| Heerlen to Serik | 1,566.33 mi (2,520.76 km) |
| Heerlen to Serinhisar | 1,463.51 mi (2,355.30 km) |
| Heerlen to Serinyol | 1,794.13 mi (2,887.37 km) |
| Heerlen to Seydisehir | 1,570.78 mi (2,527.92 km) |
| Heerlen to Seyhan | 1,729.94 mi (2,784.08 km) |
| Heerlen to Seyitgazi | 1,429.29 mi (2,300.21 km) |
| Heerlen to Siirt | 1,961.99 mi (3,157.53 km) |
| Heerlen to Sile | 1,308.51 mi (2,105.85 km) |
| Heerlen to Silifke | 1,703.17 mi (2,740.99 km) |
| Heerlen to Silivri | 1,258.17 mi (2,024.82 km) |
| Heerlen to Silopi | 2,013.79 mi (3,240.89 km) |
| Heerlen to Simav | 1,379.04 mi (2,219.35 km) |
| Heerlen to Sinanpasa | 1,444.25 mi (2,324.29 km) |
| Heerlen to Sindirgi | 1,340.35 mi (2,157.09 km) |
| Heerlen to Sinop | 1,504.49 mi (2,421.24 km) |
