I'm just not sure what utility this has for a traveler. You don't need NFTs to implement transferrable plane tickets, though this does seem to try to ensure that the airline(?) gets a cut of any sales between passengers. It's the same pattern every time with NFTs, the only thing they seem to do is complicate matters while attempting to make a market out of thin air and take a cut of any related transactions.
No major US airline allows passengers to transfer tickets, and I don't think it's because they lack the technology to do so and NFTs would fill the void. If they did do this and it was possible to buy and sell plane tickets on an open blockchain based market, couldn't one just buy all of the tickets for popular flights and sell them at a markup?