Lismore Castle is easily accessed from the main points of entry to Ireland from abroad and from the main towns and cities in Ireland, plus all of Ireland's major airports are within easy reach of the castle. There is a major international airport in Cork, just 50 minutes' drive from Lismore and a regional one in Waterford, 45 minutes away. Shannon and Dublin Airports are both approximately a three hour drive from the castle. Airport transfers can be arranged through the castle's concierge service. Car hire, chauffeur service or helicopter transfers are all easily facilitated.
- Shannon Airport serves Britain, Continental Europe and North America, with scheduled daily flights.
- Dublin Airport operates into several cities in Britain, Continental Europe and North America, with several scheduled daily flights.
- Cork International Airport operates scheduled flights to and from Britain and many Continental European cities.
- Waterford Airport operates daily flights to and from Britain.