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Travelling from Carmarthen to Cardiff Bay, the fastest train takes 2h 2m with an average travel time of 2h 25m. 34 trains are running daily, with the first departing at 04:38 and the last at 22:42. Stay updated with live train status, times, delays, and cancellations on TrainPal.
| Departs | Arrives | Operator | ||
|---|---|---|---|---|
| 16:56Carmarthen | 2h 10m, 2 change | 19:06Cardiff Bay | Transport for Wales | Find tickets | 
| 17:58Carmarthen | 2h 26m, 2 change | 20:24Cardiff Bay | Transport for Wales | Find tickets | 
| 18:18Carmarthen | 2h 36m, 2 change | 20:54Cardiff Bay | Great Western Railway | Find tickets | 
| 18:32Carmarthen | 2h 34m, 2 change | 21:06Cardiff Bay | Transport for Wales | Find tickets | 
| 18:57Carmarthen | 2h 27m, 2 change | 21:24Cardiff Bay | Transport for Wales | Find tickets | 
Travelling by train from Carmarthen to Cardiff Bay is efficient and offers a scenic and comfortable experience. With frequent departures from Carmarthen, you can reach Cardiff Bay in just 2h 2m, making it one of the fastest and most convenient ways to travel between these two places.

The fastest train journey time from Carmarthen to Cardiff Bay is 2h 2m . Direct trains can save significant time by avoiding transfers. Always check if a direct route is available for your journey. Moreover, when searching for trains, consider the total travel time. Some routes with fewer stops or more efficient schedules might be faster.
No, you will need to transfer when travelling from Carmarthen to Cardiff Bay. TrainPal Train Journey Planner will assist you in finding the best train route. Enter the origin or destination places and other relevant details, then click "Search" to find the most suitable route.

While Carmarthen to Cardiff Bay trains are usually on time, delays or disruptions may occur due to weather, strikes, and other factors. Finding a train timetable for your trip from Carmarthen to Cardiff Bay is easy with Train Journey Planner. Simply enter your departure and arrival stations to get a detailed schedule of available trains. Input your travel details to discover the best routes, connections, and train times.
It’s recommended to reach the train station 15-20 minutes before your train is set to leave. This gives you sufficient time to locate your platform, particularly in larger stations. Arriving early is also beneficial if you need to collect tickets or find your way around an unfamiliar station, helping to minimise any potential stress.
Yes, most trains on the route from Carmarthen to Cardiff Bay are equipped with Wi-Fi. Passengers can also enjoy complimentary food, drinks, and power sockets for a more comfortable journey. Please note that the availability of these services can vary depending on the train company
Check our Train Journey Planner, which provides detailed information about transfers to ensure your journey is uninterrupted, saving you time and effort, and allowing you to get a full rest for travelling.

Use TrainPal for quick access to live updates and notifications. If your phone allows messages from us, you'll receive instant notifications about train cancellations directly on your screen.
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