| Watford to Aulnay-sous-Bois | 226.80 mi (364.99 km) |
| Watford to Aulnoye-Aymeries | 209.70 mi (337.48 km) |
| Watford to Auray | 298.75 mi (480.79 km) |
| Watford to Aurillac | 482.76 mi (776.93 km) |
| Watford to Auriol | 637.32 mi (1,025.67 km) |
| Watford to Auterive | 580.35 mi (933.98 km) |
| Watford to Autun | 387.58 mi (623.75 km) |
| Watford to Auxerre | 319.78 mi (514.63 km) |
| Watford to Avignon | 584.20 mi (940.18 km) |
| Watford to Avion | 164.55 mi (264.81 km) |
| Watford to Avon | 263.55 mi (424.14 km) |
| Watford to Avranches | 209.61 mi (337.33 km) |
| Watford to Avrille | 286.74 mi (461.46 km) |
| Watford to Aytre | 382.84 mi (616.12 km) |
| Watford to Bagneux | 230.83 mi (371.49 km) |
