| Bangor to Smolyan | 1,646.99 mi (2,650.57 km) |
| Bangor to Sofia | 1,543.03 mi (2,483.27 km) |
| Bangor to Sopot | 1,598.85 mi (2,573.10 km) |
| Bangor to Sozopol | 1,722.21 mi (2,771.62 km) |
| Bangor to Sredets | 1,706.02 mi (2,745.57 km) |
| Bangor to Stamboliyski | 1,614.71 mi (2,598.62 km) |
| Bangor to Stara Zagora | 1,642.98 mi (2,644.13 km) |
| Bangor to Svilengrad | 1,694.81 mi (2,727.54 km) |
| Bangor to Svishtov | 1,578.07 mi (2,539.66 km) |
| Bangor to Targovishte | 1,641.79 mi (2,642.21 km) |
| Bangor to Teteven | 1,568.29 mi (2,523.92 km) |
| Bangor to Troyan | 1,586.88 mi (2,553.84 km) |
| Bangor to Tryavna | 1,617.44 mi (2,603.02 km) |
| Bangor to Tutrakan | 1,608.09 mi (2,587.97 km) |
| Bangor to Varna | 1,694.85 mi (2,727.59 km) |
