Reading an article from the New York Times, I found out some airlines codes referring to the different kinds of tickets people could buy now in the US:
Among the items on that growing list are the usual things like prepaid checked bag (code 0AA), snack (0AT), aisle seat exit row (0A5), beverage (0AX), video games (0AF), passenger assistance (0BY) and wheelchair (0AH)
Do you have also this kind of things in the Spanish companies? Do you think we will also have them? Is it something only thought for low cost companies?