The average bus between Caernarfon and Carmarthen takes 8h 7m and the fastest bus takes 6h 42m. The bus service runs several times per day from Caernarfon to Carmarthen. 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 4 hours between Caernarfon and Carmarthen. The earliest departure is at 7:05 AM in the morning, and the last departure from Caernarfon is at 7:05 PM which arrives into Carmarthen at 7:47 AM. All services require a transfer at Aberystwyth Bus Station Stand 7 and take an average of 8h 7m. The schedules shown below are for the next available departures.


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Arrives next day


16h 42m • 2 changes


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Want to know about travelling from Caernarfon to Carmarthen? 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 Caernarfon to Carmarthen. However, there are services departing from Caernarfon station and arriving at Carmarthen station via Aberystwyth Bus Station Stand 4 station. The journey, including transfers, takes approximately 8h 7m.
Caernarfon to Carmarthen bus services, operated by Lloyd's Coaches, depart from Turf Square station.
Caernarfon to Carmarthen bus services, operated by Lloyd's Coaches, arrive at The Black Lion station.
The distance between Caernarfon and Carmarthen is 142.8 km. The road distance is 219 km.
You can take a bus from Turf Square to Council Offices via Aberystwyth Bus Station Stand 7 and The Black Lion in around 6h.