| Grande-Synthe to Berga | 616.27 mi (991.79 km) |
| Grande-Synthe to Berja | 1,012.55 mi (1,629.54 km) |
| Grande-Synthe to Bermeo | 574.99 mi (925.36 km) |
| Grande-Synthe to Berriozar | 595.11 mi (957.74 km) |
| Grande-Synthe to Betanzos | 726.40 mi (1,169.02 km) |
| Grande-Synthe to Betera | 800.37 mi (1,288.07 km) |
| Grande-Synthe to Bilbao | 589.20 mi (948.23 km) |
| Grande-Synthe to Binefar | 640.24 mi (1,030.37 km) |
| Grande-Synthe to Binisalem | 783.30 mi (1,260.60 km) |
| Grande-Synthe to Blanes | 645.74 mi (1,039.22 km) |
| Grande-Synthe to Boadilla del Monte | 790.47 mi (1,272.14 km) |
| Grande-Synthe to Boiro | 782.12 mi (1,258.70 km) |
| Grande-Synthe to Bolanos de Calatrava | 887.59 mi (1,428.44 km) |
| Grande-Synthe to Bollullos de la Mitacion | 1,031.94 mi (1,660.75 km) |
| Grande-Synthe to Bollullos par del Condado | 1,039.87 mi (1,673.51 km) |
