The average bus between Dundalk and Castleknock takes 2h 16m and the fastest bus takes 1h 53m. There is a bus service every few hours from Dundalk to Castleknock. 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 hourly between Dundalk and Castleknock. The earliest departure is at 5:30 AM in the morning, and the last departure from Dundalk is at 9:30 PM which arrives into Castleknock at 11:56 PM. All services require a transfer at Cathal Brugha St and take an average of 2h 16m. The schedules shown below are for the next available departures.

2h 28m • 1 change

1h 58m • 1 change

2h 3m • 1 change

2h 3m • 1 change

2h 27m • 1 change

1h 57m • 1 change

2h 2m • 1 change

2h 2m • 1 change

2h 3m • 1 change

1h 53m • 1 change

1h 55m • 1 change

2h 4m • 1 change

2h 3m • 1 change

1h 53m • 1 change

1h 55m • 1 change

2h 4m • 1 change
Want to know about travelling from Dundalk to Castleknock? 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 Dundalk to Castleknock. However, there are services departing from Dundalk station and arriving at Castleknock station via Cathal Brugha St. The journey, including transfers, takes approximately 2h 16m.
Dundalk to Castleknock bus services, operated by Matthews Coach Hire, depart from Marshes Shop Cntr station.
Dundalk to Castleknock bus services, operated by Matthews Coach Hire, arrive at St Brigid's Church station.
The distance between Dundalk and Castleknock is 69.8 km. The road distance is 94 km.
You can take a bus from Marshes Shop Cntr to St Brigid's Church via Cathal Brugha St and O'Connell St Upper in around 2h 22m.