| Porto to Seysses | 532.10 mi (856.34 km) |
| Porto to Sin-le-Noble | 848.92 mi (1,366.21 km) |
| Porto to Six-Fours-les-Plages | 751.05 mi (1,208.69 km) |
| Porto to Soissons | 810.52 mi (1,304.41 km) |
| Porto to Soisy-sous-Montmorency | 757.72 mi (1,219.42 km) |
| Porto to Sollies-Pont | 762.73 mi (1,227.49 km) |
| Porto to Somain | 853.98 mi (1,374.35 km) |
| Porto to Sorgues | 713.16 mi (1,147.71 km) |
| Porto to Sotteville-les-Rouen | 738.75 mi (1,188.91 km) |
| Porto to Soyaux | 539.65 mi (868.48 km) |
| Porto to Stains | 758.85 mi (1,221.24 km) |
| Porto to Stiring-Wendel | 936.20 mi (1,506.66 km) |
| Porto to Strasbourg | 948.41 mi (1,526.32 km) |
| Porto to Sucy-en-Brie | 755.58 mi (1,216.00 km) |
| Porto to Suresnes | 749.62 mi (1,206.40 km) |
