| Grande-Synthe to Bougival | 148.65 mi (239.23 km) |
| Grande-Synthe to Bouguenais | 318.93 mi (513.27 km) |
| Grande-Synthe to Boulogne-Billancourt | 150.56 mi (242.30 km) |
| Grande-Synthe to Boulogne-sur-Mer | 35.98 mi (57.91 km) |
| Grande-Synthe to Bourg-de-Peage | 431.90 mi (695.08 km) |
| Grande-Synthe to Bourg-en-Bresse | 358.03 mi (576.20 km) |
| Grande-Synthe to Bourg-la-Reine | 154.38 mi (248.44 km) |
| Grande-Synthe to Bourg-les-Valence | 435.89 mi (701.49 km) |
| Grande-Synthe to Bourges | 271.54 mi (436.99 km) |
| Grande-Synthe to Bourgoin-Jallieu | 399.02 mi (642.17 km) |
| Grande-Synthe to Bressuire | 314.94 mi (506.85 km) |
| Grande-Synthe to Brest | 353.36 mi (568.68 km) |
| Grande-Synthe to Bretigny-sur-Orge | 166.00 mi (267.15 km) |
| Grande-Synthe to Breuillet | 169.23 mi (272.35 km) |
| Grande-Synthe to Briancon | 467.64 mi (752.60 km) |
