The average bus between Cardiff and Trethomas takes 1h 34m and the fastest bus takes 1h 9m. The bus service runs several times per day from Cardiff to Trethomas. 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 Cardiff and Trethomas. The earliest departure is at 6:15 AM in the morning, and the last departure from Cardiff is at 6:20 PM which arrives into Trethomas at 7:29 PM. All services require a transfer, and take on average 1h 34m. The schedules shown below are for the next available departures.

1h 12m • 1 change

1h 31m • 1 change

1h 47m • 1 change

1h 36m • 1 change

1h 12m • 1 change

1h 31m • 1 change

1h 47m • 1 change

1h 36m • 1 change

1h 12m • 1 change

1h 31m • 1 change

1h 47m • 1 change

1h 36m • 1 change

1h 12m • 1 change

1h 31m • 1 change

1h 47m • 1 change

1h 36m • 1 change
Want to know about travelling from Cardiff to Trethomas? 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 Cardiff to Trethomas. However, there are services departing from Cardiff station and arriving at Trethomas station via Newport Train Station station. The journey, including transfers, takes approximately 1h 34m.
Cardiff to Trethomas bus services, operated by FlixBus, depart from Cardiff North Road station.
Cardiff to Trethomas bus services, operated by FlixBus, arrive at The Square station.
The distance between Cardiff and Trethomas is 12.4 km. The road distance is 36 km.
You can take a bus from Cardiff North Road to The Square via Queensway Q5 in around 1h 23m.