| Sliven to Rybnik | 630.95 mi (1,015.42 km) |
| Sliven to Ryki | 651.71 mi (1,048.83 km) |
| Sliven to Rypin | 784.28 mi (1,262.17 km) |
| Sliven to Rzeszow | 548.02 mi (881.96 km) |
| Sliven to Sandomierz | 593.61 mi (955.33 km) |
| Sliven to Sanok | 513.58 mi (826.53 km) |
| Sliven to Sedziszow Malopolski | 555.63 mi (894.20 km) |
| Sliven to Sepolno Krajenskie | 846.25 mi (1,361.91 km) |
| Sliven to Sidlice | 878.63 mi (1,414.02 km) |
| Sliven to Siechnice | 720.81 mi (1,160.03 km) |
| Sliven to Siedlce | 681.80 mi (1,097.26 km) |
| Sliven to Siemianowice Slaskie | 629.72 mi (1,013.43 km) |
| Sliven to Siemiatycze | 692.21 mi (1,114.00 km) |
| Sliven to Sieradz | 710.86 mi (1,144.02 km) |
| Sliven to Sierpc | 768.92 mi (1,237.45 km) |
