying the fee and any applicable fare difference in accordance with our conditions of carriage, as published on our website on the day you request your change. For Light Fares, additional charges apply for optional extras such as checked-in baggage travel insurance and reserved seat selection.
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Deals from Sydney, Deals from Melbourne, Deals from Adelaide, Deals from Canberra, Deals from Perth, Deals from Darwin, Deals from Cairns, Deals from Brisbane, Deals from Hobart
Virgin are actually cheaper than Tiger on a lot of these with baggage taken into account on the current sale. Unless you prefer the flying circus.