The downtown area around Plaça Catalunya can be easily
reached from the airport by train or bus.

Trains to Plaça Catalunya leave from the airport every 30 minutes.
The trip takes 24 minutes. The train station can be reached by
an overpass located between terminals A and B.
Plaça Catalunya is the 4th stop.

Buses depart from every terminal at intervals of 15 minutes.
They make serveral stops in the city.
Travel time depends on traffic conditions

By taxi you should expect to pay between 20€ to 30€ depending
on traffic conditions.