| Flensburg to Blumberg | 481.26 mi (774.52 km) |
| Flensburg to Bobenheim-Roxheim | 362.01 mi (582.61 km) |
| Flensburg to Bobingen | 454.02 mi (730.68 km) |
| Flensburg to Boblingen | 421.60 mi (678.50 km) |
| Flensburg to Bocholt | 234.60 mi (377.56 km) |
| Flensburg to Bochum | 245.86 mi (395.68 km) |
| Flensburg to Bockenem | 193.53 mi (311.46 km) |
| Flensburg to Bockhorn | 111.47 mi (179.40 km) |
| Flensburg to Bogen | 428.16 mi (689.06 km) |
| Flensburg to Bohl-Iggelheim | 376.87 mi (606.52 km) |
| Flensburg to Bohmte | 173.08 mi (278.54 km) |
| Flensburg to Boizenburg | 110.69 mi (178.14 km) |
| Flensburg to Bonen | 230.63 mi (371.16 km) |
| Flensburg to Bonn | 296.26 mi (476.79 km) |
| Flensburg to Bopfingen | 411.23 mi (661.81 km) |
