| Imperial to Smolyan | 6,708.26 mi (10,795.90 km) |
| Imperial to Sofia | 6,605.26 mi (10,630.13 km) |
| Imperial to Sopot | 6,647.63 mi (10,698.32 km) |
| Imperial to Sozopol | 6,739.96 mi (10,846.92 km) |
| Imperial to Sredets | 6,730.92 mi (10,832.37 km) |
| Imperial to Stamboliyski | 6,671.67 mi (10,737.01 km) |
| Imperial to Stara Zagora | 6,684.78 mi (10,758.11 km) |
| Imperial to Svilengrad | 6,738.78 mi (10,845.02 km) |
| Imperial to Svishtov | 6,607.45 mi (10,633.66 km) |
| Imperial to Targovishte | 6,661.52 mi (10,720.68 km) |
| Imperial to Teteven | 6,618.86 mi (10,652.02 km) |
| Imperial to Troyan | 6,633.15 mi (10,675.02 km) |
| Imperial to Tryavna | 6,655.34 mi (10,710.73 km) |
| Imperial to Tutrakan | 6,615.11 mi (10,645.99 km) |
| Imperial to Varna | 6,697.81 mi (10,779.08 km) |
