| Forest Lake to Smolyan | 5,312.03 mi (8,548.89 km) |
| Forest Lake to Sofia | 5,207.80 mi (8,381.14 km) |
| Forest Lake to Sopot | 5,257.12 mi (8,460.51 km) |
| Forest Lake to Sozopol | 5,364.41 mi (8,633.18 km) |
| Forest Lake to Sredets | 5,352.15 mi (8,613.45 km) |
| Forest Lake to Stamboliyski | 5,277.38 mi (8,493.12 km) |
| Forest Lake to Stara Zagora | 5,297.90 mi (8,526.14 km) |
| Forest Lake to Svilengrad | 5,351.41 mi (8,612.26 km) |
| Forest Lake to Svishtov | 5,225.24 mi (8,409.21 km) |
| Forest Lake to Targovishte | 5,284.10 mi (8,503.94 km) |
| Forest Lake to Teteven | 5,227.24 mi (8,412.42 km) |
| Forest Lake to Troyan | 5,243.68 mi (8,438.89 km) |
| Forest Lake to Tryavna | 5,269.93 mi (8,481.14 km) |
| Forest Lake to Tutrakan | 5,242.25 mi (8,436.59 km) |
| Forest Lake to Varna | 5,327.84 mi (8,574.33 km) |
