| Romanshorn to Srbobran | 514.49 mi (827.99 km) |
| Romanshorn to Sremska Kamenica | 524.64 mi (844.33 km) |
| Romanshorn to Sremska Mitrovica | 521.13 mi (838.68 km) |
| Romanshorn to Sremski Karlovci | 529.42 mi (852.02 km) |
| Romanshorn to Stara Pazova | 545.64 mi (878.13 km) |
| Romanshorn to Subotica | 497.29 mi (800.31 km) |
| Romanshorn to Surcin | 555.92 mi (894.66 km) |
| Romanshorn to Surdulica | 708.07 mi (1,139.52 km) |
| Romanshorn to Svilajnac | 613.93 mi (988.02 km) |
| Romanshorn to Svrljig | 680.15 mi (1,094.60 km) |
| Romanshorn to Temerin | 521.79 mi (839.73 km) |
| Romanshorn to Titel | 545.91 mi (878.56 km) |
| Romanshorn to Topola | 589.62 mi (948.90 km) |
| Romanshorn to Trgoviste | 718.02 mi (1,155.54 km) |
| Romanshorn to Trstenik | 624.50 mi (1,005.03 km) |
