| Highland to Smolyan | 6,674.29 mi (10,741.23 km) |
| Highland to Sofia | 6,571.85 mi (10,576.37 km) |
| Highland to Sopot | 6,612.38 mi (10,641.60 km) |
| Highland to Sozopol | 6,700.98 mi (10,784.19 km) |
| Highland to Sredets | 6,692.69 mi (10,770.85 km) |
| Highland to Stamboliyski | 6,637.30 mi (10,681.70 km) |
| Highland to Stara Zagora | 6,648.57 mi (10,699.83 km) |
| Highland to Svilengrad | 6,702.55 mi (10,786.71 km) |
| Highland to Svishtov | 6,570.33 mi (10,573.92 km) |
| Highland to Targovishte | 6,623.16 mi (10,658.95 km) |
| Highland to Teteven | 6,583.95 mi (10,595.85 km) |
| Highland to Troyan | 6,597.68 mi (10,617.94 km) |
| Highland to Tryavna | 6,618.85 mi (10,652.01 km) |
| Highland to Tutrakan | 6,575.85 mi (10,582.81 km) |
| Highland to Varna | 6,657.70 mi (10,714.53 km) |
