Next bus departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Bus | Castlebar Stephen Garvey Way | Letterkenny Bus Station | Cheapest | ||||
| Bus | Castlebar Stephen Garvey Way | Letterkenny Port | Fastest | ||||
| Bus | Castlebar Stephen Garvey Way | Letterkenny Bus Station | No tags | ||||
| Bus | Castlebar Stephen Garvey Way | Letterkenny Bus Station | No tags | ||||
| Bus | Castlebar Stephen Garvey Way | Letterkenny Bus Station | No tags |
Last refresh of the prices: Today at 2:58 AM GMT.
Get from Castlebar to Letterkenny
The journey takes about 9 hours 10 minutes, and with fares starting at just $79, it presents an excellent value for a comfortable ride.
Where are the popular stops in Castlebar and Letterkenny?
Stops in Castlebar
- A
Castlebar - Stephen Garvey Way Bus Stop
Stephen Garvey Way, Castlebar, Co. Mayo, Ireland
Stops in Letterkenny
- A
Letterkenny - Bus Station
Ramelton Rd, Letterkenny, Co. Donegal, Ireland
Compare bus companies
Based on 495 reviews, the company was rated 3.8 stars on Busbud. Travellers were especially satisfied with the staff and the ticket access but often complained with the Wi‑Fi. Expressway ticket prices on this trip start at $79
Frequently asked questions about travelling from Castlebar to Letterkenny by bus
Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.
How much is the bus ticket from Castlebar to Letterkenny?
The cheapest bus tickets from Castlebar to Letterkenny start from $79. The average price for this route is around $83. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus ride from Castlebar to Letterkenny?
The average bus travel time from Castlebar to Letterkenny is 9h 10m, covering a distance of 160 km. The quickest bus can get you there in 7h 33m and is operated by Expressway.
Which bus companies service the Castlebar to Letterkenny route?
Several major bus companies operate on this route with 19 buses available per day.
What are the earliest and latest departure times for the bus from Castlebar to Letterkenny?
The earliest bus departs from Castlebar to Letterkenny at 6:47am. And the latest bus departs at 12:23pm.
What are the CO₂ emissions for the bus trip from Castlebar to Letterkenny?
A bus trip from Castlebar to Letterkenny generates an estimated 4 kg of CO₂, making it a highly eco-friendly travel option and a mode of travel recommended by Busbud.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Castlebar to Letterkenny was searched and found on Feb 2, 2026 with a price of $56To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Castlebar to Letterkenny, as early as possible.
You can expect to pay from $56 to $102 for a bus ticket from Castlebar to Letterkenny based on the last 2 days. You can expect to find the cheapest price for the trip at $56 which is on 2026-02-02.
