| Castellammare del Golfo to Bougival | 920.61 mi (1,481.59 km) |
| Castellammare del Golfo to Bouguenais | 968.67 mi (1,558.92 km) |
| Castellammare del Golfo to Boulogne-Billancourt | 916.09 mi (1,474.31 km) |
| Castellammare del Golfo to Boulogne-sur-Mer | 1,036.40 mi (1,667.92 km) |
| Castellammare del Golfo to Bourg-de-Peage | 630.81 mi (1,015.19 km) |
| Castellammare del Golfo to Bourg-en-Bresse | 687.14 mi (1,105.84 km) |
| Castellammare del Golfo to Bourg-la-Reine | 910.98 mi (1,466.08 km) |
| Castellammare del Golfo to Bourg-les-Valence | 631.41 mi (1,016.16 km) |
| Castellammare del Golfo to Bourges | 820.95 mi (1,321.19 km) |
| Castellammare del Golfo to Bourgoin-Jallieu | 652.27 mi (1,049.73 km) |
| Castellammare del Golfo to Bressuire | 911.84 mi (1,467.47 km) |
| Castellammare del Golfo to Brest | 1,125.88 mi (1,811.93 km) |
| Castellammare del Golfo to Bretigny-sur-Orge | 902.28 mi (1,452.09 km) |
| Castellammare del Golfo to Breuillet | 903.84 mi (1,454.59 km) |
| Castellammare del Golfo to Briancon | 573.93 mi (923.64 km) |
