| Geilenkirchen to Serik | 1,563.82 mi (2,516.72 km) |
| Geilenkirchen to Serinhisar | 1,461.22 mi (2,351.61 km) |
| Geilenkirchen to Serinyol | 1,790.81 mi (2,882.02 km) |
| Geilenkirchen to Seydisehir | 1,567.99 mi (2,523.44 km) |
| Geilenkirchen to Seyhan | 1,726.63 mi (2,778.75 km) |
| Geilenkirchen to Seyitgazi | 1,426.20 mi (2,295.24 km) |
| Geilenkirchen to Siirt | 1,957.52 mi (3,150.32 km) |
| Geilenkirchen to Sile | 1,305.12 mi (2,100.39 km) |
| Geilenkirchen to Silifke | 1,700.25 mi (2,736.28 km) |
| Geilenkirchen to Silivri | 1,255.08 mi (2,019.85 km) |
| Geilenkirchen to Silopi | 2,009.38 mi (3,233.79 km) |
| Geilenkirchen to Simav | 1,376.40 mi (2,215.10 km) |
| Geilenkirchen to Sinanpasa | 1,441.44 mi (2,319.77 km) |
| Geilenkirchen to Sindirgi | 1,337.84 mi (2,153.05 km) |
| Geilenkirchen to Sinop | 1,499.96 mi (2,413.95 km) |
