BNE stands for Brisbane Airport, while RUN stands for Saint-Denis Gillot Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Coolangatta Gold Coast Airport (OOL), Cairns Airport (CNS), Proserpine Whitsunday Coast Airport (PPP), Townsville Airport (TSV), Hamilton Island Airport (HTI) are some additional IATA codes for airports related to your trip.