| Neunkirchen to Smolyan | 1,001.20 mi (1,611.27 km) |
| Neunkirchen to Sofia | 898.60 mi (1,446.15 km) |
| Neunkirchen to Sopot | 959.27 mi (1,543.80 km) |
| Neunkirchen to Sozopol | 1,092.91 mi (1,758.86 km) |
| Neunkirchen to Sredets | 1,074.12 mi (1,728.63 km) |
| Neunkirchen to Stamboliyski | 971.22 mi (1,563.03 km) |
| Neunkirchen to Stara Zagora | 1,005.44 mi (1,618.09 km) |
| Neunkirchen to Svilengrad | 1,055.13 mi (1,698.07 km) |
| Neunkirchen to Svishtov | 948.29 mi (1,526.13 km) |
| Neunkirchen to Targovishte | 1,014.35 mi (1,632.45 km) |
| Neunkirchen to Teteven | 928.63 mi (1,494.49 km) |
| Neunkirchen to Troyan | 948.74 mi (1,526.85 km) |
| Neunkirchen to Tryavna | 982.33 mi (1,580.91 km) |
| Neunkirchen to Tutrakan | 988.20 mi (1,590.36 km) |
| Neunkirchen to Varna | 1,073.15 mi (1,727.06 km) |
