| Llanelli to Bougival | 339.50 mi (546.37 km) |
| Llanelli to Bouguenais | 331.60 mi (533.66 km) |
| Llanelli to Boulogne-Billancourt | 344.42 mi (554.29 km) |
| Llanelli to Boulogne-sur-Mer | 258.64 mi (416.24 km) |
| Llanelli to Bourg-de-Peage | 623.36 mi (1,003.21 km) |
| Llanelli to Bourg-en-Bresse | 569.22 mi (916.06 km) |
| Llanelli to Bourg-la-Reine | 349.43 mi (562.36 km) |
| Llanelli to Bourg-les-Valence | 623.48 mi (1,003.39 km) |
| Llanelli to Bourges | 433.30 mi (697.33 km) |
| Llanelli to Bourgoin-Jallieu | 601.73 mi (968.39 km) |
| Llanelli to Bressuire | 373.33 mi (600.82 km) |
| Llanelli to Brest | 228.05 mi (367.02 km) |
| Llanelli to Bretigny-sur-Orge | 356.30 mi (573.40 km) |
| Llanelli to Breuillet | 353.54 mi (568.97 km) |
| Llanelli to Briancon | 681.63 mi (1,096.97 km) |
