| Humacao to Smolyan | 5,420.00 mi (8,722.64 km) |
| Humacao to Sofia | 5,333.68 mi (8,583.73 km) |
| Humacao to Sopot | 5,404.63 mi (8,697.92 km) |
| Humacao to Sozopol | 5,553.92 mi (8,938.17 km) |
| Humacao to Sredets | 5,530.60 mi (8,900.65 km) |
| Humacao to Stamboliyski | 5,402.48 mi (8,694.45 km) |
| Humacao to Stara Zagora | 5,452.73 mi (8,775.31 km) |
| Humacao to Svilengrad | 5,491.74 mi (8,838.10 km) |
| Humacao to Svishtov | 5,417.81 mi (8,719.12 km) |
| Humacao to Targovishte | 5,484.07 mi (8,825.75 km) |
| Humacao to Teteven | 5,376.45 mi (8,652.56 km) |
| Humacao to Troyan | 5,399.13 mi (8,689.05 km) |
| Humacao to Tryavna | 5,437.87 mi (8,751.40 km) |
| Humacao to Tutrakan | 5,471.44 mi (8,805.43 km) |
| Humacao to Varna | 5,549.38 mi (8,930.87 km) |
