| Los Alamos to Security-Widefield (Colorado) | 215.41 mi (346.67 km) |
| Los Alamos to Sedalia (Missouri) | 742.50 mi (1,194.95 km) |
| Los Alamos to Sedro-Woolley (Washington) | 1,189.51 mi (1,914.33 km) |
| Los Alamos to Seguin (Texas) | 650.20 mi (1,046.40 km) |
| Los Alamos to Selden (New York) | 1,821.51 mi (2,931.44 km) |
| Los Alamos to Selma (Alabama) | 1,124.69 mi (1,810.02 km) |
| Los Alamos to Selma (California) | 743.69 mi (1,196.86 km) |
| Los Alamos to Selma (Texas) | 635.58 mi (1,022.87 km) |
| Los Alamos to Seminole (Florida) | 1,482.18 mi (2,385.34 km) |
| Los Alamos to Seven Hills (Ohio) | 1,376.10 mi (2,214.63 km) |
| Los Alamos to Seven Oaks (South Carolina) | 1,425.31 mi (2,293.81 km) |
| Los Alamos to Severn (Maryland) | 1,629.80 mi (2,622.91 km) |
| Los Alamos to Severna Park (Maryland) | 1,636.69 mi (2,634.00 km) |
| Los Alamos to Sevierville (Tennessee) | 1,268.78 mi (2,041.91 km) |
| Los Alamos to Seymour (Indiana) | 1,136.37 mi (1,828.81 km) |
