KA Airlangga

The **Airlangga** is an intercity passenger train service operated by Kereta Api Indonesia (KAI), linking the major metropolitan hubs of Surabaya and Jakarta on the island of Java. The service derives its name from Airlangga, the 11th-century founder and monarch of the Medang Kingdom, honoring the historical heritage of East Java. Its primary corridor connects Surabaya Pasarturi station in East Java with Pasar Senen station in central Jakarta, traversing the heavily populated northern coastal route of Java and serving as a vital transportation backbone for the region's socio-economic exchange.

As a crucial driver of passenger mobility, the Airlangga fleet maintains high operational reliability, facilitating seamless regional connectivity between urban centers, secondary towns, and rural communities along the northern corridor. The service bridges economic disparities by providing accessible, dependable, and weather-resilient mass transit for commuters, students, and merchants. Its consistent operation alleviates highway congestion and significantly enhances inter-regional mobility, fostering cultural and economic integration between the provinces of East Java, Central Java, and the Jakarta metropolitan area.

Operating under the 2025 Train Graph (*Grafik Perjalanan Kereta Api* or Gapeka 2025) framework, the service runs 2 scheduled trips daily. The route spans approximately 712 kilometers, during which the train serves 25 scheduled stations with an average transit time of 12 hours and 23 minutes. The train is exclusively configured with Economy Public Service Obligation (PSO) class equipment, reflecting its mandate to deliver heavily subsidized, affordable public rail transport backed by the Indonesian government.