Though trams once trundled the streets of Tarnów, today the city makes do with an extensive public bus system, which runs daily from 04:00-24:00. Though most visitors will find them unnecessary for sightseeing around the Old Town, buses are essential for travelling to Mościce, St. Martin's Hill, and many hotels not located right in the centre. Bus timetables and network maps can be found online at komunikacja.tarnow.pl (in Polish only).

There are three ticket options: a single ride/30min ticket (multiple lines) for 3.20zł; a single ride/60min ticket for 4.60zł; and a 5 ride ticket (good on one line only) for 14zł. Tickets are sold primarily at kiosks and newsstands (like Ruch and Kolporter) around town; note that the bus driver only sells 60min tickets.

Most importantly, you must stamp your ticket immediately on boarding the bus in the small machines on-board, even if you bought your ticket on-board. Beware sneaky inspectors who regularly travel on the lines handing out costly fines to those without valid tickets.