Metro: Modern, efficient system with two main lines serving the metropolitan area. Line 1 connects the airport to the city center and coastal towns. Single tickets cost €1.70; rechargeable Barik card offers discounts. Trains run 6am-11pm weekdays, until 2am weekends. Stations designed by Norman Foster feature distinctive glass entrances ('Fosteritos').
Tram (Euskotren): Connects Atxuri station with Basurto via the Old Quarter and Abandoibarra, passing the Guggenheim. Convenient for tourists visiting major attractions. Same ticket system as metro.
Buses (Bilbobus): Comprehensive network covering areas not served by metro/tram. Useful routes: A1 (circular route around Old Quarter), 13/18 (Artxanda), 58 (coastal areas). Single fare €1.40.
Funiculars: Artxanda Funicular climbs from river level to mountain viewpoint (€1.15). Short but scenic rides.
Creditrans Card: Rechargeable card (€3 deposit) offers better value for multiple journeys. Works on all public transport. Available at metro stations and tobacco shops.
Walking: Central Bilbao is compact and pedestrian-friendly. Most attractions are within 30 minutes' walk of each other.
Bilbao Bizkaia Card: Includes unlimited public transport plus museum discounts for 24/48/72 hours (€10-€20).
Taxis: Metered and readily available. White with red stripe. Uber not available but Cabify operates in Bilbao.
Airport Transfer: Bilbao Airport (BIO) is 12km from center. Bizkaibus A3247 runs every 20-30 minutes to Termibus station and city center (€1.45, 20 minutes). Taxis cost approximately €25-30.