The cheapest way to the airport. The Rodalies R2 Nord is 15 minutes quicker for €3.75 more, which is not worth it at this party size.
Aerobús A1 and A2
A1A2 · UTE Servicio Aerobús, Monbus groupPickup, hours & luggage
Boards at. Plaça de Catalunya, calling at Carrer Sepúlveda and Plaça Espanya
The operator's current fares are EUR 7.75 single and EUR 13.30 return (an older page still shows EUR 7.45/12.85 — expect the higher price). The return is valid 90 days. Children under four travel free; single-parent and large-family discounts are sold only by staff, and there is no group ticket. No TMB ticket is valid on the Aerobús.
Luggage. A coach with luggage racks; the single covers one person and their luggage.