| Seclin to Siran | 1,869.84 mi (3,009.22 km) |
| Seclin to Sirnak | 2,123.47 mi (3,417.39 km) |
| Seclin to Sirvan | 2,081.92 mi (3,350.53 km) |
| Seclin to Sivas | 1,796.09 mi (2,890.53 km) |
| Seclin to Sivasli | 1,542.41 mi (2,482.28 km) |
| Seclin to Siverek | 1,978.28 mi (3,183.74 km) |
| Seclin to Sivrice | 1,948.57 mi (3,135.92 km) |
| Seclin to Sivrihisar | 1,575.93 mi (2,536.22 km) |
| Seclin to Sogut | 1,495.03 mi (2,406.02 km) |
| Seclin to Sogutlu | 1,470.87 mi (2,367.14 km) |
| Seclin to Soke | 1,486.19 mi (2,391.80 km) |
| Seclin to Solhan | 2,002.36 mi (3,222.49 km) |
| Seclin to Soma | 1,426.46 mi (2,295.66 km) |
| Seclin to Sorgun | 1,715.10 mi (2,760.19 km) |
| Seclin to Suhut | 1,575.41 mi (2,535.37 km) |
