The average train between Castlerock and Dublin takes 4h 39m and the fastest train takes 4h 3m. There is a train service every few hours from Castlerock to Dublin. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 2 hours between Castlerock and Dublin. The earliest departure is at 6:41 AM in the morning, and the last departure from Castlerock is at 9:08 PM which arrives into Dublin at 8:23 AM. All services require a transfer, and take on average 4h 39m. The schedules shown below are for the next available departures.

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Want to know about travelling from Castlerock to Dublin? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Castlerock to Dublin. However, there are services departing from Castlerock station and arriving at Dublin station via Belfast Great Central. The journey, including transfers, takes approximately 4h 39m.
Castlerock to Dublin train services, operated by Translink, depart from Castlerock station.
Castlerock to Dublin train services, operated by Translink, arrive at Dublin Connolly station.
The distance between Castlerock and Dublin is 206.7 km. The road distance is 287 km.
You can take a train from Castlerock to Dublin Connolly via Belfast Great Central in around 4h 24m.