| Seraing to Sofia | 1,002.03 mi (1,612.61 km) |
| Seraing to Sopot | 1,060.71 mi (1,707.05 km) |
| Seraing to Sozopol | 1,190.65 mi (1,916.17 km) |
| Seraing to Sredets | 1,172.78 mi (1,887.41 km) |
| Seraing to Stamboliyski | 1,074.33 mi (1,728.97 km) |
| Seraing to Stara Zagora | 1,106.14 mi (1,780.15 km) |
| Seraing to Svilengrad | 1,156.77 mi (1,861.64 km) |
| Seraing to Svishtov | 1,045.86 mi (1,683.15 km) |
| Seraing to Targovishte | 1,111.23 mi (1,788.36 km) |
| Seraing to Teteven | 1,030.05 mi (1,657.70 km) |
| Seraing to Troyan | 1,049.57 mi (1,689.12 km) |
| Seraing to Tryavna | 1,082.02 mi (1,741.35 km) |
| Seraing to Tutrakan | 1,082.29 mi (1,741.78 km) |
| Seraing to Varna | 1,168.14 mi (1,879.94 km) |
| Seraing to Veliki Preslav | 1,124.19 mi (1,809.21 km) |
