| Southwick to Smolyan | 1,343.75 mi (2,162.56 km) |
| Southwick to Sofia | 1,241.62 mi (1,998.20 km) |
| Southwick to Sopot | 1,302.89 mi (2,096.80 km) |
| Southwick to Sozopol | 1,436.52 mi (2,311.86 km) |
| Southwick to Sredets | 1,417.85 mi (2,281.81 km) |
| Southwick to Stamboliyski | 1,314.34 mi (2,115.22 km) |
| Southwick to Stara Zagora | 1,349.16 mi (2,171.26 km) |
| Southwick to Svilengrad | 1,398.68 mi (2,250.96 km) |
| Southwick to Svishtov | 1,291.85 mi (2,079.02 km) |
| Southwick to Targovishte | 1,357.77 mi (2,185.12 km) |
| Southwick to Teteven | 1,272.26 mi (2,047.51 km) |
| Southwick to Troyan | 1,292.46 mi (2,080.01 km) |
| Southwick to Tryavna | 1,326.10 mi (2,134.16 km) |
| Southwick to Tutrakan | 1,330.65 mi (2,141.47 km) |
| Southwick to Varna | 1,416.00 mi (2,278.83 km) |
