| Opmeer to Solofra | 942.35 mi (1,516.57 km) |
| Opmeer to Somma Lombardo | 513.35 mi (826.15 km) |
| Opmeer to Somma Vesuviana | 930.52 mi (1,497.52 km) |
| Opmeer to Sommacampagna | 570.32 mi (917.84 km) |
| Opmeer to Sona | 567.90 mi (913.94 km) |
| Opmeer to Sondrio | 502.16 mi (808.15 km) |
| Opmeer to Sora | 859.60 mi (1,383.39 km) |
| Opmeer to Sorbolo | 597.19 mi (961.09 km) |
| Opmeer to Soresina | 558.12 mi (898.21 km) |
| Opmeer to Sorisole | 525.59 mi (845.85 km) |
| Opmeer to Sorrento | 944.42 mi (1,519.90 km) |
| Opmeer to Sorso | 839.78 mi (1,351.50 km) |
| Opmeer to Sortino | 1,178.49 mi (1,896.59 km) |
| Opmeer to Soverato Marina | 1,115.48 mi (1,795.19 km) |
| Opmeer to Sovicille | 711.89 mi (1,145.68 km) |
