Vasco da Gama Goa Intl Airport is GOI and Incheon Intl Airport is ICN. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Bangkok Suvarnabhumi Airport (BKK), Manila Ninoy Aquino Intl Airport (MNL), New Delhi Indira Gandhi Intl Airport (DEL), Singapore Changi Airport (SIN), Kuala Lumpur Intl Airport (KUL) are some additional IATA codes for airports related to your trip.