| Flensburg to Beyne-Heusay | 328.46 mi (528.60 km) |
| Flensburg to Bierbeek | 335.21 mi (539.48 km) |
| Flensburg to Bilzen | 316.06 mi (508.64 km) |
| Flensburg to Binche | 374.74 mi (603.08 km) |
| Flensburg to Bissegem | 377.31 mi (607.23 km) |
| Flensburg to Blankenberge | 355.85 mi (572.68 km) |
| Flensburg to Blegny | 323.72 mi (520.97 km) |
| Flensburg to Bocholt | 296.47 mi (477.13 km) |
| Flensburg to Boechout | 324.58 mi (522.37 km) |
| Flensburg to Bonheiden | 329.73 mi (530.65 km) |
| Flensburg to Boom | 331.32 mi (533.21 km) |
| Flensburg to Boortmeerbeek | 331.67 mi (533.77 km) |
| Flensburg to Borgerhout | 322.35 mi (518.77 km) |
| Flensburg to Borgloon | 323.70 mi (520.94 km) |
| Flensburg to Bornem | 333.97 mi (537.47 km) |
