| Letchworth to Benisa | 916.52 mi (1,475.00 km) |
| Letchworth to Berga | 689.39 mi (1,109.46 km) |
| Letchworth to Berja | 1,053.94 mi (1,696.15 km) |
| Letchworth to Bermeo | 602.49 mi (969.62 km) |
| Letchworth to Berriozar | 635.20 mi (1,022.25 km) |
| Letchworth to Betanzos | 705.68 mi (1,135.68 km) |
| Letchworth to Betera | 855.85 mi (1,377.35 km) |
| Letchworth to Bilbao | 615.38 mi (990.35 km) |
| Letchworth to Binefar | 700.22 mi (1,126.89 km) |
| Letchworth to Binisalem | 862.00 mi (1,387.25 km) |
| Letchworth to Blanes | 725.96 mi (1,168.32 km) |
| Letchworth to Boadilla del Monte | 818.00 mi (1,316.44 km) |
| Letchworth to Boiro | 760.60 mi (1,224.06 km) |
| Letchworth to Bolanos de Calatrava | 920.15 mi (1,480.84 km) |
| Letchworth to Bollullos de la Mitacion | 1,051.75 mi (1,692.63 km) |
