chez
Johnny Byrne-The Greatest
€20 each way. Return won't be much cheaper than 2x that and they're all day-returns.
Airport in to town is €2 on a local bus or up to €10 on a private express coach then its about €1.50 for a tram from the city centre to the correct train station (Heuston).
MYOB, tapping into your local(ish) knowledge, do you know how far Newcastle West is from Athlone??