| Santa Monica to Silver Firs (Washington) | 974.93 mi (1,569.00 km) |
| Santa Monica to Silver Spring (Maryland) | 2,307.85 mi (3,714.13 km) |
| Santa Monica to Silver Springs Shores (Florida) | 2,161.88 mi (3,479.21 km) |
| Santa Monica to Silverdale (Washington) | 967.48 mi (1,557.02 km) |
| Santa Monica to Silverton (Oregon) | 792.16 mi (1,274.86 km) |
| Santa Monica to Simi Valley (California) | 22.72 mi (36.57 km) |
| Santa Monica to Simpsonville (South Carolina) | 2,055.01 mi (3,307.22 km) |
| Santa Monica to Sioux City (Iowa) | 1,328.41 mi (2,137.87 km) |
| Santa Monica to Sioux Falls (South Dakota) | 1,337.48 mi (2,152.47 km) |
| Santa Monica to Skokie (Illinois) | 1,751.22 mi (2,818.32 km) |
| Santa Monica to Sleepy Hollow (New York) | 2,464.11 mi (3,965.61 km) |
| Santa Monica to Slidell (Louisiana) | 1,692.76 mi (2,724.23 km) |
| Santa Monica to Smithfield (North Carolina) | 2,264.33 mi (3,644.08 km) |
| Santa Monica to Smithfield (Utah) | 649.76 mi (1,045.68 km) |
| Santa Monica to Smithville (Missouri) | 1,370.59 mi (2,205.75 km) |
