EMA and OTP are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. EMA to OTP refers to a flight route from Nottingham East Midlands Airport to Bucharest Otopeni Intl Airport. Cluj Napoca Airport (CLJ), Iasi Airport (IAS), Timisoara Airport (TSR), Suceava Salcea Airport (SCV), Sibiu Airport (SBZ) are other airports near this flight route and their unique identifiers/IATA codes.