| Watford to Arapgir | 2,048.50 mi (3,296.74 km) |
| Watford to Ardahan | 2,143.20 mi (3,449.15 km) |
| Watford to Ardesen | 2,066.53 mi (3,325.76 km) |
| Watford to Arhavi | 2,074.47 mi (3,338.54 km) |
| Watford to Aricak | 2,138.37 mi (3,441.37 km) |
| Watford to Armutlu | 1,582.64 mi (2,547.02 km) |
| Watford to Arnavutkoy | 1,550.53 mi (2,495.33 km) |
| Watford to Arpacay | 2,180.53 mi (3,509.22 km) |
| Watford to Arsin | 2,031.17 mi (3,268.84 km) |
| Watford to Arsuz | 2,056.95 mi (3,310.35 km) |
| Watford to Artvin | 2,102.52 mi (3,383.68 km) |
| Watford to Asagicinik | 1,865.84 mi (3,002.77 km) |
| Watford to Asarcik | 1,871.96 mi (3,012.62 km) |
| Watford to Askale | 2,105.23 mi (3,388.03 km) |
| Watford to Aslanapa | 1,682.58 mi (2,707.85 km) |
