The average bus between Porth and Cardiff Bay takes 1h 51m and the fastest bus takes 1h 38m. The bus service runs several times per day from Porth to Cardiff Bay. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 3 hours between Porth and Cardiff Bay. The earliest departure is at 6:30 AM in the morning, and the last departure from Porth is at 4:18 PM which arrives into Cardiff Bay at 6:10 PM. All services require a transfer, and take on average 1h 51m. The schedules shown below are for the next available departures.

1h 52m • 1 change

2h 4m • 1 change

1h 55m • 1 change

1h 49m • 1 change

1h 52m • 1 change

2h 4m • 1 change

1h 55m • 1 change

1h 49m • 1 change

1h 52m • 1 change

2h 4m • 1 change

1h 55m • 1 change

1h 49m • 1 change

1h 52m • 1 change

2h 4m • 1 change

1h 55m • 1 change

1h 49m • 1 change

1h 52m • 1 change

2h 4m • 1 change

1h 55m • 1 change

1h 49m • 1 change
Want to know about travelling from Porth to Cardiff Bay? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Porth to Cardiff Bay. However, there are services departing from Porth station and arriving at Cardiff Bay station via Cardiff Bus Interchange Bay 1. The journey, including transfers, takes approximately 1h 51m.
Porth to Cardiff Bay bus services, operated by Stagecoach South Wales, depart from Porth Interchange Bay 2 station.
Porth to Cardiff Bay bus services, operated by Stagecoach South Wales, arrive at Cardiff Bus Interchange Bay 1 station.
The distance between Porth and Cardiff Bay is 23.6 km. The road distance is 37 km.
Stagecoach South Wales operates a bus from Porth Interchange Bay 2 to Cardiff Bus Interchange Bay 1 hourly. Tickets cost £6–10 and the journey takes 1h 27m.