From Dublin Airport
Taxi, Aircoach, Airlink or Dublin Bus - you have many options and it's fast!
Dublin Airport to The Holyhead
TAXI cost 15 to 20€ (do not agree on a fix price, use the meter).
The AIRCOACH drives you luxuriously to O'Connell Street, for 7€ one way or 12€ return. Book here.
The AIRLINK to Busáras Bus Station (only 1 min walk away) or Gardiner Street (only 50m away) costs 6€ one way or 10€ return (included with 3 days & 1 week tickets from Dublin Bus)
DUBLIN BUSES 41 & 16 to O'Connell Street, cost only 2.40€ one way! You can find them behind the parking opposite the main exit at the arrival Terminal 1.