| Burtonsville to Smolyan | 5,005.19 mi (8,055.07 km) |
| Burtonsville to Sofia | 4,902.83 mi (7,890.34 km) |
| Burtonsville to Sopot | 4,962.85 mi (7,986.94 km) |
| Burtonsville to Sozopol | 5,091.52 mi (8,194.00 km) |
| Burtonsville to Sredets | 5,074.38 mi (8,166.43 km) |
| Burtonsville to Stamboliyski | 4,975.45 mi (8,007.22 km) |
| Burtonsville to Stara Zagora | 5,008.41 mi (8,060.25 km) |
| Burtonsville to Svilengrad | 5,058.87 mi (8,141.47 km) |
| Burtonsville to Svishtov | 4,946.90 mi (7,961.26 km) |
| Burtonsville to Targovishte | 5,011.46 mi (8,065.16 km) |
| Burtonsville to Teteven | 4,932.19 mi (7,937.59 km) |
| Burtonsville to Troyan | 4,951.83 mi (7,969.20 km) |
| Burtonsville to Tryavna | 4,984.18 mi (8,021.26 km) |
| Burtonsville to Tutrakan | 4,979.02 mi (8,012.96 km) |
| Burtonsville to Varna | 5,065.70 mi (8,152.45 km) |
