Great question - INV to EZE just means Inverness Airport to Buenos Aires Ministro Pistarini Airport. Now you’ll know what these unique codes when you look for flights! Buenos Aires Jorge Newbery Airport (AEP), Cordoba Pajas Blancas Airport (COR), Mendoza El Plumerillo Airport (MDZ), Ushuaia Malvinas Argentinas Airport (USH), San Carlos de Bariloche Teniente Luis Candelaria Airport (BRC) are some additional IATA codes for airports related to your trip.