You expect an answer to a rhetorical question?
“You expect an answer to a rhetorical question?”
No, because you can’t figure out how to come up with an answer.
The question forces you to confront an easily visualized and insoluble problem created by a Flat Earth.
You can’t figure out how to explain circumnavigation.
The “rhetorical” airplane has to fly off the Edge of the Flat Earth, since it can’t be flying around a globe that doesn’t exist.
Feel free to find some Flat Earth model showing us how it is that airplanes arrive back at their starting point if they fly in the same direction long enough.
We could always switch the question to flying/sailing to the West and see if you have any better luck figuring out an answer. Go for it, Ferdinand Magellan.