The average bus between Llanelli and Porthmadog takes 10h 12m and the fastest bus takes 7h 21m. The bus service runs several times per day from Llanelli to Porthmadog. 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 Llanelli and Porthmadog. The earliest departure is at 6:17 AM in the morning, and the last departure from Llanelli is at 6:31 PM which arrives into Porthmadog at 1:55 PM. All services require a transfer at Carmarthen Bus Station Stand 1 and take an average of 10h 12m. The schedules shown below are for the next available departures.



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7h 31m • 3 changes



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7h 31m • 3 changes
Want to know about travelling from Llanelli to Porthmadog? 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 Llanelli to Porthmadog. However, there are services departing from Llanelli station and arriving at Porthmadog station via The Black Lion. The journey, including transfers, takes approximately 10h 12m.
Llanelli to Porthmadog bus services, operated by First South & West Wales, depart from Carmarthen Bus Station Stand 1.
Llanelli to Porthmadog bus services, operated by First South & West Wales, arrive at Porthmadog Park A station.
The distance between Llanelli and Porthmadog is 138.3 km. The road distance is 214 km.
You can take a bus from New Road to Porthmadog Park A via Carmarthen Bus Station Stand 1, The Black Lion, and Aberystwyth Bus Station Stand 4 in around 6h 45m.