| Bonen to Smolyan | 1,056.50 mi (1,700.27 km) |
| Bonen to Sofia | 952.24 mi (1,532.47 km) |
| Bonen to Sopot | 1,005.97 mi (1,618.96 km) |
| Bonen to Sozopol | 1,127.81 mi (1,815.03 km) |
| Bonen to Sredets | 1,111.72 mi (1,789.14 km) |
| Bonen to Stamboliyski | 1,023.18 mi (1,646.65 km) |
| Bonen to Stara Zagora | 1,049.51 mi (1,689.02 km) |
| Bonen to Svilengrad | 1,101.74 mi (1,773.08 km) |
| Bonen to Svishtov | 983.74 mi (1,583.17 km) |
| Bonen to Targovishte | 1,047.39 mi (1,685.61 km) |
| Bonen to Teteven | 975.52 mi (1,569.95 km) |
| Bonen to Troyan | 993.66 mi (1,599.14 km) |
| Bonen to Tryavna | 1,023.57 mi (1,647.28 km) |
| Bonen to Tutrakan | 1,014.07 mi (1,631.98 km) |
| Bonen to Varna | 1,100.76 mi (1,771.50 km) |
