Which corridor does La Unión cover?

La Unión operates concession A-3700, the bus link between Bilbao and Vitoria-Gasteiz, with services such as A-3712, A-3714, A-3716, A-3718 and A-3719 depending on stops and routing.

Can I use transport cards on board?

Yes. La Unión buses accept BAT, Barik and Mugi cards, so you can validate your trip with the pass from any of the three territories.

Are there airport services?

Yes. Line A-3720 is aimed at airport connections, a practical way to reach the terminal without a car from the Bilbao to Vitoria-Gasteiz corridor.

How does Sarebus help with La Unión?

Sarebus gathers the timetables and stops of these lines and lets you compare the journey with other operators also covering the link between Bizkaia and Álava.

What are the buses like and should I book?

The vehicles offer wifi, USB ports and adapted access for people with reduced mobility. On the busiest departures it is advisable to book a seat in advance.

Where do I buy La Unión tickets?

Sarebus shows you La Unión timetables and the routes it runs, but does not sell tickets. Purchases are always made on the company's official channel, autobuseslaunion.com and its app, and from Sarebus we only redirect you there.

Can I use the BAT, Barik or Mugi cards on Autobuses La Unión?

Yes. You can use the BAT card on Autobuses La Unión (Alavabus Vitoria–Bilbao lines). The BAT card is issued at Tuvisa customer offices in Vitoria-Gasteiz and at authorised sales points in Álava. More on the BAT page. You can use the Barik card on Autobuses La Unión (Alavabus Vitoria–Bilbao lines). The Barik card is sold at Metro Bilbao ticket machines and Barik customer centres; the personalised version is requested at ctb.eus. More on the Barik page. You can use the Mugi card on Autobuses La Unión (Alavabus Vitoria–Bilbao lines). The Mugi card is available at tobacconists, kiosks and authorised sales points in Gipuzkoa, and at Dbus and Lurraldebus customer offices; the personalised version is requested at mugi.eus. More on the Mugi page.

Schedules, routes and tickets forAutobuses La Unión

Main lines of Autobuses La Unión

Autobuses La Unión data on Sarebus

La Unión buses

Autobuses La Unión, S.A. is a long-established operator with intercity lines across Bizkaia, Álava and Navarre.

Its services cover the Bilbao–Vitoria-Gasteiz axis, the links to Bilbao and Vitoria airports, connections with the left bank (Barakaldo, Portugalete, Santurtzi) and Getxo, and routes towards Pamplona-Iruña and Agurain. These are typical journeys for commuting, airport transfers and travel between the Basque capitals.

On Sarebus you can check Autobuses La Unión timetables, explore its routes and see which other services it connects with. For fares or service updates, this page links straight to the official Autobuses La Unión information.

Go to official website

Routes operated by this carrier

Frequently asked questions about Autobuses La Unión

La Unión operates concession A-3700, the bus link between Bilbao and Vitoria-Gasteiz, with services such as A-3712, A-3714, A-3716, A-3718 and A-3719 depending on stops and routing.
Yes.
You can use the BAT card on Autobuses La Unión (Alavabus Vitoria–Bilbao lines). The BAT card is issued at Tuvisa customer offices in Vitoria-Gasteiz and at authorised sales points in Álava. More on the BAT page.
You can use the Barik card on Autobuses La Unión (Alavabus Vitoria–Bilbao lines). The Barik card is sold at Metro Bilbao ticket machines and Barik customer centres; the personalised version is requested at ctb.eus. More on the Barik page.
You can use the Mugi card on Autobuses La Unión (Alavabus Vitoria–Bilbao lines). The Mugi card is available at tobacconists, kiosks and authorised sales points in Gipuzkoa, and at Dbus and Lurraldebus customer offices; the personalised version is requested at mugi.eus. More on the Mugi page.

Additional information

Use your BAT, Barik or Mugi cards on Autobuses La Unión

On Autobuses La Unión you can pay with the BAT, Barik and Mugi cards.

BAT (Álava)
You can use the BAT card on Autobuses La Unión (Alavabus Vitoria–Bilbao lines).
The BAT card is issued at Tuvisa customer offices in Vitoria-Gasteiz and at authorised sales points in Álava.
More on the BAT page.
Barik (Bizkaia)
You can use the Barik card on Autobuses La Unión (Alavabus Vitoria–Bilbao lines).
The Barik card is sold at Metro Bilbao ticket machines and Barik customer centres; the personalised version is requested at ctb.eus.
More on the Barik page.
Mugi (Gipuzkoa)
You can use the Mugi card on Autobuses La Unión (Alavabus Vitoria–Bilbao lines).
The Mugi card is available at tobacconists, kiosks and authorised sales points in Gipuzkoa, and at Dbus and Lurraldebus customer offices; the personalised version is requested at mugi.eus.
More on the Mugi page.