The average bus between Llanberis and Porthmadog takes 1h 56m and the fastest bus takes 1h 28m. There is a bus service every few hours from Llanberis 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 2 hours between Llanberis and Porthmadog. The earliest departure is at 8:52 AM in the morning, and the last departure from Llanberis is at 9:11 PM which arrives into Porthmadog at 10:59 PM. All services require a transfer, and take on average 1h 56m. The schedules shown below are for the next available departures.

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2h 8m • 1 changeWant to know about travelling from Llanberis 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 Llanberis to Porthmadog. However, there are services departing from Hsbc station and arriving at The Australia station via Caernarfon Bus Station Stand B. The journey, including transfers, takes approximately 1h 56m.
Llanberis to Porthmadog bus services, operated by Gwynfor Coaches, depart from Hsbc station.
Llanberis to Porthmadog bus services, operated by TaithCymru, arrive at The Australia station.
The distance between Llanberis and Porthmadog is 21.8 km. The road distance is 35 km.
You can take a bus from Hsbc to The Australia via Caernarfon Bus Station Stand B in around 1h 33m.