| Baltimore to Smolyan | 4,983.64 mi (8,020.39 km) |
| Baltimore to Sofia | 4,881.28 mi (7,855.66 km) |
| Baltimore to Sopot | 4,941.32 mi (7,952.29 km) |
| Baltimore to Sozopol | 5,070.02 mi (8,159.40 km) |
| Baltimore to Sredets | 5,052.88 mi (8,131.82 km) |
| Baltimore to Stamboliyski | 4,953.91 mi (7,972.55 km) |
| Baltimore to Stara Zagora | 4,986.88 mi (8,025.61 km) |
| Baltimore to Svilengrad | 5,037.34 mi (8,106.81 km) |
| Baltimore to Svishtov | 4,925.40 mi (7,926.66 km) |
| Baltimore to Targovishte | 4,989.96 mi (8,030.57 km) |
| Baltimore to Teteven | 4,910.66 mi (7,902.94 km) |
| Baltimore to Troyan | 4,930.30 mi (7,934.56 km) |
| Baltimore to Tryavna | 4,962.66 mi (7,986.62 km) |
| Baltimore to Tutrakan | 4,957.55 mi (7,978.40 km) |
| Baltimore to Varna | 5,044.22 mi (8,117.89 km) |
