| Southborough to Srbobran | 973.15 mi (1,566.14 km) |
| Southborough to Sremska Kamenica | 986.63 mi (1,587.83 km) |
| Southborough to Sremska Mitrovica | 986.46 mi (1,587.56 km) |
| Southborough to Sremski Karlovci | 991.28 mi (1,595.31 km) |
| Southborough to Stara Pazova | 1,008.85 mi (1,623.59 km) |
| Southborough to Subotica | 948.86 mi (1,527.05 km) |
| Southborough to Surcin | 1,020.45 mi (1,642.26 km) |
| Southborough to Surdulica | 1,180.90 mi (1,900.47 km) |
| Southborough to Svilajnac | 1,080.32 mi (1,738.60 km) |
| Southborough to Svrljig | 1,149.31 mi (1,849.64 km) |
| Southborough to Temerin | 981.44 mi (1,579.47 km) |
| Southborough to Titel | 1,006.34 mi (1,619.55 km) |
| Southborough to Topola | 1,057.41 mi (1,701.73 km) |
| Southborough to Trgoviste | 1,192.40 mi (1,918.98 km) |
| Southborough to Trstenik | 1,095.55 mi (1,763.11 km) |
