| Los Alamos to Smyrna (Delaware) | 1,687.68 mi (2,716.06 km) |
| Los Alamos to Smyrna (Georgia) | 1,239.29 mi (1,994.44 km) |
| Los Alamos to Smyrna (Tennessee) | 1,103.61 mi (1,776.09 km) |
| Los Alamos to Snellville (Georgia) | 1,268.11 mi (2,040.82 km) |
| Los Alamos to Snoqualmie (Washington) | 1,131.76 mi (1,821.39 km) |
| Los Alamos to Snyder (Texas) | 377.20 mi (607.04 km) |
| Los Alamos to Socastee (South Carolina) | 1,550.25 mi (2,494.89 km) |
| Los Alamos to Socorro (Texas) | 293.95 mi (473.07 km) |
| Los Alamos to Soddy-Daisy (Tennessee) | 1,184.96 mi (1,907.02 km) |
| Los Alamos to Solana Beach (California) | 655.99 mi (1,055.71 km) |
| Los Alamos to Soledad (California) | 839.83 mi (1,351.58 km) |
| Los Alamos to Solon (Ohio) | 1,388.16 mi (2,234.03 km) |
| Los Alamos to Somers Point (New Jersey) | 1,741.14 mi (2,802.10 km) |
| Los Alamos to Somerset (Kentucky) | 1,204.25 mi (1,938.06 km) |
| Los Alamos to Somerset (New Jersey) | 1,745.27 mi (2,808.74 km) |
