An intercity bus service carries out routes between Arachova and Itea and between Arachova and Amfissa, too. In order to reach Arachova from Athens, you have to take the KTEL bus with direction to Delphi or Amfissa from Liossion bus station. The bus makes a stop in Arachova before reaching its final destination. The bus trip from Athens to Arachova is about 3 hours.
You can find further information on www.ktel-fokidas.gr.