| Portlethen to Sinop | 1,932.14 mi (3,109.48 km) |
| Portlethen to Siran | 2,167.29 mi (3,487.91 km) |
| Portlethen to Sirnak | 2,424.37 mi (3,901.64 km) |
| Portlethen to Sirvan | 2,380.68 mi (3,831.34 km) |
| Portlethen to Sivas | 2,113.31 mi (3,401.04 km) |
| Portlethen to Sivasli | 1,926.15 mi (3,099.84 km) |
| Portlethen to Siverek | 2,298.91 mi (3,699.74 km) |
| Portlethen to Sivrice | 2,262.60 mi (3,641.30 km) |
| Portlethen to Sivrihisar | 1,936.65 mi (3,116.73 km) |
| Portlethen to Sogut | 1,860.27 mi (2,993.81 km) |
| Portlethen to Sogutlu | 1,824.34 mi (2,935.98 km) |
| Portlethen to Soke | 1,892.81 mi (3,046.19 km) |
| Portlethen to Solhan | 2,299.02 mi (3,699.91 km) |
| Portlethen to Soma | 1,819.40 mi (2,928.05 km) |
| Portlethen to Sorgun | 2,044.92 mi (3,290.99 km) |
