The average bus between Cavan and Letterkenny takes 3h 56m and the fastest bus takes 2h 43m. The bus service runs several times per day from Cavan to Letterkenny. 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 Cavan and Letterkenny. The earliest departure is at 2:28 AM at night, and the last departure from Cavan is at 5:45 PM which arrives into Letterkenny at 8:55 PM. All services require a transfer, and take on average 3h 56m. The schedules shown below are for the next available departures.

6h 55m • 1 change

3h 33m • 1 change

3h 45m • 1 change

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6h 53m • 1 change

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3h 45m • 1 change

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3h 33m • 1 change

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3h 45m • 1 change

6h 53m • 1 change

3h 18m • 1 change

3h 35m • 1 change

3h 35m • 1 change

6h 55m • 1 change

3h 18m • 1 change

3h 35m • 1 change

3h 35m • 1 change

6h 55m • 1 change

3h 18m • 1 change

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3h 35m • 1 change

6h 55m • 1 change

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3h 35m • 1 change
Want to know about travelling from Cavan to Letterkenny? 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 Cavan to Letterkenny. However, there are services departing from Cavan station and arriving at Letterkenny station via Donegal. The journey, including transfers, takes approximately 3h 56m.
Cavan to Letterkenny bus services, operated by Expressway (Bus Éireann), depart from Cavan Bus Station.
Cavan to Letterkenny bus services, operated by Expressway (Bus Éireann), arrive at ATU Letterkenny station.
The distance between Cavan and Letterkenny is 109.3 km. The road distance is 165 km.
You can take a bus from Cavan Bus Station to ATU Letterkenny via Donegal in around 3h 32m.