| Saint-Omer to Borgosesia | 443.84 mi (714.29 km) |
| Saint-Omer to Boscoreale | 904.68 mi (1,455.95 km) |
| Saint-Omer to Boscotrecase | 903.25 mi (1,453.63 km) |
| Saint-Omer to Botticino Sera | 514.18 mi (827.50 km) |
| Saint-Omer to Bovalino Marina | 1,104.37 mi (1,777.30 km) |
| Saint-Omer to Boves | 506.95 mi (815.86 km) |
| Saint-Omer to Boville Ernica | 824.21 mi (1,326.43 km) |
| Saint-Omer to Bovisio Masciago | 475.45 mi (765.16 km) |
| Saint-Omer to Bovolone | 558.39 mi (898.64 km) |
| Saint-Omer to Bra | 491.74 mi (791.37 km) |
| Saint-Omer to Bracciano | 760.43 mi (1,223.80 km) |
| Saint-Omer to Brandizzo | 463.15 mi (745.37 km) |
| Saint-Omer to Breganze | 551.70 mi (887.87 km) |
| Saint-Omer to Brembate | 488.76 mi (786.59 km) |
| Saint-Omer to Brescia | 513.47 mi (826.35 km) |
