| Mont-de-Marsan to Bougival | 365.98 mi (588.99 km) |
| Mont-de-Marsan to Bouguenais | 233.53 mi (375.83 km) |
| Mont-de-Marsan to Boulogne-Billancourt | 365.76 mi (588.63 km) |
| Mont-de-Marsan to Boulogne-sur-Mer | 482.57 mi (776.62 km) |
| Mont-de-Marsan to Bourg-de-Peage | 284.87 mi (458.45 km) |
| Mont-de-Marsan to Bourg-en-Bresse | 322.07 mi (518.33 km) |
| Mont-de-Marsan to Bourg-la-Reine | 363.48 mi (584.97 km) |
| Mont-de-Marsan to Bourg-les-Valence | 276.04 mi (444.24 km) |
| Mont-de-Marsan to Bourges | 261.49 mi (420.82 km) |
| Mont-de-Marsan to Bourgoin-Jallieu | 306.55 mi (493.34 km) |
| Mont-de-Marsan to Bressuire | 203.83 mi (328.03 km) |
| Mont-de-Marsan to Brest | 364.79 mi (587.07 km) |
| Mont-de-Marsan to Bretigny-sur-Orge | 352.63 mi (567.50 km) |
| Mont-de-Marsan to Breuillet | 347.35 mi (559.00 km) |
| Mont-de-Marsan to Briancon | 358.93 mi (577.64 km) |
