| Highlands Ranch to Smyrna (Delaware) | 1,560.36 mi (2,511.16 km) |
| Highlands Ranch to Smyrna (Georgia) | 1,195.85 mi (1,924.53 km) |
| Highlands Ranch to Smyrna (Tennessee) | 1,035.34 mi (1,666.22 km) |
| Highlands Ranch to Snellville (Georgia) | 1,222.75 mi (1,967.82 km) |
| Highlands Ranch to Snoqualmie (Washington) | 1,005.92 mi (1,618.88 km) |
| Highlands Ranch to Snyder (Texas) | 523.22 mi (842.04 km) |
| Highlands Ranch to Socastee (South Carolina) | 1,489.70 mi (2,397.44 km) |
| Highlands Ranch to Socorro (Texas) | 550.85 mi (886.51 km) |
| Highlands Ranch to Soddy-Daisy (Tennessee) | 1,123.63 mi (1,808.31 km) |
| Highlands Ranch to Solana Beach (California) | 819.25 mi (1,318.45 km) |
| Highlands Ranch to Soledad (California) | 915.40 mi (1,473.20 km) |
| Highlands Ranch to Solon (Ohio) | 1,239.65 mi (1,995.02 km) |
| Highlands Ranch to Somers Point (New Jersey) | 1,612.79 mi (2,595.53 km) |
| Highlands Ranch to Somerset (Kentucky) | 1,114.31 mi (1,793.31 km) |
| Highlands Ranch to Somerset (New Jersey) | 1,605.48 mi (2,583.77 km) |
