| Oissel to Smolyan | 1,256.44 mi (2,022.04 km) |
| Oissel to Sofia | 1,155.94 mi (1,860.31 km) |
| Oissel to Sopot | 1,219.70 mi (1,962.93 km) |
| Oissel to Sozopol | 1,357.74 mi (2,185.07 km) |
| Oissel to Sredets | 1,337.94 mi (2,153.20 km) |
| Oissel to Stamboliyski | 1,228.73 mi (1,977.45 km) |
| Oissel to Stara Zagora | 1,266.78 mi (2,038.68 km) |
| Oissel to Svilengrad | 1,314.80 mi (2,115.97 km) |
| Oissel to Svishtov | 1,213.81 mi (1,953.44 km) |
| Oissel to Targovishte | 1,280.36 mi (2,060.55 km) |
| Oissel to Teteven | 1,189.25 mi (1,913.92 km) |
| Oissel to Troyan | 1,210.15 mi (1,947.55 km) |
| Oissel to Tryavna | 1,245.18 mi (2,003.92 km) |
| Oissel to Tutrakan | 1,256.75 mi (2,022.55 km) |
| Oissel to Varna | 1,340.76 mi (2,157.74 km) |
