| Niederkassel to Sremska Kamenica | 705.44 mi (1,135.30 km) |
| Niederkassel to Sremska Mitrovica | 707.59 mi (1,138.75 km) |
| Niederkassel to Sremski Karlovci | 709.94 mi (1,142.53 km) |
| Niederkassel to Stara Pazova | 728.13 mi (1,171.81 km) |
| Niederkassel to Subotica | 662.98 mi (1,066.96 km) |
| Niederkassel to Surcin | 740.49 mi (1,191.70 km) |
| Niederkassel to Surdulica | 907.05 mi (1,459.76 km) |
| Niederkassel to Svilajnac | 800.96 mi (1,289.03 km) |
| Niederkassel to Svrljig | 871.60 mi (1,402.70 km) |
| Niederkassel to Temerin | 698.93 mi (1,124.82 km) |
| Niederkassel to Titel | 723.91 mi (1,165.03 km) |
| Niederkassel to Topola | 779.52 mi (1,254.51 km) |
| Niederkassel to Trgoviste | 920.79 mi (1,481.88 km) |
| Niederkassel to Trstenik | 820.42 mi (1,320.34 km) |
| Niederkassel to Tutin | 826.27 mi (1,329.75 km) |
