| Portland to Celbridge | 4,639.09 mi (7,465.89 km) |
| Portland to Clondalkin | 4,644.04 mi (7,473.85 km) |
| Portland to Clonmel | 4,655.06 mi (7,491.59 km) |
| Portland to Cobh | 4,663.11 mi (7,504.55 km) |
| Portland to Cork | 4,655.69 mi (7,492.61 km) |
| Portland to Donegal | 4,529.27 mi (7,289.16 km) |
| Portland to Douglas | 4,657.74 mi (7,495.90 km) |
| Portland to Drogheda | 4,625.27 mi (7,443.65 km) |
| Portland to Dublin | 4,646.31 mi (7,477.51 km) |
| Portland to Dun Dealgan | 4,608.98 mi (7,417.43 km) |
| Portland to Ennis | 4,593.61 mi (7,392.70 km) |
| Portland to Enniscorthy | 4,680.60 mi (7,532.70 km) |
| Portland to Finglas | 4,641.94 mi (7,470.47 km) |
| Portland to Galway | 4,570.64 mi (7,355.74 km) |
| Portland to Glanmire | 4,656.78 mi (7,494.37 km) |
