| Hillcrest Heights to Smolyan | 5,018.73 mi (8,076.86 km) |
| Hillcrest Heights to Sofia | 4,916.44 mi (7,912.24 km) |
| Hillcrest Heights to Sopot | 4,976.61 mi (8,009.08 km) |
| Hillcrest Heights to Sozopol | 5,105.55 mi (8,216.59 km) |
| Hillcrest Heights to Sredets | 5,088.35 mi (8,188.91 km) |
| Hillcrest Heights to Stamboliyski | 4,989.08 mi (8,029.15 km) |
| Hillcrest Heights to Stara Zagora | 5,022.22 mi (8,082.48 km) |
| Hillcrest Heights to Svilengrad | 5,072.61 mi (8,163.58 km) |
| Hillcrest Heights to Svishtov | 4,960.91 mi (7,983.81 km) |
| Hillcrest Heights to Targovishte | 5,025.53 mi (8,087.81 km) |
| Hillcrest Heights to Teteven | 4,945.95 mi (7,959.73 km) |
| Hillcrest Heights to Troyan | 4,965.63 mi (7,991.41 km) |
| Hillcrest Heights to Tryavna | 4,998.06 mi (8,043.59 km) |
| Hillcrest Heights to Tutrakan | 4,993.25 mi (8,035.86 km) |
| Hillcrest Heights to Varna | 5,079.91 mi (8,175.32 km) |
