Alvia
Switches between high-speed and conventional track to reach cities without a full AVE line.
Route guide
No high-speed line crosses the north yet, so the Alvia takes the long way round through Zaragoza and the Ebro valley. Six and a half hours, but the last stretch into the Basque hills earns its keep.
Switches between high-speed and conventional track to reach cities without a full AVE line.
Compare every operator on this route in one search. Advance fares climb as seats sell.
Services run 1–2 per day, with the first departure around 08:25 and the last around 15:30. Times shift with the seasonal timetable, so treat these as planning anchors and confirm the day before you travel.
Fares on this route are largely fixed, so there is little advantage in booking months ahead. Buy the day before or on the day in the operator's app, or at a station machine. Reserved seats still apply on long-distance services, so a sold-out train is sold out.
Tickets are digital: show the QR code in the operator app or a printout. High-speed and long-distance tickets are tied to a specific train and seat; regional tickets are more flexible but do not guarantee you a place.

Every high-speed service uses Sants, not Passeig de Gràcia. Metro L3/L5 run from beneath the concourse into the old city.
Ten minutes on foot from the Casco Viejo; the Guggenheim is a further 15.
Coach: ALSA and FlixBus link Barcelona and Bilbao for less money and roughly double the time — the budget backstop rather than a real rival. Driving: about 620 km of autopista, plus fuel, tolls and the problem of parking in a historic centre. Flying wins on raw hours here, but only if the airport transfers at both ends fall kindly. Compare door-to-door, not gate-to-gate.
Typically 6 h 30 min – 7 h, with services running 1–2 per day.
Tickets start at €28.00 and prices on this route barely move, so there is no need to book far ahead.
Departures leave from Barcelona Sants and arrive at Bilbao Abando.
Fares on this route are largely fixed, so there is little advantage in booking months ahead. Buy the day before or on the day in the operator's app, or at a station machine. Reserved seats still apply on long-distance services, so a sold-out train is sold out.
Roughly 08:25 and 15:30, varying by day of the week and season — confirm before you travel.