| Knic to Smyrna (Delaware) | 4,684.52 mi (7,539.01 km) |
| Knic to Smyrna (Georgia) | 5,302.42 mi (8,533.41 km) |
| Knic to Smyrna (Tennessee) | 5,281.06 mi (8,499.04 km) |
| Knic to Snellville (Georgia) | 5,281.70 mi (8,500.08 km) |
| Knic to Snoqualmie (Washington) | 5,720.47 mi (9,206.21 km) |
| Knic to Snyder (Texas) | 5,992.57 mi (9,644.11 km) |
| Knic to Socastee (South Carolina) | 5,080.63 mi (8,176.48 km) |
| Knic to Socorro (Texas) | 6,238.39 mi (10,039.72 km) |
| Knic to Soddy-Daisy (Tennessee) | 5,261.66 mi (8,467.82 km) |
| Knic to Solana Beach (California) | 6,500.09 mi (10,460.88 km) |
| Knic to Soledad (California) | 6,396.54 mi (10,294.23 km) |
| Knic to Solon (Ohio) | 4,824.99 mi (7,765.07 km) |
| Knic to Somers Point (New Jersey) | 4,641.96 mi (7,470.52 km) |
| Knic to Somerset (Kentucky) | 5,151.20 mi (8,290.05 km) |
| Knic to Somerset (New Jersey) | 4,586.13 mi (7,380.67 km) |
