The average bus between Cardiff Bay (Water) and Swansea takes 1h 50m and the fastest bus takes 1h 31m. There is a bus service every few hours from Cardiff Bay (Water) to Swansea. 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 Cardiff Bay (Water) and Swansea. The earliest departure is at 10:21 AM in the morning, and the last departure from Cardiff Bay (Water) is at 10:53 PM which arrives into Swansea at 12:45 AM. All services require a transfer at Cardiff Bus Interchange Bay 3 and take an average of 1h 50m. The schedules shown below are for the next available departures.


1h 43m • 2 changes


1h 41m • 2 changes


1h 43m • 2 changes


1h 31m • 2 changes


1h 43m • 2 changes


1h 31m • 2 changes


1h 43m • 2 changes


1h 31m • 2 changes


1h 59m • 2 changes


1h 44m • 2 changes


1h 49m • 2 changes


1h 59m • 2 changes


1h 43m • 2 changes


1h 41m • 2 changes


1h 43m • 2 changes


1h 36m • 2 changes
Want to know about travelling from Cardiff Bay (Water) to Swansea? 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 Bay (Water) to Swansea. However, there are services departing from Cardiff Bay (Water) station and arriving at Swansea station via Swansea Bus Station Stand B station. The journey, including transfers, takes approximately 1h 50m.
Cardiff Bay (Water) to Swansea bus services, operated by First South & West Wales, depart from Sophia Gardens station.
Cardiff Bay (Water) to Swansea bus services, operated by First South & West Wales, arrive at Swansea Bus Station Stand B.
The distance between Cardiff Bay (Water) and Swansea is 56.6 km. The road distance is 72 km.
National Express operates a bus from Sophia Gardens to Swansea Bus Station Stand B every 30 minutes. Tickets cost £8–20 and the journey takes 1h 15m.