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Roscommon to Castleknock buses

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Trip Overview

The average bus between Roscommon and Castleknock takes 4h 23m and the fastest bus takes 2h 32m. The bus service runs several times per day from Roscommon 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.

4h 23m
Duration
146 km
Distance
€39
Average price
Every 4 hours
Frequency

Bus

best
  1. Take the bus from Roscommon to Longford Stationbus bus 426
  2. Take the bus from Longford Stn to Liffey Valley SCbus bus 23 / ...
3h 34m
€33–44

Roscommon to Castleknock bus times

Buses run every 4 hours between Roscommon and Castleknock. The earliest departure is at 8:00 AM in the morning, and the last departure from Roscommon is at 11:00 PM which arrives into Castleknock at 8:03 AM. All services require a transfer at Longford Stn and take an average of 4h 23m. The schedules shown below are for the next available departures.

Departing Saturday, October 17, 2026

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 44m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 30m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 10m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland2h 51m • 2 changes
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Departing Sunday, October 18, 2026

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 54m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 26m • 2 changes

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    Bus ÉireannExpressway (Bus Éireann)Go-Ahead Ireland2h 32m • 2 changes

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    Arrives next day

    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland10h 35m • 2 changes

Departing Monday, October 19, 2026

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 40m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 44m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 35m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 14m • 2 changes
  • Show more

Departing Tuesday, October 20, 2026

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 40m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 44m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 35m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 14m • 2 changes
  • Show more

Departing Wednesday, October 21, 2026

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 40m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 44m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 35m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 14m • 2 changes
  • Show more

Departing Thursday, October 22, 2026

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 40m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 44m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 35m • 2 changes

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 14m • 2 changes
  • Show more

Departing Friday, October 23, 2026

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    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 40m • 2 changes

  •  → 

    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 44m • 2 changes

  •  → 

    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 35m • 2 changes

  •  → 

    TFI Local Link Longford Westmeath RoscommonExpressway (Bus Éireann)Go-Ahead Ireland3h 14m • 2 changes
  • Show more

Frequently asked questions

Want to know about travelling from Roscommon 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.

Map of how to get from Roscommon to Castleknock.ExpandLaunch map view
  • Distance: 146 km
  • Duration: 4h 23m

What companies run services between Roscommon, Ireland and Castleknock, Ireland?

You can take a bus from Roscommon to Junction 6 via Longford Stn and Liffey Valley SC in around 3h 34m.

Operators