| Haddington to Smolyan | 1,579.53 mi (2,542.00 km) |
| Haddington to Sofia | 1,475.22 mi (2,374.14 km) |
| Haddington to Sopot | 1,526.97 mi (2,457.42 km) |
| Haddington to Sozopol | 1,643.14 mi (2,644.37 km) |
| Haddington to Sredets | 1,628.51 mi (2,620.83 km) |
| Haddington to Stamboliyski | 1,545.57 mi (2,487.35 km) |
| Haddington to Stara Zagora | 1,569.39 mi (2,525.69 km) |
| Haddington to Svilengrad | 1,622.25 mi (2,610.77 km) |
| Haddington to Svishtov | 1,500.51 mi (2,414.84 km) |
| Haddington to Targovishte | 1,562.42 mi (2,514.47 km) |
| Haddington to Teteven | 1,496.73 mi (2,408.76 km) |
| Haddington to Troyan | 1,514.14 mi (2,436.78 km) |
| Haddington to Tryavna | 1,542.54 mi (2,482.48 km) |
| Haddington to Tutrakan | 1,525.41 mi (2,454.91 km) |
| Haddington to Varna | 1,612.20 mi (2,594.59 km) |
