Great question - MME to CTA just means Darlington Teesside Intl Airport to Catania Fontanarossa Airport. Now you’ll know what these unique codes when you look for flights! Palermo Punta Raisi Airport (PMO), Trapani Birgi Airport (TPS), Comiso Airport (CIY), Lampedusa Airport (LMP), Pantelleria Airport (PNL) are some additional IATA codes for airports related to your trip.