| Chatham to Smolyan | 1,325.37 mi (2,132.98 km) |
| Chatham to Sofia | 1,222.54 mi (1,967.49 km) |
| Chatham to Sopot | 1,282.37 mi (2,063.78 km) |
| Chatham to Sozopol | 1,413.58 mi (2,274.94 km) |
| Chatham to Sredets | 1,395.49 mi (2,245.82 km) |
| Chatham to Stamboliyski | 1,295.07 mi (2,084.22 km) |
| Chatham to Stara Zagora | 1,328.14 mi (2,137.44 km) |
| Chatham to Svilengrad | 1,378.36 mi (2,218.26 km) |
| Chatham to Svishtov | 1,268.79 mi (2,041.92 km) |
| Chatham to Targovishte | 1,334.30 mi (2,147.35 km) |
| Chatham to Teteven | 1,251.71 mi (2,014.44 km) |
| Chatham to Troyan | 1,271.51 mi (2,046.29 km) |
| Chatham to Tryavna | 1,304.40 mi (2,099.23 km) |
| Chatham to Tutrakan | 1,305.60 mi (2,101.16 km) |
| Chatham to Varna | 1,391.42 mi (2,239.27 km) |
