| Llantrisant to Bougival | 305.94 mi (492.36 km) |
| Llantrisant to Bouguenais | 311.69 mi (501.61 km) |
| Llantrisant to Boulogne-Billancourt | 310.82 mi (500.21 km) |
| Llantrisant to Boulogne-sur-Mer | 223.50 mi (359.69 km) |
| Llantrisant to Bourg-de-Peage | 592.49 mi (953.53 km) |
| Llantrisant to Bourg-en-Bresse | 536.76 mi (863.84 km) |
| Llantrisant to Bourg-la-Reine | 315.86 mi (508.33 km) |
| Llantrisant to Bourg-les-Valence | 592.88 mi (954.15 km) |
| Llantrisant to Bourges | 402.78 mi (648.22 km) |
| Llantrisant to Bourgoin-Jallieu | 569.98 mi (917.29 km) |
| Llantrisant to Bressuire | 349.97 mi (563.23 km) |
| Llantrisant to Brest | 223.34 mi (359.43 km) |
| Llantrisant to Bretigny-sur-Orge | 323.03 mi (519.87 km) |
| Llantrisant to Breuillet | 320.50 mi (515.79 km) |
| Llantrisant to Briancon | 649.46 mi (1,045.20 km) |
