| Smolyan to Rybnik | 657.15 mi (1,057.59 km) |
| Smolyan to Ryki | 706.56 mi (1,137.10 km) |
| Smolyan to Rypin | 830.08 mi (1,335.89 km) |
| Smolyan to Rzeszow | 598.04 mi (962.45 km) |
| Smolyan to Sandomierz | 644.28 mi (1,036.87 km) |
| Smolyan to Sanok | 563.31 mi (906.57 km) |
| Smolyan to Sedziszow Malopolski | 603.55 mi (971.32 km) |
| Smolyan to Sepolno Krajenskie | 884.47 mi (1,423.41 km) |
| Smolyan to Sidlice | 924.85 mi (1,488.40 km) |
| Smolyan to Siechnice | 745.00 mi (1,198.96 km) |
| Smolyan to Siedlce | 739.96 mi (1,190.84 km) |
| Smolyan to Siemianowice Slaskie | 659.91 mi (1,062.02 km) |
| Smolyan to Siemiatycze | 754.16 mi (1,213.70 km) |
| Smolyan to Sieradz | 746.91 mi (1,202.03 km) |
| Smolyan to Sierpc | 815.17 mi (1,311.89 km) |
