| Falls Church to Smolyan | 5,025.33 mi (8,087.49 km) |
| Falls Church to Sofia | 4,922.99 mi (7,922.79 km) |
| Falls Church to Sopot | 4,983.06 mi (8,019.46 km) |
| Falls Church to Sozopol | 5,111.79 mi (8,226.64 km) |
| Falls Church to Sredets | 5,094.65 mi (8,199.04 km) |
| Falls Church to Stamboliyski | 4,995.62 mi (8,039.68 km) |
| Falls Church to Stara Zagora | 5,028.63 mi (8,092.79 km) |
| Falls Church to Svilengrad | 5,079.07 mi (8,173.98 km) |
| Falls Church to Svishtov | 4,967.17 mi (7,993.89 km) |
| Falls Church to Targovishte | 5,031.74 mi (8,097.81 km) |
| Falls Church to Teteven | 4,952.39 mi (7,970.11 km) |
| Falls Church to Troyan | 4,972.05 mi (8,001.74 km) |
| Falls Church to Tryavna | 5,004.41 mi (8,053.82 km) |
| Falls Church to Tutrakan | 4,999.34 mi (8,045.67 km) |
| Falls Church to Varna | 5,086.01 mi (8,185.15 km) |
