Usulután is one of those places that that feels clogged and congested with buses and cars and chaos. The whole main highway seems like a long scattered terminal. Unless you are staying in Usulután you’re likely switching buses here and routing somewhere else. We have limited info and will update this each time we pass through but for now we can tell you this.
Marked on the map is Terminal Oriente and this is where the Especial Bus ($3) to San Salvador leaves from. Directo (ordinary) buses for Zacatecolouca ($0.75) pull up in front as well. We were told you can just wait on the other side of the street for buses heading to San Miguel, makes sense!
That covers your basics, stay tuned for more info.
Howdy!!