Not sure if here is the right place to post it but from Sun 12 June Bus Eiriann operate Waterford - Dublin Airport via Dublin City. Route 4 replacing Waterford - Dublin City. New Timetable (MON - SUN)
Dep Dublin Airport (Atruim Road) -
07:00, 09:00, 11:15, 13:15, 15:00, 16:50, 19:15, 21:45
Dep Dublin Busaris -
07:30, 09:30. 11:45, 13:45, 15:30, 17:30, 19:45, 22:15, 23:45
ArrWaterford -
10:20, 12:20, 14:35, 16:35, 18:20, 20:20, 22:35. 00:45, 02:15Depart Waterford - 03:00, 05:00, 07:00, 09:00, 10:45, 13:00, 15:00, 18:00, 19:00Arr Dublin Busaris - 05:35, 07:35, 09:50, 11:50, 13:35, 15:35, 17:50, 20:20, 21:50 Arr Dublin Airport - 05:55, 07:55, 10:10, 12:10, 13:55, 15:55, 18:10, 20:40,
http://www.buseireann.ie/inner.php?id=237