| Buckie to Smolyan | 1,643.14 mi (2,644.37 km) |
| Buckie to Sofia | 1,539.08 mi (2,476.92 km) |
| Buckie to Sopot | 1,587.29 mi (2,554.49 km) |
| Buckie to Sozopol | 1,696.76 mi (2,730.68 km) |
| Buckie to Sredets | 1,683.57 mi (2,709.44 km) |
| Buckie to Stamboliyski | 1,608.01 mi (2,587.84 km) |
| Buckie to Stara Zagora | 1,628.08 mi (2,620.14 km) |
| Buckie to Svilengrad | 1,681.55 mi (2,706.19 km) |
| Buckie to Svishtov | 1,556.16 mi (2,504.41 km) |
| Buckie to Targovishte | 1,616.17 mi (2,600.97 km) |
| Buckie to Teteven | 1,557.47 mi (2,506.50 km) |
| Buckie to Troyan | 1,573.81 mi (2,532.81 km) |
| Buckie to Tryavna | 1,600.26 mi (2,575.36 km) |
| Buckie to Tutrakan | 1,576.38 mi (2,536.94 km) |
| Buckie to Varna | 1,662.76 mi (2,675.96 km) |
