Q: 2.5 — Proof of Air Routes

A direct flight from Sydney to Johannesburg takes about fourteen hours. On the flat Earth map proposed by flat-Earthers, this flight should take eighty hours or more. But the flight is real and is taken by hundreds of thousands annually.

This stark contradiction appears on dozens of routes from the Southern Hemisphere. Any real airline operates on the spherical Earth model for calculating fuel, distance, and routes.