Translink UK operates a bus from Ballymena to Dublin hourly, and the journey takes 1 h. 2 other operators also service this route. Alternatively, Translink UK operates a train from Ballymena to Dublin hourly. Tickets cost $9 - $12 and the journey takes 51 min. Irish Rail also services this route every 4 hours.
From Ballymena Bus Center bus to Belfast, Europa Bus Centre then bus to The Gresham Hotel. 3 h 16 min 32€. From Ballymena station train to Belfast Central Train Station then train to Connolly Train Station. 4 h 1 min 47€. From Ballymena drive to Dublin. 2 h 14 min 30€.