| Castel Gandolfo to Seysses | 588.57 mi (947.21 km) |
| Castel Gandolfo to Sin-le-Noble | 749.45 mi (1,206.12 km) |
| Castel Gandolfo to Six-Fours-les-Plages | 360.67 mi (580.44 km) |
| Castel Gandolfo to Soissons | 693.12 mi (1,115.47 km) |
| Castel Gandolfo to Soisy-sous-Montmorency | 707.89 mi (1,139.23 km) |
| Castel Gandolfo to Sollies-Pont | 351.26 mi (565.30 km) |
| Castel Gandolfo to Somain | 744.34 mi (1,197.90 km) |
| Castel Gandolfo to Sorgues | 423.53 mi (681.61 km) |
| Castel Gandolfo to Sotteville-les-Rouen | 768.41 mi (1,236.64 km) |
| Castel Gandolfo to Soyaux | 676.89 mi (1,089.35 km) |
| Castel Gandolfo to Stains | 703.31 mi (1,131.87 km) |
| Castel Gandolfo to Stiring-Wendel | 584.45 mi (940.58 km) |
| Castel Gandolfo to Strasbourg | 529.10 mi (851.50 km) |
| Castel Gandolfo to Sucy-en-Brie | 690.35 mi (1,111.01 km) |
| Castel Gandolfo to Suresnes | 705.32 mi (1,135.10 km) |
