| Wheat Ridge to Sestu | 5,576.49 mi (8,974.50 km) |
| Wheat Ridge to Settimo Torinese | 5,247.92 mi (8,445.71 km) |
| Wheat Ridge to Seveso | 5,271.94 mi (8,484.37 km) |
| Wheat Ridge to Sezze | 5,613.69 mi (9,034.35 km) |
| Wheat Ridge to Siano | 5,706.56 mi (9,183.83 km) |
| Wheat Ridge to Siena | 5,461.78 mi (8,789.89 km) |
| Wheat Ridge to Signa | 5,430.77 mi (8,739.98 km) |
| Wheat Ridge to Silea | 5,379.69 mi (8,657.78 km) |
| Wheat Ridge to Silvi Paese | 5,597.42 mi (9,008.18 km) |
| Wheat Ridge to Sinalunga | 5,480.94 mi (8,820.72 km) |
| Wheat Ridge to Siniscola | 5,537.11 mi (8,911.12 km) |
| Wheat Ridge to Sinnai | 5,580.56 mi (8,981.05 km) |
| Wheat Ridge to Siracusa | 5,919.69 mi (9,526.82 km) |
| Wheat Ridge to Solaro | 5,271.43 mi (8,483.55 km) |
| Wheat Ridge to Soliera | 5,377.86 mi (8,654.83 km) |
