| Niederkassel to Raca | 791.99 mi (1,274.58 km) |
| Niederkassel to Raska | 821.93 mi (1,322.77 km) |
| Niederkassel to Razanj | 838.86 mi (1,350.02 km) |
| Niederkassel to Rekovac | 814.11 mi (1,310.19 km) |
| Niederkassel to Ruma | 714.66 mi (1,150.14 km) |
| Niederkassel to Sabac | 720.10 mi (1,158.90 km) |
| Niederkassel to Secanj | 735.76 mi (1,184.08 km) |
| Niederkassel to Senta | 686.39 mi (1,104.63 km) |
| Niederkassel to Sid | 686.84 mi (1,105.37 km) |
| Niederkassel to Sjenica | 801.01 mi (1,289.10 km) |
| Niederkassel to Smederevo | 771.14 mi (1,241.03 km) |
| Niederkassel to Smederevska Palanka | 785.22 mi (1,263.68 km) |
| Niederkassel to Sokobanja | 851.58 mi (1,370.48 km) |
| Niederkassel to Sombor | 654.08 mi (1,052.64 km) |
| Niederkassel to Srbobran | 690.23 mi (1,110.82 km) |
