| Isernia to Pantelimon | 634.64 mi (1,021.35 km) |
| Isernia to Pascani | 727.98 mi (1,171.57 km) |
| Isernia to Pechea | 732.05 mi (1,178.12 km) |
| Isernia to Pecica | 463.65 mi (746.17 km) |
| Isernia to Petrila | 530.71 mi (854.10 km) |
| Isernia to Petrosani | 527.52 mi (848.96 km) |
| Isernia to Piatra Neamt | 702.83 mi (1,131.10 km) |
| Isernia to Pitesti | 579.87 mi (933.21 km) |
| Isernia to Ploiesti | 635.31 mi (1,022.44 km) |
| Isernia to Podu Iloaiei | 749.47 mi (1,206.16 km) |
| Isernia to Poiana Mare | 476.29 mi (766.52 km) |
| Isernia to Poienile de sub Munte | 658.46 mi (1,059.70 km) |
| Isernia to Popesti-Leordeni | 632.05 mi (1,017.19 km) |
| Isernia to Pucioasa | 610.87 mi (983.10 km) |
| Isernia to Radauti | 716.08 mi (1,152.43 km) |
