Columns: Line | Terminals | Status | Length | Total number of stations | Operator
Line 1 | Etxebarri / Plentzia | Complete | 31km | 29 | Metro Bilbao S.A. | Line 2 | Basauri / Kabiezes | Complete | 20km | 25 | Metro Bilbao S.A. | Mamariga Shuttle | Santurtzi / Mamariga | Complete | 500 m | 2 | Metro Bilbao S.A. | Line 3 | Etxebarri-Norte / Matiko | Under construction | 5.885km | 7 | Metro Bilbao S.A. | Airport Line | Matiko / Aireportua | Under construction | 6.491km | 3 | EuskoTren | Line 4 | Matiko / Rekalde | In studies | 6km | 7 | Metro Bilbao S.A. | Line 5 | Etxebarri / Usansolo | In studies | 8,8km | 6 | Metro Bilbao S.A.