Great sale fare$180one-way
Typical low fare$250–$350one-way
Which airlines fly it cheapest
VietJet, Vietnam Airlines.
The local trick
💡 Vietnam makes a cheap first stop — then overland north or fly on for pocket change.
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.