| Cities | Distance |
|---|---|
| Watford to Ayamonte | 1,055.65 mi (1,698.90 km) |
| Watford to Azcoitia | 592.37 mi (953.32 km) |
| Watford to Azpeitia | 591.87 mi (952.52 km) |
| Watford to Azuqueca de Henares | 778.36 mi (1,252.65 km) |
| Watford to Badajoz | 937.90 mi (1,509.40 km) |
| Watford to Badalona | 717.09 mi (1,154.04 km) |
| Watford to Baena | 988.55 mi (1,590.92 km) |
| Watford to Baeza | 956.31 mi (1,539.04 km) |
| Watford to Bailen | 951.86 mi (1,531.88 km) |
| Watford to Balaguer | 683.92 mi (1,100.67 km) |
| Watford to Banolas | 675.38 mi (1,086.92 km) |
| Watford to Baranain | 614.69 mi (989.26 km) |
| Watford to Barbadanes | 736.06 mi (1,184.58 km) |
| Watford to Barbastro | 665.05 mi (1,070.30 km) |
| Watford to Barcelona | 720.10 mi (1,158.89 km) |