| Seaside to Smolyan | 6,634.00 mi (10,676.39 km) |
| Seaside to Sofia | 6,533.44 mi (10,514.55 km) |
| Seaside to Sopot | 6,569.12 mi (10,571.98 km) |
| Seaside to Sozopol | 6,647.80 mi (10,698.60 km) |
| Seaside to Sredets | 6,641.47 mi (10,688.42 km) |
| Seaside to Stamboliyski | 6,596.16 mi (10,615.50 km) |
| Seaside to Stara Zagora | 6,602.68 mi (10,625.99 km) |
| Seaside to Svilengrad | 6,656.39 mi (10,712.42 km) |
| Seaside to Svishtov | 6,522.46 mi (10,496.89 km) |
| Seaside to Targovishte | 6,571.91 mi (10,576.47 km) |
| Seaside to Teteven | 6,541.69 mi (10,527.83 km) |
| Seaside to Troyan | 6,553.93 mi (10,547.53 km) |
| Seaside to Tryavna | 6,572.38 mi (10,577.23 km) |
| Seaside to Tutrakan | 6,522.50 mi (10,496.95 km) |
| Seaside to Varna | 6,601.81 mi (10,624.59 km) |
