Asunción's bus terminal is several kilometers southeast of downtown. Purchase long-distance tickets at the company offices on the 2nd floor. City buses 8 and 31 run along Oliva to the terminal, while buses 14, 18.2 and 38 run along Haedo. The ground floor is the departure lounge and the subsuelo (basement) is for departures to the Circuito de Oro.
Don't be put off by the touts shouting destinations at you – take your time to choose the company you want.