| Workington to Smolyan | 1,567.99 mi (2,523.44 km) |
| Workington to Sofia | 1,463.89 mi (2,355.90 km) |
| Workington to Sopot | 1,518.82 mi (2,444.30 km) |
| Workington to Sozopol | 1,640.77 mi (2,640.57 km) |
| Workington to Sredets | 1,624.88 mi (2,614.98 km) |
| Workington to Stamboliyski | 1,535.30 mi (2,470.83 km) |
| Workington to Stara Zagora | 1,562.61 mi (2,514.78 km) |
| Workington to Svilengrad | 1,614.69 mi (2,598.59 km) |
| Workington to Svishtov | 1,496.86 mi (2,408.96 km) |
| Workington to Targovishte | 1,560.27 mi (2,511.01 km) |
| Workington to Teteven | 1,488.31 mi (2,395.21 km) |
| Workington to Troyan | 1,506.66 mi (2,424.73 km) |
| Workington to Tryavna | 1,536.78 mi (2,473.21 km) |
| Workington to Tutrakan | 1,525.96 mi (2,455.79 km) |
| Workington to Varna | 1,612.76 mi (2,595.48 km) |
