Usually the cheapest way to do Australia + SEA โ fly into Asia first, save Australia for last.
The route, leg by leg
- โ๏ธ
California โ Bangkok ยท ~$420
EVA/China Airlines/Korean sale fare, or ZipAir via Tokyo. Cheapest transpacific corridor. - ๐
Bangkok โ Chiang Mai & N. Thailand ยท ~$30
Sleeper train up, slow-boat or bus into Laos if you like. - โ๏ธ
Chiang Mai โ Hanoi ยท ~$70
Or overland through Laos (Luang Prabang) โ slower, unforgettable. - ๐
Hanoi โ Ho Chi Minh City ยท ~$45
3โ4 weeks down the coast: Ha Long, Hoi An, Da Lat. Sleeper trains/buses. - โ๏ธ
Ho Chi Minh City โ Bali ยท ~$90
VietJet nonstop, or via KUL for less. - โ๏ธ
Bali โ Sydney / Melbourne ยท ~$170
Jetstar sale fare. The cheap way into Australia. - ๐
Australia east coast ยท ~$150
Greyhound pass or a shared campervan relocation deal. - โ๏ธ
Sydney โ California ยท ~$500
Jetstar/Fiji Airways home. Book once you know your dates.
Transport total: about $1,475. Daily budget: $49/day shoestring, $74/day flashpacker.
Why it saves money
๐ฐ You hit the expensive country (Australia) last, when you know exactly what's left in the kitty. Transpacific fares into Bangkok run $100โ200 under Sydney fares, and your Australia entry becomes a ~$170 Bali hop instead of a $600 ocean crossing.