From Dublin city centre, take the M50 northbound and exit onto the M1 northbound; the airport is signposted.
For more details try the AA Route Planner
The airport has short and long-term
car parks, offering over 18,000 spaces.
Short-term Parking is available directly opposite the terminal building, while
long-term Parking is located on the eastern perimeter (accessed directly from
the motorway) with a 24-hour shuttle bus service to the terminal.