| Boulogne-Billancourt to Azcoitia | 447.49 mi (720.17 km) |
| Boulogne-Billancourt to Azpeitia | 446.28 mi (718.21 km) |
| Boulogne-Billancourt to Azuqueca de Henares | 631.83 mi (1,016.83 km) |
| Boulogne-Billancourt to Badajoz | 825.65 mi (1,328.75 km) |
| Boulogne-Billancourt to Badalona | 511.42 mi (823.05 km) |
| Boulogne-Billancourt to Baena | 841.71 mi (1,354.61 km) |
| Boulogne-Billancourt to Baeza | 802.08 mi (1,290.82 km) |
| Boulogne-Billancourt to Bailen | 801.02 mi (1,289.11 km) |
| Boulogne-Billancourt to Balaguer | 491.69 mi (791.30 km) |
| Boulogne-Billancourt to Banolas | 464.71 mi (747.88 km) |
| Boulogne-Billancourt to Baranain | 457.32 mi (735.99 km) |
| Boulogne-Billancourt to Barbadanes | 665.87 mi (1,071.61 km) |
| Boulogne-Billancourt to Barbastro | 480.78 mi (773.73 km) |
| Boulogne-Billancourt to Barcelona | 514.94 mi (828.72 km) |
| Boulogne-Billancourt to Bargas | 687.38 mi (1,106.23 km) |
