| Oviedo to Smolyan | 1,552.81 mi (2,499.01 km) |
| Oviedo to Sofia | 1,466.72 mi (2,360.45 km) |
| Oviedo to Sopot | 1,537.98 mi (2,475.13 km) |
| Oviedo to Sozopol | 1,687.93 mi (2,716.46 km) |
| Oviedo to Sredets | 1,664.24 mi (2,678.33 km) |
| Oviedo to Stamboliyski | 1,535.18 mi (2,470.64 km) |
| Oviedo to Stara Zagora | 1,585.96 mi (2,552.36 km) |
| Oviedo to Svilengrad | 1,624.42 mi (2,614.25 km) |
| Oviedo to Svishtov | 1,554.57 mi (2,501.84 km) |
| Oviedo to Targovishte | 1,620.12 mi (2,607.33 km) |
| Oviedo to Teteven | 1,510.18 mi (2,430.41 km) |
| Oviedo to Troyan | 1,532.96 mi (2,467.05 km) |
| Oviedo to Tryavna | 1,572.00 mi (2,529.89 km) |
| Oviedo to Tutrakan | 1,611.56 mi (2,593.55 km) |
| Oviedo to Varna | 1,686.29 mi (2,713.83 km) |
