Lettermullan to
HowthStep by step driving directions and route map on how to go from Lettermullan to Howth by road.
Reverse route: Driving directions from Howth to Lettermullan
R336, M6
173.3 mi3 hours 41 mins
| Depart | 200 feet | |
| Turn left onto R374 | 11.1 mi | |
| End of road left onto R343 | 0.3 mi | |
| New name straight onto R336 | 20.9 mi | |
| New name straight onto R337 Kingston Road | 1.0 mi | |
| Turn left onto R338 Bishop O'Donnell Road | 0.2 mi | |
| Rotary slight left onto R338 Bishop O'Donnell Road | 200 feet | |
| Exit rotary slight left onto R338 Bishop O'Donnell Road | 0.2 mi | |
| New name straight onto R338 Rahoon Road | 0.2 mi | |
| New name straight onto R338 Seamus Quirke Road | 0.6 mi | |
| Rotary straight onto N6 Bóthar Na dTreabh | 200 feet | |
| Exit rotary left onto N6 Bóthar Na dTreabh | 0.9 mi | |
| Turn left onto N6 Headford Road | 0.4 mi | |
| Turn slight right onto N6 Bóthar Na dTreabh | 3.0 mi | |
| Off ramp slight left onto N6 | 2.2 mi | |
| New name straight onto M6 | 44.5 mi | |
| New name straight onto N6 Athlone Bypass | 4.5 mi | |
| New name straight onto M6 | 36.4 mi | |
| Merge slight left onto M4 | 27.6 mi | |
| New name straight onto N4 Leixlip Road | 0.2 mi | |
| New name straight onto N4 Lucan Bypass | 2.2 mi | |
| New name straight onto N4 Lucan Road | 1.3 mi | |
| Off ramp straight | 0.3 mi | |
| Merge slight right onto M50 Western Parkway Motorway | 1.5 mi | |
| New name straight onto M50 Northern Cross Route Motorway | 6.1 mi | |
| Off ramp slight right onto M50 Northern Cross Route | 0.5 mi | |
| Turn slight right | 500 feet | |
| Fork slight left onto R139 | 0.3 mi | |
| Roundabout straight onto R139 | 200 feet | |
| Exit roundabout slight left onto R139 | 2.0 mi | |
| Roundabout left onto R139 Clarehall Avenue | 200 feet | |
| Exit roundabout slight left onto R139 Clarehall Avenue | 0.4 mi | |
| Rotary left onto R139 Grange Road | 200 feet | |
| Exit rotary left onto R139 Grange Road | 1.1 mi | |
| New name straight onto Brookstone Road | 800 feet | |
| New name straight onto Dublin Street | 0.2 mi | |
| Turn right onto R106 Strand Road | 0.3 mi | |
| New name straight onto R106 Station Road | 0.5 mi | |
| Turn slight left onto R105 Howth Road | 1.6 mi | |
| New name straight onto R105 Harbour Road | 0.3 mi | |
| Arrive onto R105 Harbour Road |