| Gondomar to Smolyan | 1,712.80 mi (2,756.49 km) |
| Gondomar to Sofia | 1,631.77 mi (2,626.08 km) |
| Gondomar to Sopot | 1,703.73 mi (2,741.89 km) |
| Gondomar to Sozopol | 1,854.61 mi (2,984.71 km) |
| Gondomar to Sredets | 1,830.23 mi (2,945.47 km) |
| Gondomar to Stamboliyski | 1,698.03 mi (2,732.71 km) |
| Gondomar to Stara Zagora | 1,751.24 mi (2,818.34 km) |
| Gondomar to Svilengrad | 1,786.71 mi (2,875.43 km) |
| Gondomar to Svishtov | 1,725.58 mi (2,777.06 km) |
| Gondomar to Targovishte | 1,790.04 mi (2,880.79 km) |
| Gondomar to Teteven | 1,677.02 mi (2,698.90 km) |
| Gondomar to Troyan | 1,699.91 mi (2,735.73 km) |
| Gondomar to Tryavna | 1,739.37 mi (2,799.24 km) |
| Gondomar to Tutrakan | 1,785.23 mi (2,873.05 km) |
| Gondomar to Varna | 1,856.84 mi (2,988.30 km) |
