The average bus between Penarth and Castell Coch takes 1h 29m and the fastest bus takes 1h 2m. There is an hourly bus service from Penarth to Castell Coch. 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 hourly between Penarth and Castell Coch. The earliest departure is at 6:30 AM in the morning, and the last departure from Penarth is at 10:40 PM which arrives into Castell Coch at 6:34 AM. All services require a transfer at Cardiff Bus Interchange Bay 4 and take an average of 1h 29m. The schedules shown below are for the next available departures.


1h 20m • 2 changes

1h 22m • 2 changes

1h 4m • 2 changes

1h 25m • 2 changes

1h 8m • 2 changes

1h 28m • 2 changes

1h 27m • 2 changes

1h 20m • 2 changes

1h 35m • 2 changes

1h 16m • 2 changes

1h 23m • 2 changes

1h 11m • 2 changesWant to know about travelling from Penarth to Castell Coch? 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 Penarth to Castell Coch. However, there are services departing from Penarth station and arriving at Castell Coch station via Cardiff Bus Interchange Bay 7. The journey, including transfers, takes approximately 1h 29m.
Penarth to Castell Coch bus services, operated by Cardiff Bus, depart from Windsor Terrace station.
Penarth to Castell Coch bus services, operated by Cardiff Bus, arrive at Ynys Bridge station.
The distance between Penarth and Castell Coch is 12.2 km. The road distance is 18 km.
You can take a bus from Windsor Terrace to Castell Coch via Cardiff Bus Interchange Bay 4, Three Elms, and Ynys Bridge in around 1h 13m.