| Isernia to Roeselare | 833.87 mi (1,341.98 km) |
| Isernia to Ronse | 809.83 mi (1,303.29 km) |
| Isernia to Rotselaar | 788.70 mi (1,269.29 km) |
| Isernia to Rumst | 803.84 mi (1,293.66 km) |
| Isernia to Saint-Ghislain | 788.18 mi (1,268.46 km) |
| Isernia to Saint-Nicolas | 749.32 mi (1,205.91 km) |
| Isernia to Saint-Vith | 714.18 mi (1,149.37 km) |
| Isernia to Scherpenheuvel | 784.87 mi (1,263.12 km) |
| Isernia to Schilde | 807.85 mi (1,300.11 km) |
| Isernia to Schoten | 810.55 mi (1,304.45 km) |
| Isernia to Seneffe | 779.61 mi (1,254.66 km) |
| Isernia to Seraing | 747.45 mi (1,202.90 km) |
| Isernia to Sint-Amandsberg | 821.05 mi (1,321.35 km) |
| Isernia to Sint-Andries | 844.97 mi (1,359.85 km) |
| Isernia to Sint-Genesius-Rode | 787.87 mi (1,267.96 km) |
