| Owings Mills to Smolyan | 4,986.23 mi (8,024.57 km) |
| Owings Mills to Sofia | 4,883.81 mi (7,859.74 km) |
| Owings Mills to Sopot | 4,943.73 mi (7,956.16 km) |
| Owings Mills to Sozopol | 5,072.17 mi (8,162.87 km) |
| Owings Mills to Sredets | 5,055.09 mi (8,135.39 km) |
| Owings Mills to Stamboliyski | 4,956.42 mi (7,976.59 km) |
| Owings Mills to Stara Zagora | 4,989.24 mi (8,029.40 km) |
| Owings Mills to Svilengrad | 5,039.75 mi (8,110.70 km) |
| Owings Mills to Svishtov | 4,927.58 mi (7,930.17 km) |
| Owings Mills to Targovishte | 4,992.09 mi (8,033.99 km) |
| Owings Mills to Teteven | 4,913.06 mi (7,906.81 km) |
| Owings Mills to Troyan | 4,932.67 mi (7,938.37 km) |
| Owings Mills to Tryavna | 4,964.95 mi (7,990.32 km) |
| Owings Mills to Tutrakan | 4,959.53 mi (7,981.60 km) |
| Owings Mills to Varna | 5,046.22 mi (8,121.11 km) |
