One of our moderators is a pilot and engineer. He has supplied us with his pilots license as well. He has testified that he has never witnessed any evidence that showed the Earth to be round.
I suggest you go on a popular travel flight - start to play with different locations for your destination and departure. I think you'll be surprised with what you find. You may be up all night trying to prove it wrong.
I have looked at actual flights on the QANTAS and followed flights on Flightradar24.
I posted this earlier, but you just ignored it.
Are you accusing QANTAS, Flightradar24 and Flightaware of lying?
And are you claiming that the thousands of passengers the fly every week from Sydney to/from Santiago and from Sydney to/from Johannesburg of being deceived?
FlightRadar24 - Flight QF28 Santiago to SydneyQANTAS flies Sydney to/from Santiago every day. The west-east flight takes less time, by the way.
The distance via say Los Angeles would be over twice the distance. A 747 could not possibly do that in13 hours 45 minutes?
There are also direct flights from South Africa to/from South America, though QANTAS does not fly those routes.
Please don't claim that these flights go via the Northern Hemisphere, that is simply not possible in actual time taken by those flights.