| Roudnice nad Labem to Siran | 1,390.21 mi (2,237.32 km) |
| Roudnice nad Labem to Sirnak | 1,646.23 mi (2,649.35 km) |
| Roudnice nad Labem to Sirvan | 1,603.72 mi (2,580.93 km) |
| Roudnice nad Labem to Sivas | 1,324.27 mi (2,131.21 km) |
| Roudnice nad Labem to Sivasli | 1,117.78 mi (1,798.89 km) |
| Roudnice nad Labem to Siverek | 1,508.97 mi (2,428.46 km) |
| Roudnice nad Labem to Sivrice | 1,476.02 mi (2,375.43 km) |
| Roudnice nad Labem to Sivrihisar | 1,130.31 mi (1,819.05 km) |
| Roudnice nad Labem to Sogut | 1,052.91 mi (1,694.50 km) |
| Roudnice nad Labem to Sogutlu | 1,019.19 mi (1,640.23 km) |
| Roudnice nad Labem to Soke | 1,088.65 mi (1,752.01 km) |
| Roudnice nad Labem to Solhan | 1,523.05 mi (2,451.12 km) |
| Roudnice nad Labem to Soma | 1,012.17 mi (1,628.93 km) |
| Roudnice nad Labem to Sorgun | 1,249.32 mi (2,010.58 km) |
| Roudnice nad Labem to Suhut | 1,143.98 mi (1,841.06 km) |
