| Potomac to Saint-Raphael | 4,181.70 mi (6,729.79 km) |
| Potomac to Saint-Remy-de-Provence | 4,083.89 mi (6,572.38 km) |
| Potomac to Saint-Saulve | 3,843.80 mi (6,186.00 km) |
| Potomac to Saint-Sebastien-sur-Loire | 3,708.45 mi (5,968.18 km) |
| Potomac to Saint-Sulpice-la-Pointe | 3,942.72 mi (6,345.19 km) |
| Potomac to Saint-Vallier | 3,979.20 mi (6,403.90 km) |
| Potomac to Sainte-Foy-les-Lyon | 4,024.27 mi (6,476.43 km) |
| Potomac to Sainte-Genevieve-des-Bois | 3,837.89 mi (6,176.49 km) |
| Potomac to Sainte-Luce-sur-Loire | 3,708.08 mi (5,967.58 km) |
| Potomac to Sainte-Maxime | 4,179.58 mi (6,726.38 km) |
| Potomac to Sainte-Savine | 3,919.23 mi (6,307.39 km) |
| Potomac to Saintes | 3,784.01 mi (6,089.77 km) |
| Potomac to Sallanches | 4,097.61 mi (6,594.47 km) |
| Potomac to Sallaumines | 3,814.15 mi (6,138.29 km) |
| Potomac to Salon-de-Provence | 4,100.34 mi (6,598.85 km) |
