| Southborough to Samandag | 2,038.97 mi (3,281.41 km) |
| Southborough to Samsun | 1,831.51 mi (2,947.53 km) |
| Southborough to Sanliurfa | 2,108.44 mi (3,393.21 km) |
| Southborough to Saray | 1,469.04 mi (2,364.19 km) |
| Southborough to Saraykent | 1,860.53 mi (2,994.23 km) |
| Southborough to Saraykoy | 1,665.19 mi (2,679.86 km) |
| Southborough to Sarayonu | 1,791.67 mi (2,883.42 km) |
| Southborough to Sarigol | 1,641.42 mi (2,641.62 km) |
| Southborough to Sarikamis | 2,137.75 mi (3,440.38 km) |
| Southborough to Sarikaya | 1,863.17 mi (2,998.49 km) |
| Southborough to Sarioglan | 1,906.16 mi (3,067.67 km) |
| Southborough to Sariveliler | 1,872.21 mi (3,013.04 km) |
| Southborough to Sariyer | 1,527.65 mi (2,458.51 km) |
| Southborough to Sariz | 1,953.85 mi (3,144.42 km) |
| Southborough to Sarkikaraagac | 1,757.15 mi (2,827.86 km) |
