| Portage to Sinop | 5,548.52 mi (8,929.48 km) |
| Portage to Siran | 5,777.39 mi (9,297.81 km) |
| Portage to Sirnak | 6,032.41 mi (9,708.23 km) |
| Portage to Sirvan | 5,988.19 mi (9,637.06 km) |
| Portage to Sivas | 5,731.83 mi (9,224.49 km) |
| Portage to Sivasli | 5,540.44 mi (8,916.48 km) |
| Portage to Siverek | 5,917.06 mi (9,522.59 km) |
| Portage to Sivrice | 5,878.73 mi (9,460.91 km) |
| Portage to Sivrihisar | 5,558.29 mi (8,945.20 km) |
| Portage to Sogut | 5,480.70 mi (8,820.34 km) |
| Portage to Sogutlu | 5,446.74 mi (8,765.68 km) |
| Portage to Soke | 5,492.37 mi (8,839.12 km) |
| Portage to Solhan | 5,906.64 mi (9,505.81 km) |
| Portage to Soma | 5,428.33 mi (8,736.05 km) |
| Portage to Sorgun | 5,666.74 mi (9,119.74 km) |
