| Niederhasli to Smolyan | 894.18 mi (1,439.04 km) |
| Niederhasli to Sofia | 794.20 mi (1,278.14 km) |
| Niederhasli to Sopot | 858.94 mi (1,382.32 km) |
| Niederhasli to Sozopol | 999.40 mi (1,608.39 km) |
| Niederhasli to Sredets | 978.86 mi (1,575.32 km) |
| Niederhasli to Stamboliyski | 866.94 mi (1,395.20 km) |
| Niederhasli to Stara Zagora | 906.35 mi (1,458.63 km) |
| Niederhasli to Svilengrad | 953.57 mi (1,534.61 km) |
| Niederhasli to Svishtov | 856.53 mi (1,378.45 km) |
| Niederhasli to Targovishte | 923.35 mi (1,485.99 km) |
| Niederhasli to Teteven | 828.63 mi (1,333.56 km) |
| Niederhasli to Troyan | 849.88 mi (1,367.75 km) |
| Niederhasli to Tryavna | 885.66 mi (1,425.33 km) |
| Niederhasli to Tutrakan | 903.14 mi (1,453.46 km) |
| Niederhasli to Varna | 985.42 mi (1,585.87 km) |
