| South Portland to Seysses | 3,465.61 mi (5,577.36 km) |
| South Portland to Sin-le-Noble | 3,347.59 mi (5,387.43 km) |
| South Portland to Six-Fours-les-Plages | 3,679.11 mi (5,920.96 km) |
| South Portland to Soissons | 3,382.21 mi (5,443.14 km) |
| South Portland to Soisy-sous-Montmorency | 3,350.16 mi (5,391.57 km) |
| South Portland to Sollies-Pont | 3,685.93 mi (5,931.92 km) |
| South Portland to Somain | 3,354.57 mi (5,398.66 km) |
| South Portland to Sorgues | 3,607.66 mi (5,805.97 km) |
| South Portland to Sotteville-les-Rouen | 3,288.59 mi (5,292.48 km) |
| South Portland to Soyaux | 3,352.38 mi (5,395.14 km) |
| South Portland to Stains | 3,354.67 mi (5,398.82 km) |
| South Portland to Stiring-Wendel | 3,535.74 mi (5,690.23 km) |
| South Portland to Strasbourg | 3,587.56 mi (5,773.62 km) |
| South Portland to Sucy-en-Brie | 3,365.36 mi (5,416.03 km) |
| South Portland to Suresnes | 3,349.98 mi (5,391.27 km) |
