| Grande-Synthe to Borgosesia | 456.74 mi (735.05 km) |
| Grande-Synthe to Boscoreale | 916.46 mi (1,474.91 km) |
| Grande-Synthe to Boscotrecase | 915.03 mi (1,472.59 km) |
| Grande-Synthe to Botticino Sera | 525.16 mi (845.17 km) |
| Grande-Synthe to Bovalino Marina | 1,116.54 mi (1,796.90 km) |
| Grande-Synthe to Boves | 521.84 mi (839.83 km) |
| Grande-Synthe to Boville Ernica | 836.10 mi (1,345.58 km) |
| Grande-Synthe to Bovisio Masciago | 487.48 mi (784.52 km) |
| Grande-Synthe to Bovolone | 568.84 mi (915.46 km) |
| Grande-Synthe to Bra | 506.07 mi (814.44 km) |
| Grande-Synthe to Bracciano | 772.96 mi (1,243.96 km) |
| Grande-Synthe to Brandizzo | 477.09 mi (767.81 km) |
| Grande-Synthe to Breganze | 561.12 mi (903.04 km) |
| Grande-Synthe to Brembate | 500.37 mi (805.27 km) |
| Grande-Synthe to Brescia | 524.46 mi (844.03 km) |
