Irish Rail operates a train from Dublin to Ballymena every 4 hours. Tickets cost $35 - $55 and the journey takes 2 h 13 min. Translink UK also services this route hourly. Alternatively, Aircoach operates a bus from Dublin to Ballymena every 15 minutes. Tickets cost $16 - $22 and the journey takes 2 h 20 min. 2 other operators also service this route.
From Connolly Train Station train to Belfast Central station then train to Ballymena station. 3 h 41 min 47€. From The Gresham Hotel bus to Belfast Europa Bus Centre then bus to Ballymena Bus Center. 3 h 45 min 33€. From Dublin drive to Ballymena. 2 h 14 min 29€.