| Signal Hill to Dixon (California) | 380.18 mi (611.85 km) |
| Signal Hill to Dixon (Illinois) | 1,652.09 mi (2,658.78 km) |
| Signal Hill to Dobbs Ferry (New York) | 2,454.67 mi (3,950.41 km) |
| Signal Hill to Doctor Phillips (Florida) | 2,188.95 mi (3,522.77 km) |
| Signal Hill to Dodge City (Kansas) | 1,051.54 mi (1,692.28 km) |
| Signal Hill to Dolton (Illinois) | 1,745.52 mi (2,809.14 km) |
| Signal Hill to Donna (Texas) | 1,311.78 mi (2,111.11 km) |
| Signal Hill to Dorado (Puerto Rico) | 3,351.17 mi (5,393.19 km) |
| Signal Hill to Doral (Florida) | 2,319.29 mi (3,732.54 km) |
| Signal Hill to Doraville (Georgia) | 1,935.96 mi (3,115.63 km) |
| Signal Hill to Dothan (Alabama) | 1,908.92 mi (3,072.11 km) |
| Signal Hill to Douglas (Arizona) | 529.75 mi (852.54 km) |
| Signal Hill to Douglas (Georgia) | 2,050.40 mi (3,299.80 km) |
| Signal Hill to Douglasville (Georgia) | 1,913.31 mi (3,079.17 km) |
| Signal Hill to Dover (Delaware) | 2,375.97 mi (3,823.76 km) |
