Buses passing through Tongwynlais are operated by Stagecoach and NAT.

Route 132 travels from Cardiff City Centre to Maerdy and Maerdy to Cardiff City Centre.
Click here for a 132 timetable

Route 26 travels Blackwood, Caerphilly to Cardiff City Centre and Cardiff City Centre to Blackwood, Caerphilly.
Click here for a 26 timetable

Route G1 travels from Gabalfa to Gwaelod-y-Garth via Whitchurch
Click here for a G1 timetable