| Fort Collins to Seysses | 5,045.16 mi (8,119.41 km) |
| Fort Collins to Sin-le-Noble | 4,805.39 mi (7,733.53 km) |
| Fort Collins to Six-Fours-les-Plages | 5,232.82 mi (8,421.42 km) |
| Fort Collins to Soissons | 4,856.00 mi (7,814.98 km) |
| Fort Collins to Soisy-sous-Montmorency | 4,837.85 mi (7,785.77 km) |
| Fort Collins to Sollies-Pont | 5,236.79 mi (8,427.79 km) |
| Fort Collins to Somain | 4,811.31 mi (7,743.06 km) |
| Fort Collins to Sorgues | 5,155.48 mi (8,296.94 km) |
| Fort Collins to Sotteville-les-Rouen | 4,777.10 mi (7,688.00 km) |
| Fort Collins to Soyaux | 4,908.32 mi (7,899.17 km) |
| Fort Collins to Stains | 4,842.44 mi (7,793.15 km) |
| Fort Collins to Stiring-Wendel | 4,986.63 mi (8,025.21 km) |
| Fort Collins to Strasbourg | 5,042.78 mi (8,115.57 km) |
| Fort Collins to Sucy-en-Brie | 4,855.27 mi (7,813.80 km) |
| Fort Collins to Suresnes | 4,840.24 mi (7,789.61 km) |
