| Portsmouth to Naas | 289.76 mi (466.32 km) |
| Portsmouth to Navan | 307.65 mi (495.11 km) |
| Portsmouth to Nenagh | 335.09 mi (539.28 km) |
| Portsmouth to Palmerston | 285.17 mi (458.94 km) |
| Portsmouth to Port Laoise | 306.03 mi (492.51 km) |
| Portsmouth to Rath To | 294.37 mi (473.74 km) |
| Portsmouth to Rathfarnham | 279.97 mi (450.57 km) |
| Portsmouth to Ros Comain | 358.06 mi (576.24 km) |
| Portsmouth to Rush | 283.00 mi (455.45 km) |
| Portsmouth to Shannon | 357.71 mi (575.67 km) |
| Portsmouth to Sligo | 391.83 mi (630.60 km) |
| Portsmouth to Swords | 284.44 mi (457.77 km) |
| Portsmouth to Tallaght | 281.97 mi (453.79 km) |
| Portsmouth to Tralee | 383.26 mi (616.80 km) |
| Portsmouth to Tramore | 276.86 mi (445.57 km) |
