| Potomac to Saint-Lo | 3,680.45 mi (5,923.11 km) |
| Potomac to Saint-Loubes | 3,815.25 mi (6,140.04 km) |
| Potomac to Saint-Louis | 4,087.70 mi (6,578.52 km) |
| Potomac to Saint-Lys | 3,927.09 mi (6,320.05 km) |
| Potomac to Saint-Malo | 3,651.95 mi (5,877.25 km) |
| Potomac to Saint-Mande | 3,835.87 mi (6,173.24 km) |
| Potomac to Saint-Martin-Boulogne | 3,756.19 mi (6,045.00 km) |
| Potomac to Saint-Martin-d'Heres | 4,083.26 mi (6,571.38 km) |
| Potomac to Saint-Martin-de-Crau | 4,087.61 mi (6,578.38 km) |
| Potomac to Saint-Maur-des-Fosses | 3,840.40 mi (6,180.53 km) |
| Potomac to Saint-Maurice | 3,837.17 mi (6,175.33 km) |
| Potomac to Saint-Max | 3,998.30 mi (6,434.65 km) |
| Potomac to Saint-Maximin-la-Sainte-Baume | 4,140.36 mi (6,663.27 km) |
| Potomac to Saint-Medard-en-Jalles | 3,802.81 mi (6,120.02 km) |
| Potomac to Saint-Michel-sur-Orge | 3,836.42 mi (6,174.12 km) |
