| Darien to Smolyan | 5,313.09 mi (8,550.60 km) |
| Darien to Sofia | 5,208.95 mi (8,383.00 km) |
| Darien to Sopot | 5,262.84 mi (8,469.72 km) |
| Darien to Sozopol | 5,379.26 mi (8,657.08 km) |
| Darien to Sredets | 5,365.00 mi (8,634.14 km) |
| Darien to Stamboliyski | 5,280.18 mi (8,497.63 km) |
| Darien to Stara Zagora | 5,305.77 mi (8,538.81 km) |
| Darien to Svilengrad | 5,358.41 mi (8,623.52 km) |
| Darien to Svishtov | 5,237.06 mi (8,428.23 km) |
| Darien to Targovishte | 5,298.54 mi (8,527.18 km) |
| Darien to Teteven | 5,232.46 mi (8,420.83 km) |
| Darien to Troyan | 5,250.28 mi (8,449.50 km) |
| Darien to Tryavna | 5,279.11 mi (8,495.90 km) |
| Darien to Tutrakan | 5,260.13 mi (8,465.36 km) |
| Darien to Varna | 5,346.69 mi (8,604.67 km) |
