Do I even need a Transit visa, or can I transit Australia without one?

Whether you need a Transit visa depends on your nationality and your itinerary. Travellers from certain eligible countries may transit without a visa if they meet all the conditions, including a confirmed onward ticket to a third country by air, departing within a set time, and a valid travel document for the destination.

Crucially, transit without a visa generally requires that you do not need to clear immigration or leave the airport transit lounge. If you must clear immigration, for example to collect and re-check baggage or move between terminals, you usually need a visa even if you are from an eligible country.

Because the rules are specific, check your route and nationality against the official transit information before you travel, so you do not arrive without the visa you need.