| Bethesda to Smolyan | 5,018.49 mi (8,076.48 km) |
| Bethesda to Sofia | 4,916.13 mi (7,911.75 km) |
| Bethesda to Sopot | 4,976.16 mi (8,008.36 km) |
| Bethesda to Sozopol | 5,104.83 mi (8,215.43 km) |
| Bethesda to Sredets | 5,087.70 mi (8,187.86 km) |
| Bethesda to Stamboliyski | 4,988.76 mi (8,028.63 km) |
| Bethesda to Stara Zagora | 5,021.72 mi (8,081.68 km) |
| Bethesda to Svilengrad | 5,072.18 mi (8,162.89 km) |
| Bethesda to Svishtov | 4,960.21 mi (7,982.69 km) |
| Bethesda to Targovishte | 5,024.77 mi (8,086.59 km) |
| Bethesda to Teteven | 4,945.50 mi (7,959.01 km) |
| Bethesda to Troyan | 4,965.14 mi (7,990.63 km) |
| Bethesda to Tryavna | 4,997.49 mi (8,042.68 km) |
| Bethesda to Tutrakan | 4,992.34 mi (8,034.39 km) |
| Bethesda to Varna | 5,079.01 mi (8,173.88 km) |
