| Portalegre to Seysses | 536.30 mi (863.10 km) |
| Portalegre to Sin-le-Noble | 919.24 mi (1,479.38 km) |
| Portalegre to Six-Fours-les-Plages | 735.04 mi (1,182.93 km) |
| Portalegre to Soissons | 872.93 mi (1,404.84 km) |
| Portalegre to Soisy-sous-Montmorency | 822.27 mi (1,323.32 km) |
| Portalegre to Sollies-Pont | 747.47 mi (1,202.93 km) |
| Portalegre to Somain | 923.49 mi (1,486.22 km) |
| Portalegre to Sorgues | 711.35 mi (1,144.81 km) |
| Portalegre to Sotteville-les-Rouen | 812.96 mi (1,308.33 km) |
| Portalegre to Soyaux | 583.80 mi (939.53 km) |
| Portalegre to Stains | 822.67 mi (1,323.96 km) |
| Portalegre to Stiring-Wendel | 981.92 mi (1,580.25 km) |
| Portalegre to Strasbourg | 986.15 mi (1,587.06 km) |
| Portalegre to Sucy-en-Brie | 817.24 mi (1,315.22 km) |
| Portalegre to Suresnes | 813.69 mi (1,309.50 km) |
