| Avranches to Smolyan | 1,353.30 mi (2,177.93 km) |
| Avranches to Sofia | 1,254.54 mi (2,018.99 km) |
| Avranches to Sopot | 1,320.07 mi (2,124.45 km) |
| Avranches to Sozopol | 1,460.91 mi (2,351.10 km) |
| Avranches to Sredets | 1,440.37 mi (2,318.05 km) |
| Avranches to Stamboliyski | 1,327.14 mi (2,135.83 km) |
| Avranches to Stara Zagora | 1,367.61 mi (2,200.96 km) |
| Avranches to Svilengrad | 1,414.34 mi (2,276.16 km) |
| Avranches to Svishtov | 1,317.85 mi (2,120.88 km) |
| Avranches to Targovishte | 1,384.64 mi (2,228.36 km) |
| Avranches to Teteven | 1,289.85 mi (2,075.82 km) |
| Avranches to Troyan | 1,311.22 mi (2,110.20 km) |
| Avranches to Tryavna | 1,347.14 mi (2,168.02 km) |
| Avranches to Tutrakan | 1,363.25 mi (2,193.94 km) |
| Avranches to Varna | 1,446.25 mi (2,327.51 km) |
