| Signal Hill to Dover (New Hampshire) | 2,601.39 mi (4,186.53 km) |
| Signal Hill to Dover (New Jersey) | 2,419.13 mi (3,893.22 km) |
| Signal Hill to Dover (Ohio) | 2,057.09 mi (3,310.56 km) |
| Signal Hill to Downers Grove (Illinois) | 1,725.79 mi (2,777.40 km) |
| Signal Hill to Downey (California) | 9.56 mi (15.38 km) |
| Signal Hill to Dranesville (Virginia) | 2,277.91 mi (3,665.94 km) |
| Signal Hill to Draper (Utah) | 578.00 mi (930.20 km) |
| Signal Hill to Drexel Heights (Arizona) | 428.20 mi (689.12 km) |
| Signal Hill to Drexel Hill (Pennsylvania) | 2,383.58 mi (3,836.00 km) |
| Signal Hill to Duarte (California) | 27.70 mi (44.58 km) |
| Signal Hill to Dublin (California) | 341.68 mi (549.88 km) |
| Signal Hill to Dublin (Georgia) | 2,030.04 mi (3,267.03 km) |
| Signal Hill to Dublin (Ohio) | 1,968.72 mi (3,168.35 km) |
| Signal Hill to Dubuque (Iowa) | 1,599.59 mi (2,574.28 km) |
| Signal Hill to Duluth (Georgia) | 1,941.75 mi (3,124.95 km) |
