The average bus between Dún Laoghaire and Birr takes 4h 56m and the fastest bus takes 2h 42m. There is at least one bus per day from Dún Laoghaire to Birr. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run once daily between Dún Laoghaire and Birr. The earliest departure is at 12:12 PM in the afternoon, and the last departure from Dún Laoghaire is at 11:26 PM which arrives into Birr at 3:20 PM. All services require a transfer at Tara Street and take an average of 4h 56m. The schedules shown below are for the next available departures.

3h 8m • 1 change

3h 18m • 1 change

2h 58m • 1 change
Arrives next day

3h 33m • 1 change
Want to know about travelling from Dún Laoghaire to Birr? 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 bus from Dún Laoghaire to Birr. However, there are services departing from Dún Laoghaire station and arriving at Birr station via Birr. The journey, including transfers, takes approximately 4h 56m.
Dún Laoghaire to Birr bus services, operated by Iarnród Éireann (Irish Rail), depart from Wellington Quay station.
Dún Laoghaire to Birr bus services, operated by Iarnród Éireann (Irish Rail), arrive at Birr station.
The distance between Dún Laoghaire and Birr is 120.3 km. The road distance is 154 km.
Kearns Transport operates a bus from Wellington Quay to Birr every 4 hours. Tickets cost €9–13 and the journey takes 2h 15m.