| Signal Hill to Darby (Pennsylvania) | 2,385.97 mi (3,839.84 km) |
| Signal Hill to Dardenne Prairie (Missouri) | 1,559.74 mi (2,510.16 km) |
| Signal Hill to Darien (Illinois) | 1,727.06 mi (2,779.43 km) |
| Signal Hill to Davenport (Iowa) | 1,591.37 mi (2,561.06 km) |
| Signal Hill to Davidson (North Carolina) | 2,113.26 mi (3,400.96 km) |
| Signal Hill to Davie (Florida) | 2,316.25 mi (3,727.64 km) |
| Signal Hill to Davis (California) | 383.89 mi (617.80 km) |
| Signal Hill to Dayton (Nevada) | 384.87 mi (619.39 km) |
| Signal Hill to Dayton (Ohio) | 1,912.22 mi (3,077.43 km) |
| Signal Hill to Daytona Beach (Florida) | 2,195.02 mi (3,532.54 km) |
| Signal Hill to De Pere (Wisconsin) | 1,759.14 mi (2,831.06 km) |
| Signal Hill to De Witt (New York) | 2,339.31 mi (3,764.75 km) |
| Signal Hill to Dearborn (Michigan) | 1,974.77 mi (3,178.08 km) |
| Signal Hill to Dearborn Heights (Michigan) | 1,971.55 mi (3,172.90 km) |
| Signal Hill to DeBary (Florida) | 2,188.91 mi (3,522.72 km) |
