| Watford to Saint-Nazaire | 313.52 mi (504.55 km) |
| Watford to Saint-Omer | 130.95 mi (210.75 km) |
| Watford to Saint-Orens-de-Gameville | 567.02 mi (912.53 km) |
| Watford to Saint-Ouen | 224.55 mi (361.37 km) |
| Watford to Saint-Ouen-l'Aumone | 211.49 mi (340.37 km) |
| Watford to Saint-Paul-les-Dax | 548.71 mi (883.07 km) |
| Watford to Saint-Paul-Trois-Chateaux | 558.07 mi (898.13 km) |
| Watford to Saint-Philbert-de-Grand-Lieu | 324.07 mi (521.55 km) |
| Watford to Saint-Pierre-des-Corps | 298.90 mi (481.03 km) |
| Watford to Saint-Pierre-du-Mont | 537.06 mi (864.31 km) |
| Watford to Saint-Pierre-du-Perray | 246.06 mi (395.99 km) |
| Watford to Saint-Pol-sur-Mer | 125.84 mi (202.51 km) |
| Watford to Saint-Priest | 478.05 mi (769.34 km) |
| Watford to Saint-Quentin | 203.64 mi (327.72 km) |
| Watford to Saint-Rambert | 474.94 mi (764.35 km) |
