| San Marino to Stephenville (Texas) | 1,156.18 mi (1,860.69 km) |
| San Marino to Sterling (Colorado) | 932.43 mi (1,500.61 km) |
| San Marino to Sterling (Illinois) | 1,627.53 mi (2,619.26 km) |
| San Marino to Sterling (Virginia) | 2,265.16 mi (3,645.42 km) |
| San Marino to Sterling Heights (Michigan) | 1,972.78 mi (3,174.88 km) |
| San Marino to Steubenville (Ohio) | 2,088.90 mi (3,361.75 km) |
| San Marino to Stevens Point (Wisconsin) | 1,675.78 mi (2,696.90 km) |
| San Marino to Stevenson Ranch (California) | 32.81 mi (52.80 km) |
| San Marino to Stillwater (Minnesota) | 1,534.29 mi (2,469.19 km) |
| San Marino to Stillwater (Oklahoma) | 1,194.62 mi (1,922.56 km) |
| San Marino to Stockbridge (Georgia) | 1,936.34 mi (3,116.23 km) |
| San Marino to Stockton (California) | 320.60 mi (515.96 km) |
| San Marino to Stone Ridge (Virginia) | 2,257.49 mi (3,633.07 km) |
| San Marino to Stonecrest (Georgia) | 1,939.53 mi (3,121.37 km) |
| San Marino to Stony Brook (New York) | 2,481.69 mi (3,993.90 km) |
