| Niebull to Smolyan | 1,163.50 mi (1,872.47 km) |
| Niebull to Sofia | 1,060.56 mi (1,706.80 km) |
| Niebull to Sopot | 1,103.84 mi (1,776.45 km) |
| Niebull to Sozopol | 1,206.72 mi (1,942.03 km) |
| Niebull to Sredets | 1,194.62 mi (1,922.55 km) |
| Niebull to Stamboliyski | 1,127.04 mi (1,813.80 km) |
| Niebull to Stara Zagora | 1,142.62 mi (1,838.88 km) |
| Niebull to Svilengrad | 1,196.49 mi (1,925.56 km) |
| Niebull to Svishtov | 1,068.14 mi (1,719.01 km) |
| Niebull to Targovishte | 1,126.42 mi (1,812.81 km) |
| Niebull to Teteven | 1,074.69 mi (1,729.54 km) |
| Niebull to Troyan | 1,089.70 mi (1,753.71 km) |
| Niebull to Tryavna | 1,113.95 mi (1,792.73 km) |
| Niebull to Tutrakan | 1,084.95 mi (1,746.06 km) |
| Niebull to Varna | 1,170.94 mi (1,884.45 km) |
