Dublin Airport Authority says the airport is fully operational this morning, despite another night of freezing conditions.
At Cork Airport, temperatures reached as low as minus five degrees overnight, and snow and ice clearing teams worked through the night to keep the runway, taxiway and apron area open for flight operations.
Officials at Cork, Dublin and Shannon airports are still advising intending passengers to contact their airline before leaving home.
Irish Rail says they have a full network operating today, with only minor delays.
Bus Éireann says they hoave had to cancel some services in the north and east of the country this morning, after the weather forced some restrictions to be put in place last night.
Route 100 Newry Dundalk Drogheda – Not serving Ravensdale or Monasterboice.
Route 2: Dublin/Rosslare – Operating - 8am Dublin Airport –Rosslare cancelled
Route 65 Cavan Athlone – Cancelled.
Route 33: Dublin/Derry – Operating with delays, 1000 Ex Busaras-Derry cancelled
Route 107: Dublin/Kingscourt – Operating to and from Navan only
Route 108: Dublin/Bailieboro Operating to and from Kells only.
Route 109A: Navan/DCU – Operating; not serving Ratoath or Ashbourne
Route 111: Dublin/Athboy – Operating with delays; not serving Delvin or Kildalkey
Route 120: Dublin/Edenderry – Operating delays not serving Edenderry Shopping centre, terminating at Courthouse; not serving Straffan
Route 121: Edenderry/Tullamore – not serving Rhode or Croghan
Route 123: Dublin/Clane – Operating with delays not serving Straffan
Route 126: Dublin/Newbridge/Kildare – Operating with delays not serving Turf bog Lane or Japanese Gardens
Route 133: Dublin/Wicklow – Operating, not serving ‘’Leg of Mutton’’, No service between Arklow –Wicklow via Rathdrum @8am
Route 111 Cavan Athboy - Operating Cavan Granard only.
Route 161 Dundalk Carlingford Newry – Operating main roads only.
Route 163 Drogheda Donore – Cancelled,
Route 166 Dundalk Carrickmacross – 9.45am Ex Dundalk and 1.30pm Ex Cavan cancelled.
Route 167 Dundalk Ardee –.not serving Tallanstown or Knockbridge.
Route 168 Dundalk Annagassan - Cancelled
Route 175 Monaghan Cavan - Cancelled
Route 182 Drogheda Ardee – Cancelled.
Route 187 Oldcastle Kells – Cancelled.
Route 188 Drogheda Trim – Cancelled.
Route 189 Drogheda Clogher Village – Cancelled.
Route 190 Drogheda Laytown – Cancelled.
Route 104 Balbriggan Town Service – Cancelled.
Route 173 Drogheda Town Service – Cancelled.
Route 174 Dundalk Town Service - Not serving Marian Park
Route 174 Dundalk Town Service - Not serving Coxes Demesne