| Watford to Acqui Terme | 631.05 mi (1,015.57 km) |
| Watford to Acri | 1,162.40 mi (1,870.69 km) |
| Watford to Adelfia | 1,099.65 mi (1,769.71 km) |
| Watford to Adrano | 1,217.23 mi (1,958.95 km) |
| Watford to Adria | 729.64 mi (1,174.24 km) |
| Watford to Afragola | 1,018.01 mi (1,638.33 km) |
| Watford to Agliana | 751.38 mi (1,209.23 km) |
| Watford to Agrate Brianza | 610.71 mi (982.84 km) |
| Watford to Agrigento | 1,202.25 mi (1,934.84 km) |
| Watford to Agropoli | 1,070.39 mi (1,722.63 km) |
| Watford to Ala | 659.40 mi (1,061.21 km) |
| Watford to Alassio | 660.49 mi (1,062.95 km) |
| Watford to Alatri | 942.81 mi (1,517.31 km) |
| Watford to Alba | 617.02 mi (992.99 km) |
| Watford to Albano Laziale | 920.91 mi (1,482.06 km) |
