| National City to Sumter (South Carolina) | 2,110.13 mi (3,395.93 km) |
| National City to Sun City (Arizona) | 286.26 mi (460.69 km) |
| National City to Sun City Center (Florida) | 2,093.37 mi (3,368.96 km) |
| National City to Sun City West (Arizona) | 282.81 mi (455.14 km) |
| National City to Sun Lakes (Arizona) | 305.55 mi (491.73 km) |
| National City to Sun Prairie (Wisconsin) | 1,672.83 mi (2,692.16 km) |
| National City to Sun Valley (Nevada) | 502.52 mi (808.73 km) |
| National City to Sun Village (California) | 139.87 mi (225.09 km) |
| National City to Sunland Park (New Mexico) | 616.27 mi (991.79 km) |
| National City to Sunny Isles Beach (Florida) | 2,263.93 mi (3,643.45 km) |
| National City to Sunnyside (Washington) | 955.62 mi (1,537.92 km) |
| National City to Sunnyvale (California) | 428.80 mi (690.09 km) |
| National City to Sunrise (Florida) | 2,248.51 mi (3,618.63 km) |
| National City to Sunrise Manor (Nevada) | 269.35 mi (433.47 km) |
| National City to Sunset (Florida) | 2,256.38 mi (3,631.29 km) |
