The average bus between Dundalk and Castlebar takes 5h 36m and the fastest bus takes 5h. The bus service runs several times per day from Dundalk to Castlebar. 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 every 4 hours between Dundalk and Castlebar. The earliest departure is at 6:00 AM in the morning, and the last departure from Dundalk is at 9:30 PM which arrives into Castlebar at 3:45 AM. All services require a transfer at Cathal Brugha Street and take an average of 5h 36m. The schedules shown below are for the next available departures.

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Want to know about travelling from Dundalk to Castlebar? 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 Castlebar. However, there are services departing from Dundalk station and arriving at Castlebar station via Cathal Brugha Street. The journey, including transfers, takes approximately 5h 36m.
Dundalk to Castlebar bus services, operated by Matthews Coach Hire, depart from Marshes Shopping Centre station.
Dundalk to Castlebar bus services, operated by Matthews Coach Hire, arrive at Castlebar station.
The distance between Dundalk and Castlebar is 189.3 km. The road distance is 329 km.
You can take a bus from Marshes Shopping Centre to Castlebar via Cathal Brugha Street and Crampton Quay in around 6h 11m.