https://kai.id/en is the official website to buy your train tickets in Indonesia.
Indonesia’s train system, operated by PT Kereta Api Indonesia (KAI), is an essential and popular mode of transportation, especially on the island of Java. The network connects major cities like Jakarta, Yogyakarta, Surabaya, and Bandung, offering several classes of service, including Executive, Business, and Economy.
The trains are generally comfortable, with newer trains offering air-conditioning and modern amenities. The Argo series of trains, for example, are high-speed and more luxurious, while other trains are more basic, providing affordable travel options. Train travel in Indonesia allows passengers to enjoy scenic views of the countryside, mountains, and coastal areas. The network is expanding, with ongoing efforts to improve services and connect more regions across the country.