| Uckfield to Smolyan | 1,332.82 mi (2,144.97 km) |
| Uckfield to Sofia | 1,230.48 mi (1,980.26 km) |
| Uckfield to Sopot | 1,291.33 mi (2,078.20 km) |
| Uckfield to Sozopol | 1,424.29 mi (2,292.17 km) |
| Uckfield to Sredets | 1,405.78 mi (2,262.38 km) |
| Uckfield to Stamboliyski | 1,303.15 mi (2,097.21 km) |
| Uckfield to Stara Zagora | 1,337.46 mi (2,152.43 km) |
| Uckfield to Svilengrad | 1,387.19 mi (2,232.47 km) |
| Uckfield to Svishtov | 1,279.56 mi (2,059.26 km) |
| Uckfield to Targovishte | 1,345.38 mi (2,165.18 km) |
| Uckfield to Teteven | 1,260.69 mi (2,028.89 km) |
| Uckfield to Troyan | 1,280.77 mi (2,061.20 km) |
| Uckfield to Tryavna | 1,314.21 mi (2,115.01 km) |
| Uckfield to Tutrakan | 1,317.81 mi (2,120.82 km) |
| Uckfield to Varna | 1,403.30 mi (2,258.39 km) |
