| Gladbeck to Serik | 1,552.82 mi (2,499.02 km) |
| Gladbeck to Serinhisar | 1,451.83 mi (2,336.49 km) |
| Gladbeck to Serinyol | 1,773.96 mi (2,854.92 km) |
| Gladbeck to Seydisehir | 1,555.08 mi (2,502.66 km) |
| Gladbeck to Seyhan | 1,709.89 mi (2,751.80 km) |
| Gladbeck to Seyitgazi | 1,411.22 mi (2,271.14 km) |
| Gladbeck to Siirt | 1,932.34 mi (3,109.80 km) |
| Gladbeck to Sile | 1,288.10 mi (2,072.99 km) |
| Gladbeck to Silifke | 1,686.22 mi (2,713.72 km) |
| Gladbeck to Silivri | 1,240.26 mi (1,996.01 km) |
| Gladbeck to Silopi | 1,984.65 mi (3,193.99 km) |
| Gladbeck to Simav | 1,364.64 mi (2,196.18 km) |
| Gladbeck to Sinanpasa | 1,428.43 mi (2,298.83 km) |
| Gladbeck to Sindirgi | 1,327.04 mi (2,135.66 km) |
| Gladbeck to Sinop | 1,474.62 mi (2,373.17 km) |
