| Sulingen to Smolyan | 1,065.55 mi (1,714.85 km) |
| Sulingen to Sofia | 961.43 mi (1,547.27 km) |
| Sulingen to Sopot | 1,010.71 mi (1,626.58 km) |
| Sulingen to Sozopol | 1,124.85 mi (1,810.28 km) |
| Sulingen to Sredets | 1,110.40 mi (1,787.01 km) |
| Sulingen to Stamboliyski | 1,030.68 mi (1,658.72 km) |
| Sulingen to Stara Zagora | 1,052.35 mi (1,693.59 km) |
| Sulingen to Svilengrad | 1,105.51 mi (1,779.15 km) |
| Sulingen to Svishtov | 982.47 mi (1,581.13 km) |
| Sulingen to Targovishte | 1,044.13 mi (1,680.37 km) |
| Sulingen to Teteven | 980.69 mi (1,578.27 km) |
| Sulingen to Troyan | 997.53 mi (1,605.37 km) |
| Sulingen to Tryavna | 1,025.09 mi (1,649.73 km) |
| Sulingen to Tutrakan | 1,007.21 mi (1,620.94 km) |
| Sulingen to Varna | 1,094.02 mi (1,760.65 km) |
