| Potomac to Saint-Nazaire | 3,675.58 mi (5,915.27 km) |
| Potomac to Saint-Omer | 3,781.39 mi (6,085.56 km) |
| Potomac to Saint-Orens-de-Gameville | 3,942.25 mi (6,344.44 km) |
| Potomac to Saint-Ouen | 3,830.51 mi (6,164.60 km) |
| Potomac to Saint-Ouen-l'Aumone | 3,817.72 mi (6,144.02 km) |
| Potomac to Saint-Paul-les-Dax | 3,819.24 mi (6,146.48 km) |
| Potomac to Saint-Paul-Trois-Chateaux | 4,064.07 mi (6,540.48 km) |
| Potomac to Saint-Philbert-de-Grand-Lieu | 3,706.63 mi (5,965.24 km) |
| Potomac to Saint-Pierre-des-Corps | 3,801.10 mi (6,117.28 km) |
| Potomac to Saint-Pierre-du-Mont | 3,839.32 mi (6,178.80 km) |
| Potomac to Saint-Pierre-du-Perray | 3,845.07 mi (6,188.04 km) |
| Potomac to Saint-Pol-sur-Mer | 3,777.90 mi (6,079.94 km) |
| Potomac to Saint-Priest | 4,031.55 mi (6,488.15 km) |
| Potomac to Saint-Quentin | 3,846.13 mi (6,189.75 km) |
| Potomac to Saint-Rambert | 4,006.52 mi (6,447.87 km) |
