| Gelsenkirchen to Smolyan | 1,077.00 mi (1,733.26 km) |
| Gelsenkirchen to Sofia | 972.82 mi (1,565.60 km) |
| Gelsenkirchen to Sopot | 1,027.51 mi (1,653.63 km) |
| Gelsenkirchen to Sozopol | 1,150.87 mi (1,852.15 km) |
| Gelsenkirchen to Sredets | 1,134.47 mi (1,825.75 km) |
| Gelsenkirchen to Stamboliyski | 1,044.08 mi (1,680.28 km) |
| Gelsenkirchen to Stara Zagora | 1,071.43 mi (1,724.30 km) |
| Gelsenkirchen to Svilengrad | 1,123.41 mi (1,807.95 km) |
| Gelsenkirchen to Svishtov | 1,006.58 mi (1,619.93 km) |
| Gelsenkirchen to Targovishte | 1,070.57 mi (1,722.92 km) |
| Gelsenkirchen to Teteven | 997.00 mi (1,604.52 km) |
| Gelsenkirchen to Troyan | 1,015.40 mi (1,634.13 km) |
| Gelsenkirchen to Tryavna | 1,045.80 mi (1,683.05 km) |
| Gelsenkirchen to Tutrakan | 1,037.97 mi (1,670.45 km) |
| Gelsenkirchen to Varna | 1,124.57 mi (1,809.82 km) |
