| Federal Heights to Smolyan | 5,986.39 mi (9,634.16 km) |
| Federal Heights to Sofia | 5,882.58 mi (9,467.09 km) |
| Federal Heights to Sopot | 5,928.48 mi (9,540.96 km) |
| Federal Heights to Sozopol | 6,028.46 mi (9,701.88 km) |
| Federal Heights to Sredets | 6,017.79 mi (9,684.71 km) |
| Federal Heights to Stamboliyski | 5,950.69 mi (9,576.70 km) |
| Federal Heights to Stara Zagora | 5,967.51 mi (9,603.78 km) |
| Federal Heights to Svilengrad | 6,021.38 mi (9,690.47 km) |
| Federal Heights to Svishtov | 5,892.33 mi (9,482.79 km) |
| Federal Heights to Targovishte | 5,948.91 mi (9,573.84 km) |
| Federal Heights to Teteven | 5,899.10 mi (9,493.68 km) |
| Federal Heights to Troyan | 5,914.48 mi (9,518.44 km) |
| Federal Heights to Tryavna | 5,938.74 mi (9,557.48 km) |
| Federal Heights to Tutrakan | 5,904.66 mi (9,502.64 km) |
| Federal Heights to Varna | 5,989.00 mi (9,638.37 km) |
