Cheonan's buses are most useful when you combine the official live bus system with a transport card. Chungnam Province's current bus-fare table, dated July 2025 and still published as the active reference, lists Cheonan adult fares at KRW 1,600 cash or KRW 1,500 by card. It also lists up to two free local transfers within 45 minutes.
For a visitor, the practical routine is simple: search the exact stop and direction in Cheonan's official bus-information system, use one transport card, and tap when getting off so the transfer window can be recognized. Do not assume a route number alone identifies the correct direction.
Cheonan Station, Cheonan-Asan KTX Station and the intercity/bus-terminal area are separate arrival points, so check the first local leg before leaving your arrival hub. For an evening return, look at the live system again rather than relying on a daytime screenshot.
The provincial table also describes a wider-area transfer framework, but eligibility and K-Pass-linked rules are more complex than an ordinary visitor's local transfer. This guide therefore treats the clearly published Cheonan local rule as the default and asks travelers to recheck any cross-city trip.