Getting to Letterkenny is by means of car or bus only, as the town lacks a rail link.
By bus
The national bus company, Bus Ãireann runs nine trips per day to and from Dublin to Letterkenny. An adult single fare currently costs â¬20 and a return costs â¬27.00. The Bus Eireann time table from Letterkenny has recently been revamped and offers services during the night as well as early morning runs via the Airport.There are also private bus companies who run similar type services: McGinley (http://www.johnmcginley.com/) from Dublin, Gallagher (http://www.gallagherscoac...) from Belfast and O'Donnell (http://www.fedaodonnell.com/) from Galway, who also offer services into rural west Donegal.
By plane
Alternatively, visitors can fly to Donegal International Airport (http://www.donegalairport.ie/) or City of Derry Airport. The small airline company, Aer Ãrann (http://www.aerarann.ie/) operate a daily return service from Dublin to Donegal, with services to and from Glasgow also available. There is a bus service (http://www.aerbhus.com/) from Donegal International Airport into Letterkenny,which brings you along a very scenic route via Glenveagh National Park (http://www.letterkennygui...).
Car hire is available at Avis Car Rental, Donegal Airport, Co. Donegal, Tel: 00 353 074 9548232.
By car
There are three main road arteries into Letterkenny. One is via Derry if you are travelling from Northern Ireland. This is the best route if you are coming from Great Britain by air or sea.
Another is the N13 from Sligo via Bundoran, Ballyshannon and Donegal town, all of which are bypassed.
The third route from Dublin is the N2 via Monaghan, Strabane and Lifford. This journey takes about 4 hours. Use the M1 motorway from Dublin Airport, leave the motorway at Ardee exit to join the N2 and travel via Monaghan towards Derry, crossing the border into Northern Ireland at Aughnacloy. Turn off at Strabane for Lifford and then onto "Letterkenny". Many of the towns along this route are now by-passed by good roads, making the journey more pleasant than it has been in the past.