| Oak Grove to Smolyan | 6,096.89 mi (9,812.00 km) |
| Oak Grove to Sofia | 5,998.61 mi (9,653.84 km) |
| Oak Grove to Sopot | 6,029.65 mi (9,703.79 km) |
| Oak Grove to Sozopol | 6,099.23 mi (9,815.76 km) |
| Oak Grove to Sredets | 6,094.61 mi (9,808.32 km) |
| Oak Grove to Stamboliyski | 6,058.48 mi (9,750.18 km) |
| Oak Grove to Stara Zagora | 6,060.68 mi (9,753.72 km) |
| Oak Grove to Svilengrad | 6,113.86 mi (9,839.31 km) |
| Oak Grove to Svishtov | 5,979.13 mi (9,622.48 km) |
| Oak Grove to Targovishte | 6,025.37 mi (9,696.89 km) |
| Oak Grove to Teteven | 6,003.27 mi (9,661.34 km) |
| Oak Grove to Troyan | 6,014.10 mi (9,678.76 km) |
| Oak Grove to Tryavna | 6,030.03 mi (9,704.39 km) |
| Oak Grove to Tutrakan | 5,974.39 mi (9,614.85 km) |
| Oak Grove to Varna | 6,051.18 mi (9,738.44 km) |
