The Nusantara Capital City Authority (OIKN) revealed that the KIPP IKN-Sepinggan Balikpapan Airport Railway is estimated to start operation in 2029. Currently, the project is undergoing the feasibility study by the Ministry of Transportation. The project is planned to cut the travel time to approximately 34 minutes to travel approximately the total length of 46.06 kilometers. The airport railway is planned to be operated by PTKAI.