| National City to Dover (New Hampshire) | 2,586.04 mi (4,161.82 km) |
| National City to Dover (New Jersey) | 2,396.95 mi (3,857.53 km) |
| National City to Dover (Ohio) | 2,033.94 mi (3,273.32 km) |
| National City to Downers Grove (Illinois) | 1,709.43 mi (2,751.06 km) |
| National City to Downey (California) | 106.24 mi (170.98 km) |
| National City to Dranesville (Virginia) | 2,249.77 mi (3,620.65 km) |
| National City to Draper (Utah) | 613.83 mi (987.87 km) |
| National City to Drexel Heights (Arizona) | 354.71 mi (570.86 km) |
| National City to Drexel Hill (Pennsylvania) | 2,358.55 mi (3,795.71 km) |
| National City to Duarte (California) | 114.43 mi (184.15 km) |
| National City to Dublin (California) | 441.64 mi (710.75 km) |
| National City to Dublin (Georgia) | 1,980.22 mi (3,186.85 km) |
| National City to Dublin (Ohio) | 1,944.33 mi (3,129.10 km) |
| National City to Dubuque (Iowa) | 1,588.00 mi (2,555.64 km) |
| National City to Duluth (Georgia) | 1,896.07 mi (3,051.42 km) |
