There are 3 ways to get from Roscommon to Castleknock by train, bus, or car
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Roscommon to Castleknock by train, tram, and bus
Comparing Your Travel Options
The cheapest way to get from Roscommon to Castleknock is to train which costs €18 - €25 and takes 2h 21m.
The fastest way to get from Roscommon to Castleknock is to drive which takes 1h 48m and costs €24 - €35.
No, there is no direct bus from Roscommon to Castleknock. However, there are services departing from Roscommon and arriving at Junction 6 via Longford Stn and Liffey Valley SC. The journey, including transfers, takes approximately 3h 34m.
No, there is no direct train from Roscommon to Castleknock. However, there are services departing from Roscommon and arriving at Smithfield via Heuston. The journey, including transfers, takes approximately 2h 21m.
The distance between Roscommon and Castleknock is 167 km. The road distance is 138.5 km.
The best way to get from Roscommon to Castleknock without a car is to train which takes 2h 21m and costs €18 - €25.
It takes approximately 2h 21m to get from Roscommon to Castleknock, including transfers.
Roscommon to Castleknock bus services, operated by TFI Local Link Longford Westmeath Roscommon, depart from Roscommon station.
Roscommon to Castleknock train services, operated by Iarnród Éireann (Irish Rail), depart from Roscommon station.
The best way to get from Roscommon to Castleknock is to train which takes 2h 21m and costs €18 - €25. Alternatively, you can bus, which costs €30 - €45 and takes 3h 34m.
What companies run services between Roscommon, Ireland and Castleknock, Ireland?
Iarnród Éireann (Irish Rail) operates a train from Roscommon to Dublin Heuston every 3 hours. Tickets cost €14–20 and the journey takes 1h 52m. Alternatively, you can take a bus from Roscommon to Junction 6 via Longford Stn and Liffey Valley SC in around 3h 34m.
- Phone
- 0818 294 015
- Website
- Iarnród Éireann (Irish Rail)
Train from Roscommon to Dublin Heuston
- Ave. Duration
- 1h 52m
- Frequency
- Every 3 hours
- Estimated price
- €14–20
- Website
- Iarnród Éireann (Irish Rail)
- Flexible
- €14–20
Bus from Roscommon to Longford Station
- Ave. Duration
- 37 min
- Frequency
- Every 4 hours
- Estimated price
- €3–7
- Website
- TFI Local Link Longford Westmeath Roscommon
- Leap
- €3–5
- Cash
- €5–7
- Phone
- +353 1 836 6111
- customercare@buseireann.ie
- Website
- Bus Éireann
Bus from Roscommon to Longford Station
- Ave. Duration
- 36 min
- Frequency
- Once daily
- Estimated price
- €12–17
- Website
- Bus Éireann
- Standard
- €12–17
- Phone
- 0818 15 15 15
- Website
- Expressway (Bus Éireann)
Bus from Longford Stn to Liffey Valley SC
- Ave. Duration
- 1h 36m
- Frequency
- Every 2 hours
- Estimated price
- €17–24
- Website
- Expressway (Bus Éireann)
Want to know more about travelling around the world?
Rome2Rio's Travel Guide series provide vital information for the global traveller. Read our range of informative guides on popular transport routes and companies - including How to get from Southend Airport into central London, Travel Insider: Top Japan travel tips by Beatrix Holland, and How to travel India's Golden Triangle - to help you get the most out of your next trip.
Booking & Getting There
Roscommon to Castleknock bus services, operated by TFI Local Link Longford Westmeath Roscommon, arrive at Longford Station.
Roscommon to Castleknock train services, operated by Iarnród Éireann (Irish Rail), arrive at Dublin Heuston station.
Yes, the driving distance between Roscommon to Castleknock is 138 km. It takes approximately 1h 48m to drive from Roscommon to Castleknock.
There are 1142+ hotels available in Castleknock.