| Reston to Smolyan | 5,029.49 mi (8,094.18 km) |
| Reston to Sofia | 4,927.10 mi (7,929.40 km) |
| Reston to Sopot | 4,987.06 mi (8,025.90 km) |
| Reston to Sozopol | 5,115.60 mi (8,232.77 km) |
| Reston to Sredets | 5,098.50 mi (8,205.25 km) |
| Reston to Stamboliyski | 4,999.72 mi (8,046.26 km) |
| Reston to Stara Zagora | 5,032.59 mi (8,099.18 km) |
| Reston to Svilengrad | 5,083.09 mi (8,180.44 km) |
| Reston to Svishtov | 4,971.00 mi (8,000.05 km) |
| Reston to Targovishte | 5,035.53 mi (8,103.90 km) |
| Reston to Teteven | 4,956.40 mi (7,976.56 km) |
| Reston to Troyan | 4,976.02 mi (8,008.14 km) |
| Reston to Tryavna | 5,008.33 mi (8,060.13 km) |
| Reston to Tutrakan | 5,003.01 mi (8,051.57 km) |
| Reston to Varna | 5,089.70 mi (8,191.08 km) |
