| Silver Spring to Smyrna (Delaware) | 78.30 mi (126.01 km) |
| Silver Spring to Smyrna (Georgia) | 547.12 mi (880.51 km) |
| Silver Spring to Smyrna (Tennessee) | 561.38 mi (903.45 km) |
| Silver Spring to Snellville (Georgia) | 526.13 mi (846.73 km) |
| Silver Spring to Snoqualmie (Washington) | 2,296.37 mi (3,695.66 km) |
| Silver Spring to Snyder (Texas) | 1,401.81 mi (2,255.99 km) |
| Silver Spring to Socastee (South Carolina) | 383.55 mi (617.26 km) |
| Silver Spring to Socorro (Texas) | 1,716.59 mi (2,762.58 km) |
| Silver Spring to Soddy-Daisy (Tennessee) | 518.05 mi (833.72 km) |
| Silver Spring to Solana Beach (California) | 2,268.34 mi (3,650.53 km) |
| Silver Spring to Soledad (California) | 2,404.78 mi (3,870.12 km) |
| Silver Spring to Solon (Ohio) | 285.46 mi (459.41 km) |
| Silver Spring to Somers Point (New Jersey) | 131.13 mi (211.04 km) |
| Silver Spring to Somerset (Kentucky) | 433.62 mi (697.85 km) |
| Silver Spring to Somerset (New Jersey) | 169.50 mi (272.78 km) |
