| Cascais to Seysses | 648.83 mi (1,044.20 km) |
| Cascais to Sin-le-Noble | 1,012.10 mi (1,628.82 km) |
| Cascais to Six-Fours-les-Plages | 850.30 mi (1,368.43 km) |
| Cascais to Soissons | 969.47 mi (1,560.22 km) |
| Cascais to Soisy-sous-Montmorency | 917.67 mi (1,476.85 km) |
| Cascais to Sollies-Pont | 862.71 mi (1,388.39 km) |
| Cascais to Somain | 1,016.77 mi (1,636.34 km) |
| Cascais to Sorgues | 825.34 mi (1,328.26 km) |
| Cascais to Sotteville-les-Rouen | 903.49 mi (1,454.03 km) |
| Cascais to Soyaux | 686.35 mi (1,104.57 km) |
| Cascais to Stains | 918.41 mi (1,478.04 km) |
| Cascais to Stiring-Wendel | 1,085.48 mi (1,746.91 km) |
| Cascais to Strasbourg | 1,092.37 mi (1,757.99 km) |
| Cascais to Sucy-en-Brie | 913.95 mi (1,470.86 km) |
| Cascais to Suresnes | 909.29 mi (1,463.35 km) |
