| Muscle Shoals to Smolyan | 5,643.63 mi (9,082.55 km) |
| Muscle Shoals to Sofia | 5,540.44 mi (8,916.48 km) |
| Muscle Shoals to Sopot | 5,598.46 mi (9,009.85 km) |
| Muscle Shoals to Sozopol | 5,722.94 mi (9,210.19 km) |
| Muscle Shoals to Sredets | 5,706.85 mi (9,184.28 km) |
| Muscle Shoals to Stamboliyski | 5,612.74 mi (9,032.84 km) |
| Muscle Shoals to Stara Zagora | 5,643.18 mi (9,081.82 km) |
| Muscle Shoals to Svilengrad | 5,694.53 mi (9,164.46 km) |
| Muscle Shoals to Svishtov | 5,578.90 mi (8,978.37 km) |
| Muscle Shoals to Targovishte | 5,642.45 mi (9,080.65 km) |
| Muscle Shoals to Teteven | 5,567.83 mi (8,960.55 km) |
| Muscle Shoals to Troyan | 5,586.86 mi (8,991.19 km) |
| Muscle Shoals to Tryavna | 5,618.01 mi (9,041.32 km) |
| Muscle Shoals to Tutrakan | 5,607.65 mi (9,024.65 km) |
| Muscle Shoals to Varna | 5,694.49 mi (9,164.40 km) |
