| Beltsville to Smolyan | 5,008.01 mi (8,059.61 km) |
| Beltsville to Sofia | 4,905.67 mi (7,894.91 km) |
| Beltsville to Sopot | 4,965.74 mi (7,991.59 km) |
| Beltsville to Sozopol | 5,094.50 mi (8,198.81 km) |
| Beltsville to Sredets | 5,077.35 mi (8,171.20 km) |
| Beltsville to Stamboliyski | 4,978.30 mi (8,011.80 km) |
| Beltsville to Stara Zagora | 5,011.32 mi (8,064.93 km) |
| Beltsville to Svilengrad | 5,061.76 mi (8,146.11 km) |
| Beltsville to Svishtov | 4,949.87 mi (7,966.05 km) |
| Beltsville to Targovishte | 5,014.45 mi (8,069.98 km) |
| Beltsville to Teteven | 4,935.08 mi (7,942.24 km) |
| Beltsville to Troyan | 4,954.74 mi (7,973.88 km) |
| Beltsville to Tryavna | 4,987.11 mi (8,025.97 km) |
| Beltsville to Tutrakan | 4,982.07 mi (8,017.87 km) |
| Beltsville to Varna | 5,068.74 mi (8,157.35 km) |
