Great sale fare$150one-way
Typical low fare$210–$300one-way
Which airlines fly it cheapest
Jetstar (nonstop), Batik Air via KUL.
The local trick
💡 Jetstar Friday Frenzy regularly has SYD–Bali around AUD 199.
Corridor intel — Australia ↔ Southeast Asia
Perth and Darwin are Australia's cheap back doors to Asia. Jetstar, AirAsia X, VietJet and Batik Air run monthly sales — Friday afternoons (AEST) for Jetstar's Friday Frenzy. Bali and Kuala Lumpur are the two cheapest entry points; everything in SEA is a $30–80 hop from KUL.