| Watford to Roura | 4,388.81 mi (7,063.11 km) |
| Watford to Saint-Georges | 4,416.92 mi (7,108.35 km) |
| Watford to Saint-Laurent-du-Maroni | 4,409.15 mi (7,095.84 km) |
| Watford to Sinnamary | 4,375.04 mi (7,040.95 km) |
| Watford to Aachen | 286.83 mi (461.60 km) |
| Watford to Aalen | 502.50 mi (808.69 km) |
| Watford to Abensberg | 575.25 mi (925.78 km) |
| Watford to Achern | 428.57 mi (689.71 km) |
| Watford to Achim | 409.32 mi (658.74 km) |
| Watford to Adelsdorf | 511.56 mi (823.27 km) |
| Watford to Adendorf | 469.66 mi (755.84 km) |
| Watford to Aerzen | 412.85 mi (664.41 km) |
| Watford to Ahaus | 316.72 mi (509.71 km) |
| Watford to Ahlen | 354.68 mi (570.80 km) |
| Watford to Ahrensburg | 466.53 mi (750.81 km) |
