İETT, officially known as İstanbul Elektrik Tramvay ve Tünel İşletmeleri Genel Müdürlüğü, is Istanbul’s public transport authority. Its website helps residents and visitors plan journeys and access information about the city’s transport network. Passengers can search for bus routes and stops, use the “How to Get There?” journey planner, and check where a bus is through the Otobüsüm Nerede service, also available via an app for iOS and Android.

The site provides route and travel guidance for destinations and connections including airports, bus terminals, ferry piers, high-speed rail, metro lines and the islands. It also highlights night routes and offers journey maps, fare information, service announcements and transport news. Passenger support features include lost-property information, application tracking, information-access requests and a passenger contact form. IETT also publishes details about passenger rights, service standards, tenders, reports and its institutional policies. As part of Istanbul’s broader public transport ecosystem, the organization links users to related municipal transport services and resources, helping them navigate local travel options and stay informed about services.