| Heerlen to Solofra | 813.67 mi (1,309.48 km) |
| Heerlen to Somma Lombardo | 380.31 mi (612.05 km) |
| Heerlen to Somma Vesuviana | 801.16 mi (1,289.34 km) |
| Heerlen to Sommacampagna | 440.09 mi (708.26 km) |
| Heerlen to Sona | 437.69 mi (704.39 km) |
| Heerlen to Sondrio | 370.95 mi (596.99 km) |
| Heerlen to Sora | 729.79 mi (1,174.48 km) |
| Heerlen to Sorbolo | 465.44 mi (749.05 km) |
| Heerlen to Soresina | 425.89 mi (685.40 km) |
| Heerlen to Sorisole | 393.45 mi (633.20 km) |
| Heerlen to Sorrento | 814.69 mi (1,311.12 km) |
| Heerlen to Sorso | 707.78 mi (1,139.07 km) |
| Heerlen to Sortino | 1,047.11 mi (1,685.16 km) |
| Heerlen to Soverato Marina | 987.26 mi (1,588.83 km) |
| Heerlen to Sovicille | 579.94 mi (933.32 km) |
