| South Portland to Samandag | 5,248.62 mi (8,446.84 km) |
| South Portland to Samsun | 5,013.27 mi (8,068.08 km) |
| South Portland to Sanliurfa | 5,306.96 mi (8,540.73 km) |
| South Portland to Saray | 4,678.75 mi (7,529.72 km) |
| South Portland to Saraykent | 5,057.56 mi (8,139.36 km) |
| South Portland to Saraykoy | 4,875.83 mi (7,846.89 km) |
| South Portland to Sarayonu | 5,002.07 mi (8,050.06 km) |
| South Portland to Sarigol | 4,852.31 mi (7,809.03 km) |
| South Portland to Sarikamis | 5,290.33 mi (8,513.97 km) |
| South Portland to Sarikaya | 5,061.84 mi (8,146.25 km) |
| South Portland to Sarioglan | 5,104.88 mi (8,215.51 km) |
| South Portland to Sariveliler | 5,083.90 mi (8,181.74 km) |
| South Portland to Sariyer | 4,736.25 mi (7,622.26 km) |
| South Portland to Sariz | 5,153.89 mi (8,294.39 km) |
| South Portland to Sarkikaraagac | 4,968.65 mi (7,996.27 km) |
