| Rianxo to Smolyan | 1,708.10 mi (2,748.92 km) |
| Rianxo to Sofia | 1,623.00 mi (2,611.97 km) |
| Rianxo to Sopot | 1,694.43 mi (2,726.91 km) |
| Rianxo to Sozopol | 1,844.60 mi (2,968.60 km) |
| Rianxo to Sredets | 1,820.78 mi (2,930.26 km) |
| Rianxo to Stamboliyski | 1,691.07 mi (2,721.52 km) |
| Rianxo to Stara Zagora | 1,742.35 mi (2,804.04 km) |
| Rianxo to Svilengrad | 1,780.24 mi (2,865.02 km) |
| Rianxo to Svishtov | 1,711.84 mi (2,754.94 km) |
| Rianxo to Targovishte | 1,777.27 mi (2,860.23 km) |
| Rianxo to Teteven | 1,666.81 mi (2,682.47 km) |
| Rianxo to Troyan | 1,689.61 mi (2,719.17 km) |
| Rianxo to Tryavna | 1,728.74 mi (2,782.14 km) |
| Rianxo to Tutrakan | 1,769.15 mi (2,847.17 km) |
| Rianxo to Varna | 1,843.54 mi (2,966.89 km) |
