Dublin Airport offers direct flights to Chicago, Boston, New York, Newark, Philadelphia, Washington, Charlotte, Atlanta and Orlando. The airport also offers full US Pre-Clearance facilities – allowing travelers to land in the USA as a domestic passenger. Dublin Airport is approximately 3hr30min (195 miles) from Aghadoe Heights Hotel & Spa.
A favorable option would be to fly into Dublin and spend a few days making your way to Killarney and then fly out of Shannon (of vice versa)
Guests flying in or out of Shannon Airport may also choose to incorporate the world famous Cliffs of Moher into their itinerary while they are exploring the west coast of Ireland.