| Irthlingborough to Bollullos par del Condado | 1,074.57 mi (1,729.36 km) |
| Irthlingborough to Bormujos | 1,066.64 mi (1,716.60 km) |
| Irthlingborough to Brenes | 1,051.91 mi (1,692.89 km) |
| Irthlingborough to Brunete | 839.24 mi (1,350.62 km) |
| Irthlingborough to Bueu | 789.10 mi (1,269.93 km) |
| Irthlingborough to Bullas | 987.57 mi (1,589.34 km) |
| Irthlingborough to Bunol | 891.66 mi (1,434.99 km) |
| Irthlingborough to Burela de Cabo | 675.80 mi (1,087.60 km) |
| Irthlingborough to Burgos | 704.57 mi (1,133.90 km) |
| Irthlingborough to Burjasot | 885.67 mi (1,425.34 km) |
| Irthlingborough to Burriana | 859.50 mi (1,383.24 km) |
| Irthlingborough to Cabanaquinta | 677.49 mi (1,090.31 km) |
| Irthlingborough to Cabanillas del Campo | 816.83 mi (1,314.57 km) |
| Irthlingborough to Cabra | 1,043.04 mi (1,678.62 km) |
| Irthlingborough to Caceres | 928.58 mi (1,494.40 km) |
