The average bus between London and Castell Coch takes 4h 40m and the fastest bus takes 3h 56m. There is a bus service every few hours from London 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 every 2 hours between London and Castell Coch. The earliest departure is at 12:30 AM at night, and the last departure from London is at 11:59 PM which arrives into Castell Coch at 6:34 AM. All services require a transfer at Kingsway GR and take an average of 4h 40m. The schedules shown below are for the next available departures.

6h 4m • 1 change

3h 56m • 1 change

4h 11m • 1 change

4h 12m • 1 change

6h 4m • 1 change

4h 11m • 1 change

3h 56m • 1 change

4h 31m • 1 change

4h 11m • 1 change

3h 56m • 1 change

4h 31m • 1 change

4h 11m • 1 change

4h 11m • 1 change

3h 56m • 1 change

4h 31m • 1 change

4h 11m • 1 change

3h 56m • 1 change

4h 11m • 1 change

4h 12m • 1 change

4h 51m • 1 change
Want to know about travelling from London 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 London to Castell Coch. However, there are services departing from London station and arriving at Castell Coch station via Kingsway GR. The journey, including transfers, takes approximately 4h 40m.
London to Castell Coch bus services, operated by National Express, depart from London Victoria station.
London to Castell Coch bus services, operated by National Express, arrive at Kingsway GR station.
The distance between London and Castell Coch is 216.4 km. The road distance is 253 km.
National Express operates a bus from London Victoria to Kingsway GR hourly. Tickets cost £27–70 and the journey takes 3h 35m.