| Harlow to Ayamonte | 1,072.08 mi (1,725.34 km) |
| Harlow to Azcoitia | 604.91 mi (973.51 km) |
| Harlow to Azpeitia | 604.33 mi (972.58 km) |
| Harlow to Azuqueca de Henares | 791.46 mi (1,273.73 km) |
| Harlow to Badajoz | 954.56 mi (1,536.21 km) |
| Harlow to Badalona | 721.69 mi (1,161.44 km) |
| Harlow to Baena | 1,002.09 mi (1,612.71 km) |
| Harlow to Baeza | 968.99 mi (1,559.44 km) |
| Harlow to Bailen | 964.91 mi (1,552.87 km) |
| Harlow to Balaguer | 690.88 mi (1,111.87 km) |
| Harlow to Banolas | 678.80 mi (1,092.42 km) |
| Harlow to Baranain | 626.01 mi (1,007.47 km) |
| Harlow to Barbadanes | 755.28 mi (1,215.51 km) |
| Harlow to Barbastro | 673.17 mi (1,083.36 km) |
| Harlow to Barcelona | 724.81 mi (1,166.47 km) |
