| Towson to Bougival | 3,783.06 mi (6,088.25 km) |
| Towson to Bouguenais | 3,663.64 mi (5,896.06 km) |
| Towson to Boulogne-Billancourt | 3,788.11 mi (6,096.38 km) |
| Towson to Boulogne-sur-Mer | 3,714.97 mi (5,978.67 km) |
| Towson to Bourg-de-Peage | 4,015.49 mi (6,462.30 km) |
| Towson to Bourg-en-Bresse | 3,988.56 mi (6,418.97 km) |
| Towson to Bourg-la-Reine | 3,792.68 mi (6,103.73 km) |
| Towson to Bourg-les-Valence | 4,011.39 mi (6,455.71 km) |
| Towson to Bourges | 3,841.13 mi (6,181.71 km) |
| Towson to Bourgoin-Jallieu | 4,008.86 mi (6,451.64 km) |
| Towson to Bressuire | 3,721.84 mi (5,989.72 km) |
| Towson to Brest | 3,510.08 mi (5,648.92 km) |
| Towson to Bretigny-sur-Orge | 3,796.66 mi (6,110.13 km) |
| Towson to Breuillet | 3,792.14 mi (6,102.86 km) |
| Towson to Briancon | 4,089.33 mi (6,581.14 km) |
