| Santarem to Smolyan | 1,752.97 mi (2,821.13 km) |
| Santarem to Sofia | 1,677.19 mi (2,699.17 km) |
| Santarem to Sopot | 1,749.40 mi (2,815.39 km) |
| Santarem to Sozopol | 1,900.40 mi (3,058.40 km) |
| Santarem to Sredets | 1,875.47 mi (3,018.27 km) |
| Santarem to Stamboliyski | 1,740.95 mi (2,801.78 km) |
| Santarem to Stara Zagora | 1,796.18 mi (2,890.66 km) |
| Santarem to Svilengrad | 1,828.61 mi (2,942.86 km) |
| Santarem to Svishtov | 1,776.33 mi (2,858.72 km) |
| Santarem to Targovishte | 1,839.35 mi (2,960.15 km) |
| Santarem to Teteven | 1,723.89 mi (2,774.34 km) |
| Santarem to Troyan | 1,746.76 mi (2,811.13 km) |
| Santarem to Tryavna | 1,786.42 mi (2,874.96 km) |
| Santarem to Tutrakan | 1,838.40 mi (2,958.62 km) |
| Santarem to Varna | 1,906.47 mi (3,068.17 km) |
