| Sulejowek to Smolyan | 753.85 mi (1,213.21 km) |
| Sulejowek to Sofia | 666.28 mi (1,072.28 km) |
| Sulejowek to Sopot | 682.23 mi (1,097.94 km) |
| Sulejowek to Sozopol | 741.88 mi (1,193.95 km) |
| Sulejowek to Sredets | 737.15 mi (1,186.33 km) |
| Sulejowek to Stamboliyski | 714.91 mi (1,150.53 km) |
| Sulejowek to Stara Zagora | 707.74 mi (1,139.00 km) |
| Sulejowek to Svilengrad | 759.68 mi (1,222.59 km) |
| Sulejowek to Svishtov | 624.91 mi (1,005.70 km) |
| Sulejowek to Targovishte | 668.05 mi (1,075.12 km) |
| Sulejowek to Teteven | 659.18 mi (1,060.85 km) |
| Sulejowek to Troyan | 666.13 mi (1,072.03 km) |
| Sulejowek to Tryavna | 676.83 mi (1,089.25 km) |
| Sulejowek to Tutrakan | 616.89 mi (992.79 km) |
| Sulejowek to Varna | 695.13 mi (1,118.71 km) |
