Llangynllo railway station is on the Heart of Wales line from Shrewsbury to Swansea. Located 1.5 miles north of the village (turn off the B4356 in the village and follow minor roads); the postcode is LD7 1SY. The station is unstaffed; buy tickets on the train. Live Departure screens, payphone. Llangynllo is a request stop; ask the conductor/indicate to the driver for the train to stop.
Train times from 11 December to 20 May 2017 are:-
Departures for Swansea/arrivals from Shrewsbury Monday to Friday are at 07.10, 11.15, 15.11 & 19.31; Saturday 06.25, 10.08, 15.02 & 19.02. Sunday at 13.11 & 17.24.
Departures for Shrewsbury/arrivals from Swansea Monday to Friday are at 06.42 (from Llandrindod), 09.09, 12.25, 17.23 & 21.43; Saturday 07.18, 12.05, 16.06 & 21.04. Sunday at 14.07 & 18.25.