The average bus between Carmarthen and Ystalyfera takes 6h 42m and the fastest bus takes 3h 20m. The bus service runs several times per day from Carmarthen to Ystalyfera. 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 3 times a day between Carmarthen and Ystalyfera. The earliest departure is at 10:00 AM in the morning, and the last departure from Carmarthen is at 7:40 PM which arrives into Ystalyfera at 7:20 AM. All services require a transfer at Ammanford Bus Station Stand 3 and take an average of 6h 42m. The schedules shown below are for the next available departures.


3h 20m • 2 changes
Arrives next day


14h 15m • 2 changes
Arrives next day


13h 27m • 2 changes


3h 37m • 2 changes


3h 29m • 2 changes


3h 20m • 2 changes
Arrives +2 days


35h 40m • 2 changes


3h 37m • 2 changes


3h 29m • 2 changes


3h 20m • 2 changes
Arrives next day


11h 40m • 2 changes


3h 37m • 2 changes


3h 29m • 2 changes


3h 20m • 2 changes
Arrives next day


11h 40m • 2 changes
Want to know about travelling from Carmarthen to Ystalyfera? 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 Carmarthen to Ystalyfera. However, there are services departing from Carmarthen station and arriving at Ystalyfera station via Ammanford Bus Station Stand 4 station. The journey, including transfers, takes approximately 6h 42m.
Carmarthen to Ystalyfera bus services, operated by First South & West Wales, depart from Carmarthen Bus Station Stand 5.
Carmarthen to Ystalyfera bus services, operated by First South & West Wales, arrive at Wind Road station.
The distance between Carmarthen and Ystalyfera is 37.1 km. The road distance is 59 km.
You can take a bus from Carmarthen Bus Station Stand 5 to Wind Road via Ammanford Bus Station Stand 3, Arfryn, and Mountain Road in around 3h 29m.