| San Marino to South Plainfield (New Jersey) | 2,415.97 mi (3,888.13 km) |
| San Marino to South Portland (Maine) | 2,616.76 mi (4,211.27 km) |
| San Marino to South Riding (Virginia) | 2,259.86 mi (3,636.89 km) |
| San Marino to South River (New Jersey) | 2,418.49 mi (3,892.19 km) |
| San Marino to South Salt Lake (Utah) | 568.17 mi (914.38 km) |
| San Marino to South San Francisco (California) | 342.91 mi (551.86 km) |
| San Marino to South San Jose Hills (California) | 14.17 mi (22.81 km) |
| San Marino to South Sioux City (Nebraska) | 1,305.18 mi (2,100.48 km) |
| San Marino to South St. Paul (Minnesota) | 1,520.56 mi (2,447.10 km) |
| San Marino to South Valley (New Mexico) | 652.92 mi (1,050.77 km) |
| San Marino to South Venice (Florida) | 2,167.32 mi (3,487.96 km) |
| San Marino to South Whittier (California) | 13.86 mi (22.31 km) |
| San Marino to South Yarmouth (Massachusetts) | 2,629.28 mi (4,231.41 km) |
| San Marino to Southaven (Mississippi) | 1,597.06 mi (2,570.22 km) |
| San Marino to Southchase (Florida) | 2,193.13 mi (3,529.50 km) |
