There are direct flights from South Africa to Australia. There is a reason airlines use HUBS. I know it is complicated for flat earthers to understand things like logistics.

But I got one... how to disprove flat earth....

Its called: the 4 seasons. BOOM.

I'm just going to throw this out there for flat earthers. What shape is an icosahedron? Is it round? Or is it flat? Because if you lived on an icosahedron it would certainly look flat, wouldn't it?