| Signal Hill to Decatur (Alabama) | 1,775.61 mi (2,857.57 km) |
| Signal Hill to Decatur (Georgia) | 1,936.10 mi (3,115.85 km) |
| Signal Hill to Decatur (Illinois) | 1,661.80 mi (2,674.41 km) |
| Signal Hill to Deer Park (New York) | 2,484.23 mi (3,997.98 km) |
| Signal Hill to Deer Park (Texas) | 1,380.88 mi (2,222.30 km) |
| Signal Hill to Deerfield (Illinois) | 1,738.22 mi (2,797.39 km) |
| Signal Hill to Deerfield Beach (Florida) | 2,319.44 mi (3,732.78 km) |
| Signal Hill to Defiance (Ohio) | 1,909.24 mi (3,072.62 km) |
| Signal Hill to DeForest (Wisconsin) | 1,678.24 mi (2,700.87 km) |
| Signal Hill to DeKalb (Illinois) | 1,690.18 mi (2,720.08 km) |
| Signal Hill to Del Aire (California) | 13.96 mi (22.47 km) |
| Signal Hill to Del City (Oklahoma) | 1,181.75 mi (1,901.85 km) |
| Signal Hill to Del Rio (Texas) | 1,061.06 mi (1,707.61 km) |
| Signal Hill to DeLand (Florida) | 2,187.95 mi (3,521.16 km) |
| Signal Hill to Delano (California) | 149.21 mi (240.12 km) |
