| Isernia to Naas | 1,256.51 mi (2,022.15 km) |
| Isernia to Navan | 1,272.92 mi (2,048.57 km) |
| Isernia to Nenagh | 1,299.94 mi (2,092.05 km) |
| Isernia to Palmerston | 1,251.25 mi (2,013.70 km) |
| Isernia to Port Laoise | 1,272.68 mi (2,048.19 km) |
| Isernia to Rath To | 1,259.92 mi (2,027.65 km) |
| Isernia to Rathfarnham | 1,246.10 mi (2,005.40 km) |
| Isernia to Ros Comain | 1,324.94 mi (2,132.28 km) |
| Isernia to Rush | 1,247.59 mi (2,007.81 km) |
| Isernia to Shannon | 1,320.16 mi (2,124.58 km) |
| Isernia to Sligo | 1,357.53 mi (2,184.74 km) |
| Isernia to Swords | 1,249.71 mi (2,011.22 km) |
| Isernia to Tallaght | 1,248.24 mi (2,008.85 km) |
| Isernia to Tralee | 1,338.63 mi (2,154.31 km) |
| Isernia to Tramore | 1,238.11 mi (1,992.55 km) |
