| Letchworth to Bois-Colombes | 238.29 mi (383.49 km) |
| Letchworth to Bois-d'Arcy | 241.01 mi (387.86 km) |
| Letchworth to Bois-Guillaume | 183.05 mi (294.60 km) |
| Letchworth to Boissy-Saint-Leger | 253.56 mi (408.07 km) |
| Letchworth to Bolbec | 169.03 mi (272.03 km) |
| Letchworth to Bollene | 578.97 mi (931.75 km) |
| Letchworth to Bondoufle | 259.43 mi (417.51 km) |
| Letchworth to Bondues | 168.36 mi (270.94 km) |
| Letchworth to Bondy | 243.71 mi (392.21 km) |
| Letchworth to Bonneuil-sur-Marne | 251.63 mi (404.96 km) |
| Letchworth to Bonneville | 505.88 mi (814.13 km) |
| Letchworth to Bordeaux | 493.45 mi (794.13 km) |
| Letchworth to Borgo | 791.62 mi (1,273.99 km) |
| Letchworth to Bouc-Bel-Air | 644.25 mi (1,036.82 km) |
| Letchworth to Boucau | 587.03 mi (944.73 km) |
