| Hillcrest to Smolyan | 6,642.67 mi (10,690.34 km) |
| Hillcrest to Sofia | 6,540.94 mi (10,526.62 km) |
| Hillcrest to Sopot | 6,579.47 mi (10,588.64 km) |
| Hillcrest to Sozopol | 6,663.99 mi (10,724.66 km) |
| Hillcrest to Sredets | 6,656.51 mi (10,712.63 km) |
| Hillcrest to Stamboliyski | 6,605.30 mi (10,630.20 km) |
| Hillcrest to Stara Zagora | 6,614.58 mi (10,645.14 km) |
| Hillcrest to Svilengrad | 6,668.49 mi (10,731.90 km) |
| Hillcrest to Svishtov | 6,535.46 mi (10,517.81 km) |
| Hillcrest to Targovishte | 6,586.92 mi (10,600.62 km) |
| Hillcrest to Teteven | 6,551.44 mi (10,543.52 km) |
| Hillcrest to Troyan | 6,564.55 mi (10,564.63 km) |
| Hillcrest to Tryavna | 6,584.60 mi (10,596.89 km) |
| Hillcrest to Tutrakan | 6,538.70 mi (10,523.02 km) |
| Hillcrest to Varna | 6,619.55 mi (10,653.14 km) |
