| National City to South Plainfield (New Jersey) | 2,404.70 mi (3,869.99 km) |
| National City to South Portland (Maine) | 2,616.20 mi (4,210.37 km) |
| National City to South Riding (Virginia) | 2,242.17 mi (3,608.42 km) |
| National City to South River (New Jersey) | 2,406.77 mi (3,873.32 km) |
| National City to South Salt Lake (Utah) | 625.49 mi (1,006.62 km) |
| National City to South San Francisco (California) | 457.15 mi (735.70 km) |
| National City to South San Jose Hills (California) | 104.04 mi (167.44 km) |
| National City to South Sioux City (Nebraska) | 1,314.47 mi (2,115.44 km) |
| National City to South St. Paul (Minnesota) | 1,537.47 mi (2,474.32 km) |
| National City to South Valley (New Mexico) | 619.01 mi (996.20 km) |
| National City to South Venice (Florida) | 2,104.72 mi (3,387.22 km) |
| National City to South Whittier (California) | 102.86 mi (165.54 km) |
| National City to South Yarmouth (Massachusetts) | 2,622.25 mi (4,220.11 km) |
| National City to Southaven (Mississippi) | 1,560.14 mi (2,510.81 km) |
| National City to Southchase (Florida) | 2,135.79 mi (3,437.23 km) |
