 It is served by a bus service (the T4 operated by Stagecoach Wales) which connects Cardiff to Newtown via Merthyr Tydfil, Brecon, Builth Wells and Llandrindod Wells.Llanbister is situated on the A483 main road from Newtown to Llandrindod Wells, at its junction with the B4356 road.It also lies next to the River Ithon which flows southward just west of the village.