Arriva Trains Wales operates a train from Treforest to Cardiff every 20 minutes. Tickets cost $5 - $8 and the journey takes 17 min. Alternatively, Stagecoach South operates a bus from Treforest to Cardiff every 5 minutes. Tickets cost $7 and the journey takes 44 min. New Adventure Travel also services this route 3 times a week.
From Trefforest train to Cathays. 17 min £4. From Glyntaf, Castle Inn Bridge (Snow`s Garage (site)) bus to Cathays Park, Law Courts Stop RJ (Cardiff Crown Court). 44 min £5. From Treforest taxi to Cardiff. 15 min £31. From Treforest drive to Cardiff. 15 min £2. From Pontypridd rideshare to Cardiff. 32 min £1. From Treforest Uber to Cardiff. 15 min £25.