| Columbia Heights to Smolyan | 5,332.00 mi (8,581.03 km) |
| Columbia Heights to Sofia | 5,227.77 mi (8,413.28 km) |
| Columbia Heights to Sopot | 5,277.08 mi (8,492.64 km) |
| Columbia Heights to Sozopol | 5,384.33 mi (8,665.24 km) |
| Columbia Heights to Sredets | 5,372.08 mi (8,645.53 km) |
| Columbia Heights to Stamboliyski | 5,297.34 mi (8,525.25 km) |
| Columbia Heights to Stara Zagora | 5,317.85 mi (8,558.25 km) |
| Columbia Heights to Svilengrad | 5,371.36 mi (8,644.37 km) |
| Columbia Heights to Svishtov | 5,245.18 mi (8,441.30 km) |
| Columbia Heights to Targovishte | 5,304.03 mi (8,536.01 km) |
| Columbia Heights to Teteven | 5,247.20 mi (8,444.55 km) |
| Columbia Heights to Troyan | 5,263.64 mi (8,471.00 km) |
| Columbia Heights to Tryavna | 5,289.88 mi (8,513.24 km) |
| Columbia Heights to Tutrakan | 5,262.17 mi (8,468.64 km) |
| Columbia Heights to Varna | 5,347.75 mi (8,606.37 km) |
