| Saint-Omer to Bougival | 130.24 mi (209.59 km) |
| Saint-Omer to Bouguenais | 303.03 mi (487.68 km) |
| Saint-Omer to Boulogne-Billancourt | 132.19 mi (212.73 km) |
| Saint-Omer to Boulogne-sur-Mer | 28.29 mi (45.53 km) |
| Saint-Omer to Bourg-de-Peage | 415.10 mi (668.04 km) |
| Saint-Omer to Bourg-en-Bresse | 341.98 mi (550.36 km) |
| Saint-Omer to Bourg-la-Reine | 136.05 mi (218.94 km) |
| Saint-Omer to Bourg-les-Valence | 418.93 mi (674.20 km) |
| Saint-Omer to Bourges | 253.23 mi (407.53 km) |
| Saint-Omer to Bourgoin-Jallieu | 382.66 mi (615.83 km) |
| Saint-Omer to Bressuire | 297.57 mi (478.90 km) |
| Saint-Omer to Brest | 343.41 mi (552.66 km) |
| Saint-Omer to Bretigny-sur-Orge | 147.66 mi (237.63 km) |
| Saint-Omer to Breuillet | 150.83 mi (242.73 km) |
| Saint-Omer to Briancon | 452.23 mi (727.80 km) |
