| Llantwit Major to Bougival | 304.25 mi (489.65 km) |
| Llantwit Major to Bouguenais | 303.85 mi (489.00 km) |
| Llantwit Major to Boulogne-Billancourt | 309.17 mi (497.56 km) |
| Llantwit Major to Boulogne-sur-Mer | 225.88 mi (363.52 km) |
| Llantwit Major to Bourg-de-Peage | 588.81 mi (947.61 km) |
| Llantwit Major to Bourg-en-Bresse | 534.13 mi (859.59 km) |
| Llantwit Major to Bourg-la-Reine | 314.19 mi (505.63 km) |
| Llantwit Major to Bourg-les-Valence | 589.04 mi (947.98 km) |
| Llantwit Major to Bourges | 398.87 mi (641.93 km) |
| Llantwit Major to Bourgoin-Jallieu | 566.85 mi (912.26 km) |
| Llantwit Major to Bressuire | 343.10 mi (552.17 km) |
| Llantwit Major to Brest | 213.23 mi (343.17 km) |
| Llantwit Major to Bretigny-sur-Orge | 321.06 mi (516.70 km) |
| Llantwit Major to Breuillet | 318.33 mi (512.30 km) |
| Llantwit Major to Briancon | 646.62 mi (1,040.63 km) |
