| Duarte to Smolyan | 6,691.95 mi (10,769.65 km) |
| Duarte to Sofia | 6,589.72 mi (10,605.13 km) |
| Duarte to Sopot | 6,629.62 mi (10,669.35 km) |
| Duarte to Sozopol | 6,716.91 mi (10,809.83 km) |
| Duarte to Sredets | 6,708.89 mi (10,796.91 km) |
| Duarte to Stamboliyski | 6,654.83 mi (10,709.92 km) |
| Duarte to Stara Zagora | 6,665.47 mi (10,727.03 km) |
| Duarte to Svilengrad | 6,719.43 mi (10,813.89 km) |
| Duarte to Svishtov | 6,586.93 mi (10,600.65 km) |
| Duarte to Targovishte | 6,639.33 mi (10,684.97 km) |
| Duarte to Teteven | 6,601.32 mi (10,623.79 km) |
| Duarte to Troyan | 6,614.85 mi (10,645.57 km) |
| Duarte to Tryavna | 6,635.66 mi (10,679.06 km) |
| Duarte to Tutrakan | 6,591.71 mi (10,608.34 km) |
| Duarte to Varna | 6,673.25 mi (10,739.55 km) |
