The average bus between Portishead and Cwmbran takes 2h 55m and the fastest bus takes 1h 54m. The bus service runs several times per day from Portishead to Cwmbran. 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 Portishead and Cwmbran. The earliest departure is at 5:26 AM in the morning, and the last departure from Portishead is at 11:10 PM which arrives into Cwmbran at 6:47 AM. All services require a transfer at Bus Station and take an average of 2h 55m. The schedules shown below are for the next available departures.


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2h 58m • 2 changesWant to know about travelling from Portishead to Cwmbran? 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 Portishead to Cwmbran. However, there are services departing from Portishead station and arriving at Cwmbran station via Bus Station station. The journey, including transfers, takes approximately 2h 55m.
Portishead to Cwmbran bus services, operated by First Bristol, Bath & the West, depart from Combe Road station.
Portishead to Cwmbran bus services, operated by First Bristol, Bath & the West, arrive at Kingsway K14 station.
The distance between Portishead and Cwmbran is 26 km. The road distance is 87 km.
You can take a bus from Combe Road to Llantarnam Grange via Bus Station, Kingsway K14, and Market Square 16 in around 2h 23m.