The average bus between London and Castell Coch takes 4h 49m 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 6:00 PM which arrives into Castell Coch at 11:06 PM. All services require a transfer at Kingsway GR and take an average of 4h 49m. The schedules shown below are for the next available departures.

4h 41m • 1 change

3h 56m • 1 change

4h 11m • 1 change

4h 30m • 1 change

6h 4m • 1 change

4h 41m • 1 change

3h 56m • 1 change

4h 11m • 1 change

10h 2m • 1 change

4h 2m • 1 change

5h 2m • 1 change

5h 2m • 1 change

10h 2m • 1 change

4h 2m • 1 change

5h 2m • 1 change

5h 2m • 1 change

6h 4m • 1 change

4h 41m • 1 change

4h 11m • 1 change

4h 30m • 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 49m.
London to Castell Coch bus services, operated by FlixBus, depart from London Victoria station.
London to Castell Coch bus services, operated by FlixBus, 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 £28–70 and the journey takes 3h 35m. FlixBus also services this route every 2 hours.