| Opwijk to Somma Lombardo | 419.71 mi (675.46 km) |
| Opwijk to Somma Vesuviana | 852.26 mi (1,371.58 km) |
| Opwijk to Sommacampagna | 491.78 mi (791.44 km) |
| Opwijk to Sona | 489.44 mi (787.68 km) |
| Opwijk to Sondrio | 420.99 mi (677.51 km) |
| Opwijk to Sora | 780.26 mi (1,255.70 km) |
| Opwijk to Sorbolo | 512.46 mi (824.72 km) |
| Opwijk to Soresina | 471.38 mi (758.61 km) |
| Opwijk to Sorisole | 439.84 mi (707.85 km) |
| Opwijk to Sorrento | 864.99 mi (1,392.06 km) |
| Opwijk to Sorso | 733.32 mi (1,180.17 km) |
| Opwijk to Sortino | 1,092.48 mi (1,758.17 km) |
| Opwijk to Soverato Marina | 1,039.84 mi (1,673.46 km) |
| Opwijk to Sovicille | 625.19 mi (1,006.14 km) |
| Opwijk to Spello | 680.20 mi (1,094.67 km) |
