Quickest 4h 18min
There are 4 buses from Cardiff to Caernarfon.
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There is just 1 way to travel from Cardiff to Caernarfon. 4 buses are possible between the two areas. The bus from Port Talbot to Caernarfon is the cheapest and fastest.
It's important to check each mode when booking your ticket so that you can find the best method for you. The cost of each type varies differently, so be sure to use Faretrotter to keep an eye out!