| Seaham to Dardenne Prairie (Missouri) | 4,069.47 mi (6,549.18 km) |
| Seaham to Darien (Illinois) | 3,819.80 mi (6,147.37 km) |
| Seaham to Davenport (Iowa) | 3,923.13 mi (6,313.67 km) |
| Seaham to Davidson (North Carolina) | 3,864.69 mi (6,219.62 km) |
| Seaham to Davie (Florida) | 4,332.54 mi (6,972.54 km) |
| Seaham to Davis (California) | 5,087.95 mi (8,188.26 km) |
| Seaham to Dayton (Nevada) | 4,985.23 mi (8,022.95 km) |
| Seaham to Dayton (Ohio) | 3,778.18 mi (6,080.39 km) |
| Seaham to Daytona Beach (Florida) | 4,199.23 mi (6,758.02 km) |
| Seaham to De Pere (Wisconsin) | 3,692.08 mi (5,941.84 km) |
| Seaham to De Witt (New York) | 3,318.98 mi (5,341.39 km) |
| Seaham to Dearborn (Michigan) | 3,618.45 mi (5,823.33 km) |
| Seaham to Dearborn Heights (Michigan) | 3,620.62 mi (5,826.83 km) |
| Seaham to DeBary (Florida) | 4,224.81 mi (6,799.17 km) |
| Seaham to Decatur (Alabama) | 4,146.13 mi (6,672.55 km) |
