| Hidalgo to Smolyan | 6,508.45 mi (10,474.34 km) |
| Hidalgo to Sofia | 6,404.98 mi (10,307.82 km) |
| Hidalgo to Sopot | 6,462.06 mi (10,399.68 km) |
| Hidalgo to Sozopol | 6,584.37 mi (10,596.52 km) |
| Hidalgo to Sredets | 6,568.82 mi (10,571.50 km) |
| Hidalgo to Stamboliyski | 6,477.09 mi (10,423.87 km) |
| Hidalgo to Stara Zagora | 6,506.35 mi (10,470.97 km) |
| Hidalgo to Svilengrad | 6,558.08 mi (10,554.20 km) |
| Hidalgo to Svishtov | 6,440.77 mi (10,365.42 km) |
| Hidalgo to Targovishte | 6,503.74 mi (10,466.76 km) |
| Hidalgo to Teteven | 6,431.47 mi (10,350.45 km) |
| Hidalgo to Troyan | 6,450.21 mi (10,380.61 km) |
| Hidalgo to Tryavna | 6,480.76 mi (10,429.78 km) |
| Hidalgo to Tutrakan | 6,467.71 mi (10,408.78 km) |
| Hidalgo to Varna | 6,554.53 mi (10,548.49 km) |
