| Watford to Fuente-Alamo de Murcia | 962.25 mi (1,548.59 km) |
| Watford to Galapagar | 784.45 mi (1,262.45 km) |
| Watford to Galdacano | 593.13 mi (954.55 km) |
| Watford to Gandia | 876.74 mi (1,410.97 km) |
| Watford to Garrucha | 1,002.26 mi (1,612.98 km) |
| Watford to Gava | 723.91 mi (1,165.03 km) |
| Watford to Gelves | 1,026.81 mi (1,652.49 km) |
| Watford to Getafe | 800.19 mi (1,287.78 km) |
| Watford to Gibraleon | 1,037.38 mi (1,669.50 km) |
| Watford to Gijon | 612.77 mi (986.16 km) |
| Watford to Gines | 1,023.97 mi (1,647.93 km) |
| Watford to Girona | 685.11 mi (1,102.58 km) |
| Watford to Godella | 838.45 mi (1,349.35 km) |
| Watford to Gondomar | 767.56 mi (1,235.27 km) |
| Watford to Grado | 629.17 mi (1,012.55 km) |
