| Watford to Zrece | 800.53 mi (1,288.34 km) |
| Watford to Zuzemberk | 803.48 mi (1,293.08 km) |
| Watford to Abaran | 930.71 mi (1,497.83 km) |
| Watford to Abrera | 708.86 mi (1,140.79 km) |
| Watford to Acala del Rio | 1,013.85 mi (1,631.63 km) |
| Watford to Adeje | 1,832.67 mi (2,949.39 km) |
| Watford to Adra | 1,037.96 mi (1,670.43 km) |
| Watford to Aguilar | 998.60 mi (1,607.09 km) |
| Watford to Aguilas | 986.33 mi (1,587.35 km) |
| Watford to Alacuas | 842.72 mi (1,356.22 km) |
| Watford to Alayor | 838.37 mi (1,349.22 km) |
| Watford to Albacete | 877.50 mi (1,412.20 km) |
| Watford to Albal | 846.93 mi (1,363.01 km) |
| Watford to Albatera | 931.41 mi (1,498.96 km) |
| Watford to Alberique | 866.33 mi (1,394.23 km) |
