The Sydney-Santiago flight route is one of the southernmost passenger flights. Such a route is impossible if Earth were flat and confirms that Earth is a sphere. It is easy to verify the existence of this route from flight websites.
On a flat Earth, this route should go across the United States. But the duration of the Sydney-Santiago route with a stop in the US is much longer than the non-stop route because Earth is a sphere, and this route does not go anywhere near the United States.
According to the so-called flat-Earth map, the flight route of Sydney-Santiago should traverse the United States. Therefore, we can compare the duration of a non-stop flight of Sydney-Santiago to the same flight, but with a stop in the United States:
- Sydney-Santiago: 12h 40m. Santiago-Sydney: 14h 5m. Average: 13h 22m
- Sydney-Los Angeles: 13h 50m. Los Angeles-Sydney: 15h 0m. Average: 14j 25m
- Los Angeles-Santiago: 10h 45m. Santiago-Los Angeles: 11h 25m. Average: 11j 5m
(data obtained from Google Flights)
The duration of the non-stop flight of Sydney-Santiago is 13 hours 22 minutes. But the same flight with a stop in Los Angeles is 25 hours 30 minutes, or almost twice the duration.
If the flat-Earth model is correct, then both flights should have a similar duration and will not be almost twice as long just because it makes a stop in a city very close to the flight route.
The reason is that the flight does not actually go over the United States. The Earth is spherical, and the flight traverses the southern Pacific Ocean, which is the great circle route between Sydney and Santiago. If the passenger decides to take the same flight with a stop in Los Angeles, he would make a massive detour, and the trip would become almost twice longer than the non-stop flight.
The corresponding flight numbers and links to FlightAware.
- Sydney-Santiago: Qantas QF28, FlightAware
- Sydney-Los Angeles: Qantas QF11, FlightAware
- Los Angeles-Santiago: LAN Airlines LA603, FlightAware