| Groveton to Smolyan | 5,027.66 mi (8,091.24 km) |
| Groveton to Sofia | 4,925.37 mi (7,926.61 km) |
| Groveton to Sopot | 4,985.53 mi (8,023.44 km) |
| Groveton to Sozopol | 5,114.46 mi (8,230.93 km) |
| Groveton to Sredets | 5,097.27 mi (8,203.26 km) |
| Groveton to Stamboliyski | 4,998.01 mi (8,043.52 km) |
| Groveton to Stara Zagora | 5,031.14 mi (8,096.84 km) |
| Groveton to Svilengrad | 5,081.54 mi (8,177.95 km) |
| Groveton to Svishtov | 4,969.82 mi (7,998.15 km) |
| Groveton to Targovishte | 5,034.44 mi (8,102.14 km) |
| Groveton to Teteven | 4,954.87 mi (7,974.10 km) |
| Groveton to Troyan | 4,974.55 mi (8,005.77 km) |
| Groveton to Tryavna | 5,006.97 mi (8,057.95 km) |
| Groveton to Tutrakan | 5,002.15 mi (8,050.18 km) |
| Groveton to Varna | 5,088.80 mi (8,189.64 km) |
