| Wickford to Smolyan | 1,331.46 mi (2,142.78 km) |
| Wickford to Sofia | 1,228.42 mi (1,976.95 km) |
| Wickford to Sopot | 1,287.73 mi (2,072.40 km) |
| Wickford to Sozopol | 1,418.03 mi (2,282.09 km) |
| Wickford to Sredets | 1,400.15 mi (2,253.33 km) |
| Wickford to Stamboliyski | 1,300.87 mi (2,093.54 km) |
| Wickford to Stara Zagora | 1,333.31 mi (2,145.75 km) |
| Wickford to Svilengrad | 1,383.76 mi (2,226.95 km) |
| Wickford to Svishtov | 1,273.23 mi (2,049.07 km) |
| Wickford to Targovishte | 1,338.57 mi (2,154.22 km) |
| Wickford to Teteven | 1,257.07 mi (2,023.05 km) |
| Wickford to Troyan | 1,276.71 mi (2,054.67 km) |
| Wickford to Tryavna | 1,309.32 mi (2,107.15 km) |
| Wickford to Tutrakan | 1,309.29 mi (2,107.09 km) |
| Wickford to Varna | 1,395.26 mi (2,245.45 km) |
