The average bus between Swansea and Caernarfon Castle takes 13h 50m and the fastest bus takes 9h 25m. The bus service runs several times per day from Swansea to Caernarfon Castle. 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 Swansea and Caernarfon Castle. The earliest departure is at 7:21 AM in the morning, and the last departure from Swansea is at 5:52 PM which arrives into Caernarfon Castle at 2:55 PM. All services require a transfer at Llanelli Bus Station Stand 4 and take an average of 13h 50m. The schedules shown below are for the next available departures.




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9h 55m • 4 changesWant to know about travelling from Swansea to Caernarfon Castle? 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 Swansea to Caernarfon Castle. However, there are services departing from Carmarthen Bus Station Stand 1 and arriving at Caernarfon Bus Station Stand A via The Black Lion station and Aberystwyth Bus Station Stand 7. The journey, including transfers, takes approximately 13h 50m.
Swansea to Caernarfon Castle bus services, operated by First South & West Wales, depart from Carmarthen Bus Station Stand 1.
Swansea to Caernarfon Castle bus services, operated by Lloyd's Coaches, arrive at Caernarfon Bus Station Stand A.
The distance between Swansea and Caernarfon Castle is 170.4 km. The road distance is 225 km.
You can take a bus from St Mary's Church 1 to Caernarfon Castle via Llanelli Bus Station Stand 4, Carmarthen Bus Station Stand 1, The Black Lion, Aberystwyth Bus Station Stand 4, and Caernarfon Bus Station Stand A in around 9h 31m.