| Port Orange to Smolyan | 5,638.84 mi (9,074.83 km) |
| Port Orange to Sofia | 5,538.79 mi (8,913.82 km) |
| Port Orange to Sopot | 5,602.27 mi (9,015.98 km) |
| Port Orange to Sozopol | 5,737.48 mi (9,233.59 km) |
| Port Orange to Sredets | 5,718.71 mi (9,203.37 km) |
| Port Orange to Stamboliyski | 5,611.57 mi (9,030.96 km) |
| Port Orange to Stara Zagora | 5,649.06 mi (9,091.29 km) |
| Port Orange to Svilengrad | 5,697.57 mi (9,169.36 km) |
| Port Orange to Svishtov | 5,592.80 mi (9,000.74 km) |
| Port Orange to Targovishte | 5,658.64 mi (9,106.69 km) |
| Port Orange to Teteven | 5,571.74 mi (8,966.85 km) |
| Port Orange to Troyan | 5,592.37 mi (9,000.05 km) |
| Port Orange to Tryavna | 5,626.66 mi (9,055.23 km) |
| Port Orange to Tutrakan | 5,630.18 mi (9,060.91 km) |
| Port Orange to Varna | 5,716.09 mi (9,199.15 km) |
