Getting Around Barcelona: Metro, Bus, and What Locals Actually Use
Barcelona’s public transport system is run by TMB and is genuinely good. The metro covers the city comprehensively, the buses fill the gaps, and the airport connection is direct. Here is the practical version.
The T-Casual card
The T-Casual is a 10-trip card that covers metro, bus, tram, and FGC (regional rail) within the city. One card for €12.15. You can share it between multiple people — tap for each person separately. This is the correct way to travel if you are staying more than two days. Single tickets cost €2.55 each. The maths works out quickly.
The metro
Eight lines covering the whole city. L1 (red) and L3 (green) are the workhorses — L1 runs east-west across the Eixample and through the old city, L3 runs from Zona Universitaria through Gràcia and up to the north. For the beach and Barceloneta: L4 (yellow). For the airport: L9 Sud from El Prat, or the Rodalies train from Sants or Passeig de Gràcia — the train is faster and the same price with a T-Casual.
What locals use differently
Locals who live in the Eixample or Gràcia cycle or walk for most things. The city is flat enough in the central districts that a 20-minute walk is often faster than the metro when you factor in platform waiting time. The Bicing shared bike system requires a Barcelona residency card, but rental bikes from shops near the port start at €10/day.
Avoiding the tourist traps
The airport bus (Aerobus) costs €7.50 one-way from El Prat to Plàça de Catalunya. The Rodalies train from El Prat costs €4.60 with a T-Casual and takes 25 minutes to the same destination. There is no argument for the Aerobus unless you have a reason to avoid the train.
