| Ibbenburen to Smolyan | 1,085.04 mi (1,746.21 km) |
| Ibbenburen to Sofia | 980.75 mi (1,578.36 km) |
| Ibbenburen to Sopot | 1,032.58 mi (1,661.77 km) |
| Ibbenburen to Sozopol | 1,150.99 mi (1,852.34 km) |
| Ibbenburen to Sredets | 1,135.65 mi (1,827.66 km) |
| Ibbenburen to Stamboliyski | 1,051.02 mi (1,691.45 km) |
| Ibbenburen to Stara Zagora | 1,075.30 mi (1,730.53 km) |
| Ibbenburen to Svilengrad | 1,127.99 mi (1,815.33 km) |
| Ibbenburen to Svishtov | 1,007.58 mi (1,621.55 km) |
| Ibbenburen to Targovishte | 1,070.36 mi (1,722.58 km) |
| Ibbenburen to Teteven | 1,002.29 mi (1,613.03 km) |
| Ibbenburen to Troyan | 1,019.86 mi (1,641.31 km) |
| Ibbenburen to Tryavna | 1,048.74 mi (1,687.79 km) |
| Ibbenburen to Tutrakan | 1,035.29 mi (1,666.14 km) |
| Ibbenburen to Varna | 1,122.11 mi (1,805.87 km) |
