| Caldas de Montbuy to Smolyan | 1,160.73 mi (1,868.02 km) |
| Caldas de Montbuy to Sofia | 1,083.43 mi (1,743.62 km) |
| Caldas de Montbuy to Sopot | 1,155.64 mi (1,859.82 km) |
| Caldas de Montbuy to Sozopol | 1,306.67 mi (2,102.88 km) |
| Caldas de Montbuy to Sredets | 1,281.81 mi (2,062.87 km) |
| Caldas de Montbuy to Stamboliyski | 1,147.74 mi (1,847.11 km) |
| Caldas de Montbuy to Stara Zagora | 1,202.54 mi (1,935.30 km) |
| Caldas de Montbuy to Svilengrad | 1,235.76 mi (1,988.77 km) |
| Caldas de Montbuy to Svishtov | 1,182.62 mi (1,903.25 km) |
| Caldas de Montbuy to Targovishte | 1,245.48 mi (2,004.40 km) |
| Caldas de Montbuy to Teteven | 1,130.01 mi (1,818.58 km) |
| Caldas de Montbuy to Troyan | 1,152.88 mi (1,855.39 km) |
| Caldas de Montbuy to Tryavna | 1,192.54 mi (1,919.20 km) |
| Caldas de Montbuy to Tutrakan | 1,245.18 mi (2,003.92 km) |
| Caldas de Montbuy to Varna | 1,312.61 mi (2,112.44 km) |
