| South Portland to Sarkisla | 5,108.25 mi (8,220.94 km) |
| South Portland to Saruhanli | 4,783.49 mi (7,698.28 km) |
| South Portland to Sason | 5,345.31 mi (8,602.45 km) |
| South Portland to Savastepe | 4,758.38 mi (7,657.87 km) |
| South Portland to Savsat | 5,237.39 mi (8,428.76 km) |
| South Portland to Savur | 5,368.43 mi (8,639.66 km) |
| South Portland to Sefaatli | 5,037.16 mi (8,106.53 km) |
| South Portland to Seferhisar | 4,776.71 mi (7,687.38 km) |
| South Portland to Selcuk | 4,810.05 mi (7,741.03 km) |
| South Portland to Selcuklu | 5,023.40 mi (8,084.38 km) |
| South Portland to Selendi | 4,836.61 mi (7,783.78 km) |
| South Portland to Selim | 5,291.70 mi (8,516.17 km) |
| South Portland to Semdinli | 5,517.27 mi (8,879.18 km) |
| South Portland to Senirkent | 4,934.20 mi (7,940.82 km) |
| South Portland to Senkaya | 5,270.91 mi (8,482.71 km) |
